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ME1000 RF Circuit Design Courseware Out-of-Box Teaching Solution for the RF Circuit Design
Quick Start Guide revision 2.40
Printed on 28 December 2009
http://dreamcatcher.asia/cw [email protected]
ME1000 RF Circuit Design Quick Start Guide - 2/23
NOTE: This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference. (2) This device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy; and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving unit. Increase the separation between the equipment and the receiver unit. Connect the equipment into an outlet on a different electrical circuit from the
receiver. Consult the dealer or/and an experienced radio/TV technician for help.
WARNING: CHANGES OR MODIFICATIONS NOT EXPRESSLY APPROVED BY THE PARTY RESPONSIBLE FOR COMPLIANCE WITH THE FCC’ RULES (THE FCC’ GRANTEE’) COULD VOID THE USER’S AUTHORITY TO OPERATE THE EQUIPMENT.
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ME1000 RF Circuit Design Quick Start Guide - 3/23
Table of Contents Table of Contents .............................................................................................................................. 3
1. Read Me First ................................................................................................................................ 4
2. Courseware Overview.................................................................................................................... 5
3. Courseware Configuration ............................................................................................................. 6
4. Quick Setup and Verification ........................................................................................................ 11
5. Support and Warranty .................................................................................................................. 18
Appendix A: ME1000 Transmitter Unit ............................................................................................. 19
Appendix B: ME1000 Receiver Unit ................................................................................................. 20
Appendix C: Technical Specifications .............................................................................................. 21
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ME1000 RF Circuit Design Quick Start Guide - 4/23
1. Read Me First Congratulations on your purchase of the ME1000 RF Circuit Design courseware! Please read this Quick Start Guide carefully to ensure you get the most out of your investment in this solution. This courseware includes the following items: Item Quantity Description
CD 1
o Teaching slides (Microsoft® PowerPoint® format) o Lab sheets (Microsoft® Word format) o Problem-based assignments (Microsoft® Word format) o CAE design files (based on Agilent ADS and Genesys software) o Measurement Automation Program (Agilent VEE format) o Windows-based RF Trainer Control Panel software
ME1000 RF Circuit Design Training Kit 1 Transmitter unit and receiver unit
Antennas 2 One each for the transmitter unit and the receiver unit Calibration kit 1 Thru-Reflect-Match (TRM) standard calibration kit RF power combiner 1 Power combiner for OIP3 measurement Jumper cables 9 SMA(m)-to-SMA(m) coaxial cables (0.18 m) Coaxial cables 2 SMA(m)-to-SMA(m) coaxial cables (1 m) USB cables 3 USB cables RF connectors 2 N(m)-to-SMA(f) adapter
Ground cables 2 For grounding purpose (1 m) The following items are not included in this solution but are required/recommended:
One PC running Microsoft® Windows 2000/XP/Vista® with a minimum of 512 MB RAM and USB ports
Appropriate measurement instruments and software (see Section 3.6, "Lab Station" for details)
Appropriate Train-the-Trainer Program (see Section 3.7, "Train-the-Trainer Program" for details)
Complete the steps in Section 4, "Quick Setup and Verification" to start using the ME1000 RFCD TX (transmitter unit) and RX (receiver unit). Thank you for your purchase and do contact us (see Section 5, "Support and Warranty") if you require any assistance.
IMPORTANT The ME1000 RF Circuit Design training kit can be damaged by excessive power levels from the
instruments. Please adhere strictly to the power levels recommended in the instructions.
