Single-Balanced Mixer

Document Revision No.: 3Revised 05/11/2012Jared Burdick

RIT SENIOR DESIGN PROJECTSingle-Balanced MixerFinal Test Plan

Jared P. Burdick5/11/2012

Single-Balanced Mixer Project

Test Plan & Test Results

Table of Contents

1.PRELIMINARY TEST PLAN31.1. Sub-Systems / Functions / Features31.2.Template41.3.Test Equipment42. TEST PLAN52.1.Data Collection52.1.1.Data Collection Structure52.1.2.Sampling Techniques52.1.2.1.Test 1 – Conversions Loss Measurements52.1.2.1.1.Test Description – Conversion Loss52.1.2.1.2.Test Set-up – Conversion Loss62.1.2.1.3.Test Conditions – Conversion Loss82.1.2.2.Test 2 – RF to IF Isolation Measurements82.1.2.2.1.Test Description – RF to IF Isolation82.1.2.2.2.Test Set-up – RF to IF Isolation82.1.2.2.3.Test Conditions – RF to IF Isolation92.1.2.3.Test 3 – LO to IF Isolation Measurements92.1.2.3.1.Test Description – LO to IF Isolation92.1.2.3.2.Test Set-up – LO to IF Isolation102.1.2.3.3.Test Conditions – LO to IF Isolation102.1.2.4.Test 4 – 1dB Compression Point Measurements112.1.2.4.1.Test Description – 1dB Compression Point112.1.2.4.2.Test Set-up – 1dB Compression Point112.1.2.4.3.Test Conditions – 1dB Compression Point122.1.2.5.Test 5 – VSWR (Return Loss) Measurements122.1.2.5.1.Test Description – Return Loss (VSWR)122.1.2.5.2.Test Set-up – Return Loss (VSWR)122.1.2.5.3.Test Conditions – Return Loss (VSWR)132.1.2.6.Test 6 – Spurious Output Measurements132.1.2.6.1.Test Description – Spurious Output142.1.2.6.2.Test Set-up – Spurious Output142.1.2.6.3.Test Conditions – Spurious Output142.1.3.Sample Size152.1.4.Reporting Problems - Corrective Action152.2.Test Procedure & Timeline153.DESIGN VERIFICATION153.1. Logistics153.2. Analysis of Data - Design Summary153.3. Conclusion / Design Summary163.3.1.Lab Demo163.3.2.Meeting with Sponsor16APPENDIX 1: Test Data Templates17

1. PRELIMINARY TEST PLAN

1.1. Sub-Systems / Functions / Features

This test plan document provides structure to the overall evaluation and verification of the prototype Single-Balanced Mixer design. The plan considers the lower-level elements (e.g. Functions or sub-circuits) as well as the top-level “system” which is the final mixer itself. The plan will incorporate element simulations, element evaluations (measurements), top-level (system) simulations and final product measurements. The goal is to develop an approach for analyzing (simulating) and/or measuring lower –level blocks and the complete system that is practical to implement given the constraints of the project. The major constraints are time, cost, and availability of test equipment. These will limit the ability to measure all sub-circuits as in many cases custom test fixtures would have to be designed, fabricated and built, or access to specific test equipment may not be readily available. The plan will identify what alternate approaches have been taken as well as any associated risk. Ultimately, the final unit will be tested for the specified parameters, however, should the final unit not meet any performance requirements the lower-level evaluations would be helpful in identifying the cause, and eventually, the corrective actions.

The block diagram for the single-balanced mixer is shown in the figure below. Each major element (function) is identified and has a reference designation number that will be used later.

All of the major sub-systems (elements) are listed in the table below with the reference designation from the block diagram.

1.2. Template

The preliminary test data template is included in Appendix A. This format is subject to change prior or after measurements. It is anticipated that modifications will be minor and performed only to clarify presented results.

1.3. Test Equipment

Testing of the completed mixer prototype will take place at Anaren. It has been verified that Anaren has all of the equipment required and will make them available when needed.

