1. NRD-Guide Over 1Gbps Wireless at 60 Ghz
Key Word ： NRD-Guide（Nonradiative Dielectric Waveguide）
Tsukasa Yoneyama
Environmental Information Engineering
Tohoku Institute of Technology

2. Typical Printed Transmission Lines
Microstrip Line
Coplanar Waveguide
Slot Line
Typical Printed Transmission Lines

4. Operation Principle of NRD-Guideb a
a<λ/2 a a
(a) Below Cutoff
(b) Still Below Cutoff
(c) Nonradaiative
Operation Principle of NRD-Guide

5. Nonradiative Dielectric Waveguide

6. Transmission Loss of NRD-Guide

8. NRD-Guide Bend with the Minimum Radius
of Curvature at 50GHz

9. Waveguides for Respective Frequency Regions
NRD-Guide for
Millimeter-Waves
Microstripline for
Microwaves
Optical Fiber for
Light Waves
Waveguides for Respective Frequency Regions

10. (a) Conventional Type of Transceiver
Received
Received
Received
Received
Signal
Signal
Signal
Signal
LNA PA
Transmitted Signal
Transmitted Signal
Transmitted Signal
Transmitted Signal
(a)　Conventional Type of Transceiver
Received
Received
Received
Received
Transmitted
Transmitted
Transmitted
Transmitted
Signal
Signal
Signal
Signal
Signal
Signal
Signal
Signal
(b)　NRD-Guide Transceiver

11. NRD-Guide Transceiver Using Switch
Transmitter
Receiver
Antenna
3dB Coupler
Gunn Diode
Switch
SB Diodes
NRD-Guide Transceiver Using Switch

12. Switchless NRD-Guide Transceiver
Tx Signal
Gunn Diode
3dB
Coupler
　　　　Antenna
SB Diodes
IF Signal
Switchless NRD-Guide Transceiver

13. Switchless Transceiver
New Type of NRD-Guide
Switchless Transceiver
Old Type of NRD-guide
Transceiver with Circulator

14. Typical Performance of Transceiver
Transmitted and Received
Pulse Trains（1.25Gbps）
Bit Error Rate Gbps ,PRBS15,
　Time Duration:30min.

15. Image of HomeLink Broadcasting Satellite Communication Satellite
Terrestrial
Broadcasting
(V/UHF)
Liquid Crystal
Display
HDTV
Projector
NRD Guide
Transceiver
Image of HomeLink

16. 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.