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ME1000 RF Circuit Design Quick Start Guide - 5/23
2. Courseware Overview The ME1000 serves as an out-of-box teaching solution in the areas of RF and wireless communication targeting final year undergraduates or postgraduates. The modules can be used as standalone trainers to demonstrate basic RF concepts and design principles. These include the characterization of antennas, filters, low-noise amplifier (LNA), power amplifier (PA), mixers, and phase-locked loop (PLL) based frequency synthesizers. The modules can also be connected together to create a fully functional end-to-end RF transceiver. To achieve a better understanding and enhance design knowledge of RF and wireless communications, students are required to complete the lab exercises and assignments. This courseware consists of:
Teaching slides (editable with Microsoft PowerPoint) Training kit: RF Transceiver kit Lab sheets (editable with Microsoft Word) Problem-based assignments (editable with Microsoft Word) Model answers and solutions (downloadable by registered instructors)
The following items are not included but recommended:
Agilent Technologies RF Signal Generator and Spectrum Analyzer o N9310A RF Signal Generator, 9 kHz to 3 GHz o N9320B 3 GHz RF Spectrum Analyzer, 9 kHz to 3 GHz
Agilent Technologies Vector Network Analyzer o N9912A FieldFox RF Analyzer, 4 GHz (with option 104, 110, 303)
Agilent Technologies Noise Figure Analyzer o N8973A Noise Figure Analyzer, 10 MHz to 3 GHz o N4000A SNS Series Noise Source, 10 MHz to 18 GHz (ENR 6 dB)
Agilent Technologies EDA Software o W1418L Genesys Integrated; or o E8975L Advanced Design System
This complete solution is designed to impart knowledge in:
Basic RF concepts RF circuit design concepts RF communication systems concepts RF circuit characterization Usage of RF Electronic Design Automation (EDA) software RF circuit simulation and construction Usage of RF measurement instruments Measurement automation
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ME1000 RF Circuit Design Quick Start Guide - 6/23
3. Courseware Configuration 3.1 Teaching Slides
Editable slides in Microsoft PowerPoint format are provided for the following topics:
Advanced Transmission Line Theory Transmission Line Circuits and RF Microwave Network Analysis Impedance Transformation and Impedance Matching RF Microwave Filters 3-Port and 4-Port Microwave Components Coaxial Components and Rectangular Waveguide Components Passive and Active RF Lumped Components Small-Signal Amplifier Theory SSA Design – Maximum Power Gain and Fixed Transducer Power Gain SSA Design – Low-Noise Amplifier SSA Design – Constant Mismatch and Effective Power Gain General Single-Stage SSA Design Multistage SSA Design RF Oscillator High Power Circuits Broadband Amplifiers
3.2 Design Files and Measurement Automation Program
CAE design files (based on Agilent ADS and Genesys software) Measurement Automation Program (Agilent VEE format) Windows-based RF Trainer Control Panel software
3.3 ME1000 RF Circuit Design Training Kit
Transmitter unit: o 1 x frequency synthesizer o 1 x mixer (upconversion) o 1 x power amplifier o 2 x RF band-select filter o 1 x antenna o 1 x microcontroller-based control unit
Receiver unit:
o 1 x antenna o 1 x RF band-select filter o 1 x low-noise amplifier o 1 x mixer (downconversion) o 1 x frequency synthesizer o 1 x IF bandpass filter o 1 x IF amplifier o 1 x microcontroller-based control unit
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ME1000 RF Circuit Design Quick Start Guide - 7/23
3.4 Lab Sheets Lab Sheet Objective Duration Calibration with Spectrum Analyzer To perform scalar offset calibration, to
verify the signal purity of a signal generator, and to determine the losses contributed by the cables, connectors, and PCB traces
3 Hours
Calibration with Vector Network Analyzer To modify the built-in TRM standards in the VNA, to perform TRM calibration using user-defined calibration kits, and to verify the calibrated results using the Smith Chart plot
3 Hours
Power Amplifier Characterization Using Spectrum Analyzer1
To measure gain, gain compression, harmonic distortion, third-order intercept point, and isolation of power amplifier
3 Hours
Power Amplifier Characterization Using Vector Network Analyzer
To characterize the power amplifier with reflection and transmission measurement, and to measure gain compression using power sweeps
3 Hours
Low-Noise Amplifier Characterization Using Spectrum Analyzer
To measure gain and isolation of a low-noise amplifier
3 Hours
Low-Noise Amplifier Characterization Using Vector Network Analyzer2
To characterize a low-noise amplifier with reflection and transmission measurement
3 Hours
Low-Noise Amplifier Characterization Using Noise Figure Analyzer3
To measure the noise figure of a low-noise amplifier
3 Hours
Filter Characterization Using Spectrum Analyzer
To measure insertion loss, bandwidth, and rejection of an RF bandpass filter
3 Hours
Filter Characterization Using Vector Network Analyzer
To characterize the RF filter with reflection and transmission measurement, and to display results in multiple plots, such as the Smith Chart, Magnitude, and Phase plots.