The list of Test equipment to be utilized is listed in the Table below.

2. TEST PLAN

2.1. Data Collection

2.1.1. Data Collection Structure

2.1.2. Sampling Techniques

2.1.2.1. Test 1 – Conversions Loss Measurements

2.1.2.1.1. Test Description – Conversion Loss

Conversion Loss is the measurement of the drop in power level of the RF Input signal to the converted corresponding IF Output signal. This will be measured by connecting the Mixer (Unit Under Test or UUT) as shown in 2.2.1.2 (Figure 1). The UUT will be supplied with the LO drive input (Signal Generator 2) and RF input signal (Signal Generator 1) and the IF output signal will be connected to the Spectrum Analyzer as shown. Calibration of the set-up will need to be performed prior to measuring the UUT. After calibration, the RF Input signal will be stepped through frequencies and the fundamental IF output power will be measured with the Spectrum Analyzer. Final loss numbers will be corrected with the calibrated correction factors as described below. This test will be performed with the maximum RF power level and the minimum LO input drive level as specified. Additionally, 2 full swept-frequency plots (0.8 to 1.0 GHz and 1.0 to 1.2 GHz) will be recorded from the spectrum analyzer to verify that no unusual frequency response points exist in-between the discrete measured points.

2.1.2.1.2. Test Set-up – Conversion Loss

The test set-up is as shown below in Figure 1.

Equipment Required: As shown in Figure 1 using the equipment listed in 1.3. Three suitable test cables will also be required to connect the RF Signal Generators and Network Analyzer to the UUT as well as appropriate test adapters. A DC block will be incorporated at the input to the Spectrum Analyzer to avoid damage to the equipment.

Calibration: First the RF Input level will be calibrated for the level specified in 2.1.2.1.3. The Power Meter will be first calibrated and zeroed by connecting it to its internal RF source and running its embedded routine. Once zeroed, the meter will be connected to the cable at the end of RF Signal Generator 1 (RF). The RF Generator will then be stepped through the test frequencies per 2.1.2.1.3 and the output level of the Signal Generator will be adjusted to produce a -10.0 dBm level as measured with the Power Meter. The output power setting of the Signal Generator will then be recorded in the Conversion Loss table of Appendix 1 in the "RF Gen Setting" section, under the “RF Gen Level” column next to the appropriate frequency. This will be repeated for all test frequencies listed.

Next the Spectrum Analyzer will be calibrated for measuring power levels over the IF band. For this calibration, RF Signal Generator 1 (RF) will again be connected to the Power Meter with its cable. The frequency will be stepped through the first 9 points listed in the table of Appendix 1 (Test Steps 1-9) in the IF Power Level Calibration section. The output power level of the generator will be set to -10 dBm nominal and not changed during the calibration. The power level reading from the power meter will be recorded under the “Pwr Mtr Level” column. Once all of the test frequencies are completed, the cable will then be connected to the Spectrum Analyzer (with the DC Block connected to its input). The Spectrum Analyzer will be set for an IF band from its lowest frequency (9 KHz) to 250 MHz. Resolution and Video BW’s will be automatically set. The Reference Level will be set to -5 dBm and the scale to 1dB/division. The signal generator will again be stepped through the same frequencies (without touching the amplitude level) and the power level will be read off the Spectrum Analyzer by using the Peak Search Marker function and recorded in the “Sp An Level” column.

These values collected will then be entered into an Excel workbook and the correction factors will be calculated and filled into the spreadsheet (as well as the IF data from Test Steps 10-17). Calibration/Correction is now complete.

Measurements: First the RF Signal Generator 2 (LO) will be connected to the Power Meter with its cable, the frequency set per 2.1.2.1.3 and at the specified power level. The signal generator will be adjusted to produce the specified output level and then connected to the LO Input port of the UUT.

