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NRD-GuideOver 1Gbps Wireless at 60 Ghz
Tsukasa Yoneyama
Environmental Information Engineering
Tohoku Institute of Technology
Key Word : NRD-Guide ( Nonradiative Dielectric Waveguide )
(a) Below Cutoff (b) Still Below Cutoff (c) Nonradaiative
a
b
EEE
a a
Operation Principle of NRD-Guide
a<λ/2
Waveguides for Respective Frequency Regions
Optical Fiber for
Light Waves
Microstripline forMicrowaves
NRD-Guide forMillimeter-Waves
Transmitted Signal
Received Signal
Transmitted Signal
Received Signal
TransmittedSignal
ReceivedSignal
TransmittedSignal
ReceivedSignal
Transmitted Signal
Received Signal
LNA
PA
LNA
PA
LNA
PA
LNA
PA
Transmitted Signal
Received Signal
TransmittedSignal
ReceivedSignal
TransmittedSignal
ReceivedSignal
(a) Conventional Type of Transceiver
(b) NRD-Guide Transceiver
Transmitter
Receiver Antenna
3dB Coupler
Gunn Diode
NRD-Guide Transceiver Using Switch
Switch
SB Diodes
Typical Performance of Transceiver
Bit Error Rate 1.5Gbps ,PRBS15, Time Duration:30min.
Transmitted and ReceivedPulse Trains( 1.25Gbps)
Image of HomeLink
Broadcasting Satellite
Communication
Satellite
Terrestrial
Broadcasting
(V/UHF)
Liquid Crystal
Display
HDTVProjector
NRD GuideTransceiver
Conclusions
1. Small volume, a wide variety of products is possible with NRD-guide.
2. Data transmission rate of 1.5Gbps has been realized with NRD-guide.
3. HDTV transmission has been demonstrated with NRD-guide.
4. Simple, compact, high-performance transceiver has been fabricated with NRD-guide.
5. Replacement of MMIC is possible with NRD-guide.
6. Market appearance of NRD-guide will be soon.