3 Hours
Mixer Characterization Using Spectrum Analyzer
To measure some important characteristics of the frequency mixer and to understand the frequency conversion principles of the frequency mixer
3 Hours
Mixer Characterization Using Vector Network Analyzer
To measure the standing wave ratio, return loss, RF feedthrough, and LO isolations of a mixer
3 Hours
Frequency Synthesizer Characterization Using Spectrum Analyzer
To measure the output power level, harmonic frequencies, and phase noise of a frequency synthesizer
3 Hours
1 The third-order intermodulation measurement in this lab requires an additional signal generator. 2 Extra exercises on transmission measurements in this lab sheet require a network analyzer with vector
S12/S21 measurement capability. 3 This lab requires a noise figure analyzer.
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ME1000 RF Circuit Design Quick Start Guide - 8/23
Measurement Automation Using Agilent VEE Pro
To introduce Agilent VEE Pro for measurement automation and instruments control
3 Hours
Antenna Reflection Measurement with Vector Network Analyzer
To characterize an antenna through reflection measurement
3 Hours
Antenna Gain Measurement with Spectrum Analyzer
To estimate the gain of an antenna 3 Hours
End-to-End RF Transceiver Measurement
To analyze the signal flow through each module in the transceiver chain
3 Hours
3.5 Problem-based Assignments No Assignment 1 Maximum Operating Distance Measurement Using Spectrum Analyzer 2 Maximum Operating Distance Measurement Using Oscilloscope 3 RF Bandpass Filter Design 4 RF Amplifier Design 3.6 Lab Station
Basic Setup
1 x PC running Microsoft Windows 2000/XP/Vista with a minimum of 512 MB RAM
1 x Agilent N9310A RF Signal Generator, 9 kHz to 3 GHz1
1 x Agilent N9320B 3 GHz RF Spectrum Analyzer, 9 kHz to 3 GHz
1 x Agilent N9912A FieldFox RF Analyzer, 4 GHz [with option 104, 110, 303]2
1 x Agilent N8973A Noise Figure Analyzer, 10 MHz to 3 GHz
1 x Agilent N4000A SNS Series Noise Source, 10 MHz to 18 GHz (ENR 6 dB)
1 x Agilent W1418L Genesys Integrated or E8975L Advanced Design System3
1 x Agilent VEE Pro
The above list can be replaced by instruments and software of similar functions and capabilities. 1 An additional signal generator is required for the third-order intermodulation measurement in the Power
Amplifier Characterization lab. 2 This instrument only performs scalar S12/S21 measurements. It may be replaced by a network analyzer with full
vector measurement capability to perform the extra lab exercises. 3 This software is used for the problem-based assignments.
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ME1000 RF Circuit Design Quick Start Guide - 9/23
The following table shows the training kit and recommended instruments used in each lab.