Next, RF Signal Generator 1 (RF) will be connected to the RF Input port and the IF Output port will be connected to the Spectrum Analyzer (DC Block included). The RF Input frequency will be stepped through the test frequencies listed in Appendix 1 with the output level being adjusted to the corrected setting listed for each frequency (to produce a known -10 dBm signal). The Spectrum Analyzer (with the same settings specified in the calibration section, except the Reference Level will be set to -10 dBm) will be used to measure the fundamental output (IF) power level using the Peak Search Marker function. The level read will be recorded in the "Conversion Loss Calculation Section" of Appendix 1 under the “Sp An Level” column.

Finally, 2 swept plots will be generated to show the continuous shape of the IF output fundamental level. For this, the RF Generator 1 (RF) will be set to sweep from 0.7 GHz to 1.3 GHz (100 MHz beyond the operating range). Note the “sweep” will be manual as the generator used does not have automatic swept capability. The Spectrum Analyzer will be set to for a range of 9 kHz to 300 MHz. The Max Hold function will be selected and the signal generator will be slowly varied from 0.7 to 1.0 GHz and the resulting plot will be saved to disk. This will be repeated over the RF frequency range of 1.0 to 1.3 GHz.

Data Formats: Once the data has been recorded it will be entered into the Excel worksheet and the data will automatically be corrected. The workbook will also produce several plotted graphs. The plots taken will also be included.

2.1.2.1.3. Test Conditions – Conversion Loss

The test conditions for the conversion loss measurements areas indicated in the table below.

2.1.2.2. Test 2 – RF to IF Isolation Measurements

2.1.2.2.1. Test Description – RF to IF Isolation

RF to IF Isolation is a measure of the RF signal “leakage” present at the IF Output port. This will be measured by connecting the Mixer (Unit Under Test or UUT) as shown in 2.1.2.2.2 (Figure 2). The UUT will be supplied with the LO drive input (Signal Generator 2) with the IF output signal connected to the Spectrum Analyzer as shown. Calibration of the set-up will need to be performed prior to measuring the UUT. After calibration, the level of RF signal present at the IF output port will be measured and compared against the RF input level.

2.1.2.2.2. Test Set-up – RF to IF Isolation

The test set-up is as shown below in Figure 2.

Equipment Required: As shown in Figure 2 using the equipment listed in 1.3. Three suitable test cables will also be required to connect the RF Signal Generators and Network Analyzer to the UUT as well as appropriate test adapters. A DC block will be incorporated at the input to the Spectrum Analyzer to avoid damage to the equipment.

Calibration: The RF input from RF Input Signal Generator 1 (RF) will use the same corrected output power settings as determined in the Calibration section of the Conversion Loss Measurement (2.1.2.1.2), assuming the measurements are performed within a reasonable time after the calibration (within 6 hours). If not, the calibration should be repeated.

Measurements: The LO Input will be connected to RF Signal Generator 2 (LO) set per 2.1.2.2.3. The IF Output port will be connected to the Spectrum Analyzer and the Signal Generator 1(RF) will be connected to the UUT RF Input port. Signal Generator 1 (RF) will be stepped through the test frequencies as defined in 2.1.2.2.3 with the output power corrected for -10 dBm for each frequency. The Spectrum Analyzer will be set for a band of 750 MHz to 1250 MHz with a reference level of -10 dBm and 1 dB per division. The level of the RF signal at the IF output will be measured using the Marker function set to the test frequency and recorded in Appendix 1 under the “RF Level at IF Out”.

Data Formats: Data will be hand recorded into a table as shown in Appendix 1 and then transferred into the Excel workbook where the Isolation figure will be calculated automatically (RF Input Level minus the RF Level at the IF Output).

2.1.2.2.3. Test Conditions – RF to IF Isolation

The test conditions for the LO to RF Isolation measurement is as indicated in the table below.