Lab Sheet
Training Kit Instrument
ME1000 Training Kit
Option 1 RF Signal
Generator & Spectrum Analyzer
Option 2 Vector Network
Analyzer
Option 3 RF Signal Generator, Spectrum Analyzer, &
Vector Network Analyzer
Calibration with Spectrum Analyzer
Calibration with Vector Network Analyzer
Power Amplifier Characterization Using Spectrum Analyzer
Power Amplifier Characterization Using Vector Network Analyzer
Low-Noise Amplifier Characterization Using Spectrum Analyzer
Low-Noise Amplifier Characterization Using Vector Network Analyzer
Low-Noise Amplifier Characterization Using Noise Figure Analyzer
Filter Characterization Using Spectrum Analyzer
Filter Characterization Using Vector Network Analyzer
Mixer Characterization Using Spectrum Analyzer
Mixer Characterization Using Vector Network Analyzer
Frequency Synthesizer Characterization Using Spectrum Analyzer
Measurement Automation Using Agilent VEE Pro
Antenna Reflection Measurement with Vector Network Analyzer
Antenna Gain Measurement with Spectrum Analyzer
End-to-End RF Transceiver Measurement
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ME1000 RF Circuit Design Quick Start Guide - 10/23
3.7 Train-the-Trainer Program (recommended, not included in courseware) Lectures
Essential RF Microwave Concepts RF Circuit Validation and Testing RF Circuit Design – Passive Circuits RF Circuit Design – Active Circuits PLL and Frequency Synthesizer – Concept and Characterization Quick Start to Agilent ADS Agilent VEE Programming Selected topics from the courseware teaching material
Lab Exercises
Selected exercises from the lab sheets
Training details are available at http://dreamcatcher.asia/
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ME1000 RF Circuit Design Quick Start Guide - 11/23
4. Quick Setup and Verification 4.1 The following steps demonstrate the setup and verification of the entire system:
Step 1: Installing the RF Trainer Control Panel Software
Step 2: Powering Up the Transmitter Unit and Receiver Unit
Step 3: Verifying the Transmitter Unit
Step 4: Verifying the Receiver Unit
Step 5: Verifying the Final End-To-End System
IMPORTANT
The transmitter and receiver units can be damaged by excessive power levels from the instruments. Please adhere strictly to the power levels recommended in the instructions.
Turn off the training kit when not in use. Always ensure that the casing is grounded and the cover is latched before powering up the
device.
Step 1 : Installing the RF Trainer Control Panel Software Run the RF Trainer Control
Panel from the ME1000 CD provided. Install the Microsoft .NET Framework when prompted.
Launch two Control Panels by
clicking the RF_Trainer icon on your desktop twice. One Control Panel will control the transmitter unit while the other will control the receiver unit.
Two Control Panels
1
2
1
2
The N(m)-to-SMA(f) adapters are always connected to all SMA connectors of the training kit to prevent the SMA connectors from wearing out due to regular connection and disconnection of the SMA cables. If the adapters are worn out, they can be easily replaced with new ones. This measure is taken to simplify part replacement since the SMA connectors of the training kit is soldered to the PCB board.
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ME1000 RF Circuit Design Quick Start Guide - 12/23
Step 2 : Powering Up the Transmitter Unit and Receiver Unit
Connect the transmitter unit
and receiver unit to the PC using the USB cables.
Powering Up the Transmitter Unit Select TX Unit from Control
Panel 1. Click Connect to RF Trainer.
The green LED on the control
unit of the transmitter will blink once, indicating a successful connection.
Powering Up the Receiver Unit Select RX Unit from Control
Panel 2. Click Connect to RF Trainer.
The green LED on the control
unit of the receiver will blink once, indicating a successful connection.
Receiver unit
USB cable Transmitter unit 1
USB cable 1
3
Control unit of the transmitter
4
Control Panel 1
1
3
4
2
6
7
5
Control Panel 2
5
6
7
Control unit of the receiver
2
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ME1000 RF Circuit Design Quick Start Guide - 13/23
Step 3 : Verifying the Transmitter Unit Click Frequency Synthesizer
Off to turn it on. Set the frequency to 818 MHz.