2.1.2.3. Test 3 – LO to IF Isolation Measurements

2.1.2.3.1. Test Description – LO to IF Isolation

LO to IF Isolation is the LO signal “leakage” present at the IF Output port. This will be measured by connecting the Mixer (Unit Under Test or UUT) as shown in 2.1.2.2.2 (Figure 3). The UUT will be supplied with the LO drive input (Signal Generator 2) with the IF output signal connected to the Spectrum Analyzer as shown. Calibration of the set-up will need to be performed prior to measuring the UUT. After calibration, the level of LO signal present at the IF output port will be measured and compared against the LO input level.

2.1.2.3.2. Test Set-up – LO to IF Isolation

The test set-up is as shown below in Figure 3.

Equipment Required: As shown in Figure 3 using the equipment listed in 1.3. Two suitable test cables will also be required to connect the RF Signal Generator and Network Analyzer to the UUT as well as one 50 ohm termination and any appropriate test adapters. A DC block will be incorporated at the input to the Spectrum Analyzer to avoid damage to the equipment.

Calibration: For calibration, the output of RF Signal Generator 2 (LO) will be connected to the Power Meter at the specified frequency and the signal generator power level out adjusted to produce the desired level as specified in 2.1.2.3.3.

Measurements: The IF Output port will be connected to the Spectrum Analyzer and the RF Signal Generator 2 (LO) will be connected to the UUT (without changing any settings after the reference level was set) LO Input port. The Spectrum Analyzer will be set for a Center Frequency of 1.0 GHz and a span of 100 MHz. The Reference Level will be set to -10 dBm and 10dB/division. The LO signal will be measured with the Spectrum Analyzer using the Marker function and recorded.

Data Formats: Data will be hand recorded into a table as shown in Appendix 1, then input into the Excel workbook where the LO to IF Isolation will be calculated.

2.1.2.3.3. Test Conditions – LO to IF Isolation

The test conditions for the LO to IF Isolation measurement is as indicated in the table below.

2.1.2.4. Test 4 – 1dB Compression Point Measurements

2.1.2.4.1. Test Description – 1dB Compression Point

The 1dB compression point defines where the relationship between input power level and output power level ceases to be linear by approximately 1 dB. Higher RF input powers will eventually saturate the diodes until no more voltage increase is possible. This test will be run at the minimum LO power level of +10dBm and will consist of stepping the RF Input power level higher while reading the IF Output fundamental power level with a Spectrum Analyzer. The IF Output power level will be recorded for each RF Input level, until it saturates. This will be performed at several different RF frequencies across the operating frequency range (see 2.1.2.4.3).

2.1.2.4.2. Test Set-up – 1dB Compression Point

The test set-up is as shown below in Figure 4.

Equipment Required: As shown in Figure 4 using the equipment listed in 1.3. Three suitable test cables will also be required to connect the RF Signal Generators and Network Analyzer to the UUT as well as appropriate test adapters. A DC block will be incorporated at the input to the Spectrum Analyzer to avoid damage to the equipment.

Calibration: No additional calibration will be performed. Since Relative measurements only will be made it will be assumed that power level differences between signals taken at the same instant will be within the manufacturers' specification.

Measurements: The LO input power will be set to the level specified and the RF Input level and frequencies will be set per 2.1.2.4.3. The RF input will be set to the first test frequency and the first (lowest power) point per Appendix 1. The Spectrum Analyzer will be set with the Center Frequency set to the test frequency, the span set to 50 MHz, and amplitude at 1 dB/division. The reference level will start at -10 dBm but will need to be adjusted up several times as power is increased. The IF output power level will be measured using the Peak Search Marker function and recorded in the appropriate cell in Appendix 1 und “IF Output Level” section. The signal level will then be increased in 1dB increments and the IF output level will be recorded. This will be repeated until the output is definitely in saturation. This will be repeated for multiple frequencies as outlined 2.1.2.4.3.

Data Formats: Data will be hand recorded into a table as shown in Appendix 1. It will then be entered into the Excel workbook where the “Approximate Conversion Loss (dB) – Calculated” section will automatically fill in. The data for each test frequency will be reviewed and the approximate point (relative to input power) where the conversion loss has increased 1dB will be recorded as the 1dB compression point for that frequency.

2.1.2.4.3. Test Conditions – 1dB Compression Point

The test conditions for the 1dB compression point measurements are as indicated in the table below.

2.1.2.5. Test 5 – VSWR (Return Loss) Measurements

2.1.2.5.1. Test Description – Return Loss (VSWR)

VSWR will be measured as Return Loss. This will measure the quality of the impedance match (to 50 ohms) of the LO, RF, and IF ports over their respective operating frequency ranges.

2.1.2.5.2. Test Set-up – Return Loss (VSWR)

The test set-up is as shown below in Figure 5.

Equipment Required: As shown in Figure 5 using the equipment listed in 1.3. Two suitable test cables will also be required to connect the RF Signal Generator and Network Analyzer to the UUT as well as appropriate test adapters. Two 50Ω SMA terminations with 25dB or better return loss will also be required.

Calibration: The network analyzer will be calibrated per manufacturers' instructions using calibration standards provided (e-cal module) from 300 KHz to 1.5 GHz minimum.

Measurements: 3 separate measurements will be performed using per the test conditions specified in 2.1.2.5.3. This will include the LO, RF, and IF ports. Connections of the equipment will be per Figure 5 according to the table included in the figure. The LO Input port will be excited with RF Signal Generator 2 for measurements of the IF Output port only. The Analyzer will be swept over frequency per the table in 2.1.2.5.3.

Data Formats: Data will be downloaded as a screen shot and the worst case recorded in Appendix 1.

2.1.2.5.3. Test Conditions – Return Loss (VSWR)

The test conditions for the VSWR measurements are as indicated in the table below. For measurement of the IF Output port the LO will be set to 1.0 GHz and a level of +10 dBm.

2.1.2.6. Test 6 – Spurious Output Measurements

2.1.2.6.1. Test Description – Spurious Output

Spurious outputs will be defined as all frequencies present at the IF output port other than the desired IF fundamental output and the LO and RF leakage signals. These signals will consist of the multitude of inter-modulation products generated by the diodes as combinations of the LO & RF harmonic frequencies. This test will measure the relative levels and frequencies of these products for a number of different RF input frequencies across the operating range. This is a non-specified parameter, and is being measured interest only.

2.1.2.6.2. Test Set-up – Spurious Output

The test set-up is as shown below in Figure 6.

Equipment Required: As shown in Figure 6 using the equipment listed in 1.3. Three suitable test cables will also be required to connect the RF Signal Generators and Network Analyzer to the UUT as well as appropriate test adapters. A DC block will be incorporated at the input to the Spectrum Analyzer to avoid damage to the equipment.

Calibration: No additional calibration will be required.

Measurements: IF output spectral measurements will be made for a number of RF input frequencies as specified in 2.1.2.6.3. The RF input frequency will be stepped and "output screenshots" will be taken to record the spurious output of the mixer.

Data Formats: Data will be reviewed, summarized, analyzed and compared against theoretical (simulated) performance as there is no customer specification.

2.1.2.6.3. Test Conditions – Spurious Output

The test conditions for the Spurious Output measurements are as indicated in the table below.

2.1.3. Sample Size

The sample size tested was 2 prototype units. Enough material for approximately 5 units was fabricated and procured. Additional samples will be assembled and tested should there be significant discrepancies in performance between the first 2. More samples would be required for a production ready product.

2.1.4. Reporting Problems - Corrective Action

Problems that arise during testing/validation will be shared with my sponsors (mentors). Corrective actions, if required, will be developed and presented for concurrence.

2.2. Test Procedure & Timeline

The test procedures to be utilized are outlined in2.1 for each test. All of the testing will be performed by the student. Help with the equipment and set-ups, as well as oversight will be provided by Anaren technicians familiar with the equipment to be used.