Verifying the Synthesizer Connect the spectrum analyzer
to the Synthesizer Out port of the transmitter unit.
Check if the output signal from
the synthesizer is correct.
Verifying the Mixer Click Up-Converter Off to turn
on the mixer.
TX control panel
Transmitter unit Synthesizer Out port
Spectrum analyzer
1
1
2
2
3
3
4
4
TX control panel
N9320B Spectrum Analyzer setting: “[ ]”: Hardkey; “ ”: Softkey Center Freq: 818 MHz [Frequency] > [818] > MHZ Span: 10 MHz N9320B setup: [SPAN] > [10] > MHZ
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ME1000 RF Circuit Design Quick Start Guide - 14/23
Reconnect the spectrum
analyzer to the IF Out port. Use the jumper cable to
connect the Synthesizer Out port to the Mixer LO In port.
Connect the signal generator
(50 MHz, –15 dBm) to the Mixer RF In port.
Check the spectrum analyzer to
see if the mixer produces any intermodulation products such as (±n818 ± m50) MHz.
Verifying the End-To-End Transmitter Reconnect the spectrum
analyzer to the Bandpass Filter Out port.
Use the jumper cables to
connect all the ports as shown on the right.
Click Power Amplifier Off to
turn on the power amplifier. Check the spectrum analyzer
whether the signal generator output is upconverted from 50 MHz to 868 MHz.
Power off the signal generator.
50 MHz –15 dBm
818 MHz
Spectrum analyzer Signal generator
50 MHz –15 dBm
818 MHz
Spectrum analyzer Signal generator
868 MHz
5
5
6
6
7
7
8
8
9
9
10
10
12
12
13
13
11
11
N9310A Signal Generator setting: Frequency: 50 MHz [Frequency] > [50] > MHZ Amplitude: –15 dBm [Amplitude] > [+/–] > [15] > dBm Turn off Mod.: [MOD On/Off] Turn on RF Out: [RF On/Off]
N9320B Spectrum Analyzer setting: Center Freq: 818 MHz [Frequency] > [818] > MHZ Span: 500 MHz [SPAN] > [500] > MHZ Note: Reduce the SPAN value to get a more accurate frequency measurement
N9320B Spectrum Analyzer setting: Locate signal with Marker: [Peak Search] Next Peak search: Next Peak
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ME1000 RF Circuit Design Quick Start Guide - 15/23
Step 4 : Verifying the Receiver Unit
Click Frequency Synthesizer Off to turn it on. Set the frequency to 818 MHz.
Verifying the Synthesizer Connect the spectrum analyzer
to the Synthesizer Out port. Check if the output signal from
the frequency synthesizer is correct.
Verifying the Mixer Click Mixer Off to turn on the
mixer.
Receiver unit Synthesizer Out port
2
RX control panel
RX control panel
Spectrum analyzer
1 1
2
3 3
4
4
N9320B Spectrum Analyzer setting: Center Freq: 818 MHz [Frequency] > [818] > MHZ Span: 10 MHz [SPAN] > [10] > MHZ
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ME1000 RF Circuit Design Quick Start Guide - 16/23
Reconnect the spectrum
analyzer to the IF Out port. Use a jumper cable to connect
the Synthesizer Out port to the Mixer LO In port.
Reconnect the signal generator
(868 MHz, –15 dBm) to the Mixer RF In port.
Check the spectrum analyzer
whether the mixer produces intermodulation products, such as (±n818 ± m868) MHz.
Verifying the End-To-End Receiver Reconnect the spectrum
analyzer to the Bandpass Filter Out port.
Reconnect the signal generator
to the Bandpass Filter In port.
Use jumper cables to connect all the ports shown on the right.
Click LNA Off and IF Amplifier
Off to turn on the LNA and IF Amp.
Check the spectrum analyzer
whether the signal generator output is downconverted from 868 MHz to 50 MHz.
Power off the signal generator.