Testing is expected to take place over 1-2 days for the first piece, and approximately 3-4 hours for each additional piece tested. Testing may be performed in the evening or on the weekend.

No additional preparation is required (e.g. software, specialized signal generation, etc.), other than the finalized procedures and data sheets to be filled in.

3. DESIGN VERIFICATION

3.1. Logistics

Results of the testing will be recorded on the data sheets of Appendix 1. Additional data including swept plots or screen shots will be printed. If possible electronic data will be stored as well. All of the data, as well as any additional measurements performed to facilitate troubleshooting will be kept in a notebook. Excel files will be used to manipulate raw data and summarize results.

3.2. Analysis of Data - Design Summary

To be completed after testing. All results will be compared to the specification and simulations. All discrepancies will be discussed and possible causes identified. Some of these may be investigated further if time permits.

3.3. Conclusion / Design Summary

3.3.1. Lab Demo

3.3.2. Meeting with Sponsor

APPENDIX 1: Test Data Templates

Attach plot of swept fundamental IF output (Note - this data will be un-calibrated)

Attach plots of Conversion Loss generated by the Excel workbook

APPENDIX 1: Test Data Templates

Attach plot of Conversion Loss vs. RF Input Power (generated by Excel workbook)

APPENDIX 1: Test Data Templates

Attach swept data screen dump for each measurement

Attach swept data screen dump for each measurement

Single-Balanced Mixer Test Plan & Test ResultsPage 19

ItemMajor Sub-Systems / Features / Functions

Block

Diagram

Ref.

1RF Splitting Element4

2Series Schottky Diode Pair5

3Low-Pass Filter6

4Quarter-Wave Shorted Stub (RF Choke)3

5Quarter-Wave Impedance Transformer10

6RF Bypass11

7RF SMA Connectors8

8RF Substrate / Interconnect Transmission Lines9

SpecSpec DescriptionTestEquipment Required

S1RF Frequency

S2LO Frequency

S3IF Frequency

S4Conversion Loss

Conversion

Loss

2 RF Signal Sources, Spectrum Analyzer,

Power Meter

S5RF/IF Isolation

RF to IF

Isolation

2 RF Signal Sources, Spectrum Analyzer

S6LO/IF Isolation

LO to IF

Isolation

2 RF Signal Sources, Spectrum Analyzer

S7Minimum LO Power

S8Maximum RF Power

S9

Minimum 1dB

Compression

1dB

Compression

2 RF Signal Sources, Power Meter,

Spectrum Analyzer

S10RF VSWR

S11LO VSWR

S12IF VSWR

N/ANone

Spurious

Outputs

2 RF Signal Sources, Spectrum Analyzer

VSWR (Return

Loss)

Will be verified as part of the other tests listed.

Will be verified as part of the tests listed.

Signal Source (LO), Network Analyzer,

50 ohm terminations

EquipmentMfgModel

RF Signal Generator 1 (RF)Agilent (HP)HP8646BC

RF Signal Generator 2 (LO)Agilent (HP)HP8657B

Power MeterAgilent (HP)E4417A

Power Meter SensorAgilent (HP)E9326A

RF Spectrum AnalyzerAgilent (HP)N9010A

List of Test Equipment

SpecSpec DescriptionTest No (s)Functions

S1RF Frequency1 thru 61

S2LO Frequency1 thru 62

S3IF Frequency1 thru 67

S4Conversion Loss11,7,10,11

S5RF/IF Isolation21,2,4,5

S6LO/IF Isolation32,4,5,7

S7Minimum LO Power2, 3, 4, 52

S8Maximum RF Power1, 2, 41

S9

Minimum 1dB

Compression

41,7

S10RF VSWR51,2,5,8

S11LO VSWR52,5,8

S12IF VSWR5

2,5,6,7,8,

10,11

N/ASpurious Outputs61,2,4,5,6,7

Freq.0.8 to 1.2 GHz

Power-10 dBm

Freq.DC - 5 GHz

Freq.1.0 GHzFigure 1: Conversion Loss Measurement

Power+10 dBmTest Set-up

RF Signal Generator 1 (RF)RF Signal Generator 2 (LO)Spectrum AnalyzerRF InputMixer (UUT)IF OutLO InputPower MeterSensor