868 MHz –15 dBm
818 MHz
Spectrum analyzer Signal generator
868 MHz –15 dBm
818 MHz
Spectrum analyzer Signal generator
50 MHz
5
5
6
6
7
7
8
8
9
9
10
10
11
13
13
14
14
12
12
N9310A Signal Generator setting: Frequency: 868 MHz [Frequency] > [868] > MHZ Amplitude: –15 dBm [Amplitude] > [+/–] > [15] > dBm Turn off Mod.: [MOD On/Off] Turn on RF Out: [RF On/Off]
N9320B Spectrum Analyzer setting: Start Freq: 0 MHz [Frequency] > Start Freq > [0] > MHZ Stop Freq: 3 GHz Stop Freq > [3] > GHZ Note: Set the stop freq to 100 MHz to get a more accurate 50 MHz frequency measurement.
11
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ME1000 RF Circuit Design Quick Start Guide - 17/23
Step 5 : Verifying the Final End-To-End System
Connect the antenna to the transmitter unit. Connect the antenna to the receiver unit. Separate the units about 1 meter apart.
Reconnect and power up the signal generator as shown above. Check the spectrum analyzer whether the signal generator output from the transmitter unit is
received at the receiver unit. The received signal is in the region of –50 dBm. Ensure that the noise floor of your spectrum
analyzer is below this level. You might need to change the IF Amplifier gain (for example, to Level 13) if the received signal is too weak or your spectrum analyzer noise floor is too high.
1
1
2
2
3
4
4
5
5
1 m
50 MHz –15 dBm
818 MHz 818 MHz
868 MHz
50 MHz
6
3
6
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ME1000 RF Circuit Design Quick Start Guide - 18/23
5. Support and Warranty 5.1 Terms and Conditions This courseware product contains scholarly and technical information and is protected by copyright laws and international treaties. No part of this publication may be reproduced by any means, be it transmitted, transcribed, photocopied, stored in a retrieval system, or translated into any language in any form, without the prior written permission of Acehub Vista Sdn. Bhd. The use of the courseware product and all other products developed and/or distributed by Acehub Vista Sdn. Bhd. are subject to the applicable License Agreement.
For further information, see the Courseware Product License Agreement.
To retrieve the password for installation of the provided materials and software as well as the model answers and solutions for lab sheets, please register yourself at http://dreamcatcher.asia/cw under the Product Registration menu using the product key provided with the education courseware. 5.2 Product Warranty
Acehub Vista Sdn. Bhd. warrants that its products sold will at the time of shipment be free from defects in material and workmanship and will conform to Acehub Vista Sdn. Bhd.’s applicable specifications.
If Acehub Vista Sdn. Bhd. receives notice of a defect or non-conformance during the one
year warranty period, Acehub Vista Sdn. Bhd. will, at its option, repair or replace the affected product. Buyer will pay shipping expenses for return of such product to Acehub Vista Sdn. Bhd. or its authorized reseller. Acehub Vista Sdn. Bhd. or its authorized reseller will pay expenses for shipment of the repaired or replacement product.
This warranty shall not apply to any products Acehub Vista Sdn. Bhd. determines have been,
by Buyer or otherwise, subject to operating and/or environmental conditions in excess of the maximum values established in applicable specifications, or have been subject to mishandling, misuse, neglect, improper testing, repair, alteration, damage, assembly, or processing that alters physical or electrical properties.
In no event will Acehub Vista Sdn. Bhd. be liable for any incidental or consequential
damages.
This warranty extends to Buyer only and not to Buyer's customers or users of Buyer's products and is in lieu of all other warranties whether expressed, implied, or statutory including implied warranties of merchantability of fitness.
For technical support and warranty, email [email protected].