InputParameterMinMaxStep# Points

Frequency1.0 GHz1.0 GHz01

Power Level+10 dBm+10 dBm01

Frequency**0.8 GHz1.2 GHz0.025 GHz17

Power Level-10 dBm-10 dBm01

** The 9th Frequency (1.000 GHz will actually be 1.005 Ghz)

LO Input

RF Input

Test Conditions: Test 1 - Conversion Loss

Freq.DC - 5 GHz

Freq.1.0 GHzFigure 2: RF to IF Isolation Measurement

Power+10 dBmTest Set-up

RF Signal Generator 2 (LO)Spectrum AnalyzerRF InputMixer (UUT)IF OutLO InputRF Signal Generator 1 (RF)

InputParameter

Frequency

Power Level

Power Level

LO Input

RF Input

Test

Frequencies

Value

1.0 GHz

+10 dBm

-10 dBm

Test Conditions: Test 2 - RF to IF Isolation

0.800 GHz

0.900 GHz

1.005 GHz

1.100 GHz

1.200 GHz

Freq.1.0 GHzFreq.DC - 5 GHz

Power+10 dBm

Figure 3: LO to IF Isolation Measurement

Test Set-up

RF Signal Generator 2 (LO)Spectrum AnalyzerRF InputMixer (UUT)IF OutLO Input50Ω

InputParameterMinMaxStep# Points

Frequency1.0 GHz1.0 GHz01

Power Level+10 dBm+10 dBm01

Test Conditions: Test 3 - LO to IF Isolation

LO Input

Freq.0.8 to 1.2 GHz

Power-10 to +15 dBm

Freq.DC - 5 GHz

Freq.1.0 GHzFigure 4: 1dB Compression Point

Power+10 dBmTest Set-up

RF Signal Generator 1 (RF)RF Signal Generator 2 (LO)Spectrum AnalyzerRF InputMixer (UUT)IF OutLO Input

InputParameter

Frequency

Power Level

Power Level

Value

LO Input

1.0 GHz

+10 dBm

RF Input

Test

Frequencies

0.8 GHz

0.9 GHz

1.005 GHz

1.1 GHz

1.2 GHz

-10 dBm to TBD

Test Conditions: Test 4 - 1dB Compression

A

Test PortABC

Freq.DC - 5 GHzRF Input

IF Out

LO Input

CIF Out

IF OutIF OutRF InputLO Input

Freq.1.0 GHz B (Qty 2)

Power+10 dBm

Figure 5: VSWR (Return Loss) Measurements

Test Set-up

Connections

LO InputLO InputN/A

N/ARF InputRF Input

RF Signal Generator 2 (LO)Network AnalyzerRF InputMixer (UUT)IF OutLO Input50Ω

InputParameterMinMaxStep# Points

Frequency0.5 GHz1.5 GHzSweptSwept

Power LevelN/AN/AN/AN/A

Frequency0.5 GHz1.5 GHzSweptSwept

Power LevelN/AN/AN/AN/A

Frequency300 KHz500 MHzSweptSwept

Power LevelN/AN/AN/AN/A

Test Conditions: Test 5 - VSWR (Return Loss)

LO Input

RF Input

LO Output

Freq.0.8 to 1.2 GHz

Power-10 dBm

Freq.DC - 5 GHz

Freq.1.0 GHzFigure 6: Spurious Output Measurement

Power+10 dBmTest Set-up

RF Signal Generator 1 (RF)RF Signal Generator 2 (LO)Spectrum AnalyzerRF InputMixer (UUT)IF OutLO Input