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ME1000 RF Circuit Design Quick Start Guide - 19/23
Appendix A: ME1000 Transmitter Unit The Transmitter Unit (TX) contains the basic blocks of a typical RF front-end system as follows:
RF Frequency Synthesizer Bandpass Filters Upconverter Power Amplifier
The block diagram of the TX is shown below. The TX accepts a modulated 50 MHz intermediate frequency (IF) signal with a maximum bandwidth of 1 MHz. This is then upconverted to 868 MHz by the Upconverter. The Bandpass Filters suppress unwanted frequency components while the Power Amplifier boosts the signal power to a maximum of 1 mW (into a 50 Ω load) before being fed to the antenna. The Power Amplifier, Upconverter, and Frequency Synthesizer, being active circuits, are controlled by the Control Unit. The Control Unit receives commands from the personal computer (PC) via the universal serial bus (USB) port. Applications running on the PC intercept the user’s instructions and send the appropriate commands to the Control Unit of the TX. The Control Unit in turn provides the necessary power and control signals to the active circuits.
Transmitter Unit
upconverter in
upconverter out
upconverter LO in
synthesizer out
filter out
filter in
amp out
amp in
filter in
USB port
Upconverter RF Bandpass Filter 1
Power Amplifier
RF Bandpass Filter 2
Control Unit
Antenna
Synthesizer
filter out
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ME1000 RF Circuit Design Quick Start Guide - 20/23
Appendix B: ME1000 Receiver Unit The Receiver Unit (RX) contains the basic blocks of a typical RF front-end system as follows:
RF Frequency Synthesizer. Bandpass Filters. Downconverter. Low-Noise Amplifier. Intermediate Frequency (IF) Amplifier.
The block diagram of the RX is shown below. The antenna on the RX accepts a modulated 868 MHz RF signal with a maximum bandwidth of 1 MHz. This is amplified by the Low-Noise Amplifier and subsequently downconverted to a 50 MHz IF signal by the Downconverter. The variable gain IF Amplifier provides further amplification of the IF signal to a maximum of 3 mW (into a 50 Ω load). The RF and IF Bandpass Filters suppress unwanted frequency components. The Low-Noise Amplifier, Downconverter, Frequency Synthesizer, and IF Amplifier, being active circuits, are controlled by the Control Unit. The Control Unit receives commands from the personal computer (PC) via the universal serial bus (USB) port. Applications running on the PC intercept the user’s instructions and send appropriate commands to the Control Unit of the RX. The Control Unit in turn provides the necessary power and control signals to the active circuits.
Antenna
Low-Noise Amplifier
RF Bandpass
Filter
Synthesizer
Control Unit
Downconverter IF Bandpass
Filter
IF Amplifier
Receiver Unit
mixer in
mixer out
mixer LO in
synthesizer out
filter out
filter in
amp out
amp in
filter out
filter in
USB port
amp out
amp in
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ME1000 RF Circuit Design Quick Start Guide - 21/23
Appendix C: Technical Specifications Low-Noise Amplifier Min Typical Max Unit Remarks / Descriptions Power supply voltage 3 3.3 3.6 V Small-signal gain @ 868 MHz 9 11 15 dB Input return loss 9 14 18 dB Output return loss 9 13 15 dB Isolation 15 20 22 dB Noise figure - - 5 dB at T= 23 C