InputParameterMinMaxStep# Points

Frequency1.0 GHz1.0 GHz01

Power Level+10 dBm+10 dBm01

Frequency**0.8 GHz1.2 GHz0.025 GHz17

Power Level-10 dBm-10 dBm01

** The 9th Frequency (1.000 GHz will actually be 1.005 Ghz)

Test Conditions: Test 6 - Spurious Outputs

LO Input

RF Input

Date Completed:Unit Number

Tested By:

10.800-10.000.200 0.8000.200

20.825-10.000.175 0.8250.175

30.850-10.000.150 0.8500.150

40.875-10.000.125 0.8750.125

50.900-10.000.100 0.9000.100

60.925-10.000.075 0.9250.075

70.950-10.000.050 0.9500.050

80.975-10.000.025 0.9750.025

91.005-10.000.005 1.0050.005

101.025-10.000.025 1.0250.025

111.050-10.000.050 1.0500.050

121.075-10.000.075 1.0750.075

131.100-10.000.100 1.1000.100

141.125-10.000.125 1.1250.125

151.150-10.000.150 1.1500.150

161.175-10.000.175 1.1750.175

171.200-10.000.200 1.2000.200

Test

Step

Conversion Loss Calculation

Test 1: Conversion Loss

IF

(GHz)

Sp An

Level

(dBm)

Corr

Factor

(dB)

Corrected

Conversion

Loss (dB)

IF

(GHz)

Pwr Mtr

Level

(dBm)

Sp An

Level

(dBm)

IF Corr

Factor

(dB)

RF

(GHz)

RF

(GHz)

RF Gen

Level

(dbm)

RF Gen SettingIF Power Level Calibration

Pwr Mtr

Level

(dBm)

Date Completed:

Tested By:

Unit Number:

10.8000.200-10.0

20.9000.100-10.0

31.0050.005-10.0

41.1000.100-10.0

51.2000.200-10.0

Test 2: RF to IF Isolation

RF (GHz)IF (GHz)

RF Input

Level

(dBm)

Test Step

Isolation DATA

RF Level

at IF Out

(dBm)

RF-IF

Isolation

(dB)

Test 3: LO to IF Isolation

Date Completed:

Tested By:

Unit Number:

Input to Unit (LO)10dBm

Enter LO Ouput Power at IF PortdBm

Calculated LO to RF Isolation dB

LO to IF Isolation dB

Date Completed:

Tested By:

Unit Number:

0.8 GHz0.9 GHz1.005 GHz1.1 GHz1.2 GHz0.8 GHz0.9 GHz1.005 GHz1.1 GHz1.2 GHz

-10

-9

-8

-7

-6

-5

-4

-3

-2

-1

0

+1

+2

+3

+4

+5

+6

+7

+8

+9

+10

+11

+12

+13

+14

Approximate 1dB Comp Pt (dBm)

IF Output Level (dbM) for IF Frequency - MeasuredApproximate Conversion Loss (dB) - Calculated

RF Input

Level (dBm)

Test 4: 1dB Compression Point

Test 5: VWSR (Return Loss)

Date Completed:

Tested By:

Unit Number:

LO Input Return Loss dB VSWR

RF Input Return Loss dB VSWR

IF Output Return Loss dB VSWR

Date Completed:

Tested By:

Unit Number

10.8000.200

20.8250.175

30.8500.150

40.8750.125

50.9000.100

60.9250.075

70.9500.050

80.9750.025

91.0000.000

101.0250.025

111.0500.050

121.0750.075

131.1000.100

141.1250.125

151.1500.150

161.1750.175

171.2000.200

Level

(dBc)

Level

(dBm)

Level

(dBc)

Freq

(GHz)

Level

(dBm)

RF Level

Highest Spur Level

MeasuredMeasured

Measured

Level

(dBm)

Level

(dBc)

Test 6: Spurious Output (Output Spectrum)

Test

Step

RF Input

(GHz)

IF Output Level

(from Conv Loss Meas)

LO Level

Freq

(GHz)

Level

(dBm)