Frequency Synthesizer Min Typical Max Unit Remarks / Descriptions Power supply voltage 3 3.3 3.6 V Output frequency 816 - 880 MHz Output power –6 –4.5 –2 dBm into a 50 Ω load
1st harmonic suppression 15 - 45 dB 2nd harmonic suppression 20 - 50 dB Frequency resolution - 0.1 - MHz Power Amplifier Min Typical Max Unit Remarks / Descriptions Power supply voltage 3 3.3 3.6 V Small-signal gain @ 868 MHz 13 15 16 dB Input return loss 13 18 29 dB Output return loss 7 12 15 dB Output 1 dB compression power 8 10 11 dBm into a 50 Ω load
Input P1 dB compression power –7 –5 –3 dBm
Output 3rd order intercept power 15 17 25 dBm 1 MHz separation, into a 50 Ω load
Isolation 20 21 23 dB RF Bandpass Filter (V1.01) Min Typical Max Unit Remarks / Descriptions Lower 3 dB frequency 800 - - MHz Only min limit required
Upper 3 dB frequency - - 1300 MHz Only max limit required Insertion loss @ 868 MHz - 2.5 4 dB
Insertion loss @ 600 MHz - 25 30 dB 200 MHz from 3 dB limit
Insertion loss @ 1500 MHz - 22 32 dB 200 MHz from 3 dB limit Input return loss @ 868 MHz 8 15 21 dB
Output return loss @ 868 MHz 8 21 23 dB
RF Bandpass Filter (V2.00) Min Typical Max Unit Remarks / Descriptions Lower 3 dB frequency 867.5 - - MHz Only min limit required
Upper 3 dB frequency - - 869.3 MHz Only max limit required
Insertion loss @ 868 MHz - 4 6.5 dB
Input return loss @ 868 MHz 10 12 15 dB
Output return loss @ 868 MHz 10 12 15 dB
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ME1000 RF Circuit Design Quick Start Guide - 22/23
IF Bandpass Filter (V1.00) Min Typical Max Unit Remarks / Descriptions Lower 3 dB frequency 41 - - MHz Only min limit required Upper 3 dB frequency - - 57 MHz Only max limit required
Insertion loss @ 50 MHz - 3 5 dB
Insertion loss @ 43 MHz - 5 7 dB Insertion loss @ 57 MHz - 5 7 dB
Input return loss @ 50 MHz 10 17 19 dB
Output return loss @ 50 MHz 10 14 17 dB Downconverter Mixer Min Typical Max Unit Remarks / Descriptions Power supply voltage 3 3.3 3.6 V
LO to RF isolation @ 818 MHz 5 7 9 dB into 50 a Ω load
LO to IF isolation @ 818 MHz 13 15.5 18 dB into 50 a Ω load
Input return loss @ 868 MHz 2 3 5.5 dB RF
Input return loss @ 818 MHz 1.5 2.5 4 dB LO Input return loss @ 50 MHz 2 4 6 dB IF
RF feedthrough 14 15 17 dB
Conversion loss @ 868 MHz 0.5 2 3.5 dB RF@ –15 dBm, 868 MHz; LO @ –4 dBm, 818 MHz
Upconverter Mixer Min Typical Max Unit Remarks / Descriptions Power supply voltage 3 3.3 3.6 V
LO to RF isolation @ 818 MHz 6 8 11 dB into a 50 Ω load
LO to IF isolation @ 818 MHz 7 10.5 12 dB into a 50 Ω load
Input return loss @ 868 MHz 3 5 8 dB IF
Input return loss @ 818 MHz 8 10 12 dB LO
Input return loss @ 50 MHz 1.5 2.5 4 dB RF
RF feedthrough @ 50 MHz 7 12 16 dB
Conversion loss @ 868 MHz 3 5 - dB RF @ –15 dBm, 50 MHz; LO @ –3 dBm, 818 MHz
IF Amplifier Min Typical Max Unit Remarks / Descriptions Power supply voltage 3 3.3 3.6 V Small-signal gain @ 50 MHz (Gain Level = 10) 7 9 12 dB Small-signal gain @ 50 MHz (Gain Level = 12) 11 12.5 16 dB Small-signal gain @ 50 MHz (Gain Level = 15) 14 16 20 dB Input return loss 10 12.5 17 dB Antenna Min Typical Max Unit Remarks / Descriptions Frequency range 806 - 960 MHz Gain at operating range - 2.5 - dBi VSWR - <2 - - Polarization - Vertical - - Length - 210 - mm
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ME1000 RF Circuit Design Quick Start Guide - 23/23
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