Wave transmission lines and networks – Long line elements and components – Waveguide elements and components
Patent
1983-06-20
1986-02-04
LaRoche, Eugene R.
Wave transmission lines and networks
Long line elements and components
Waveguide elements and components
333262, 357 15, H01P 115
Patent
active
045688974
ABSTRACT:
A millimeter-wave cut-off switch in a dielectric waveguide having a semi-insulating core and a semi-conducting epitaxial layer. A controller affixed to the epitaxial layer is alternately switched to vary the conductivity of the epitaxial layer thereby influencing wave propagation in the waveguide. When the waveguide is properly dimensioned such that the operating frequency lies in the high-loss section near the cut-off frequency on the loss vs. frequency characteristic curve, an applied reverse bias voltage produces a switching function in the loss characteristics associated with the wave propagating in the guide thereby resulting in low-loss propagation.
REFERENCES:
patent: 4245230 (1981-01-01), Kwok et al.
Fleming, P. L. et al., "GaAs SAMP Device for Ka-Band Switching", Conf., 1 IEEE MIT-s Int'l Microwave Symposium Digest, Orlando FL, Apr. 30-May 2, 1979.
Mariani Elio A.
Stern Richard A.
Fattibene Paul A.
Lane Anthony T.
LaRoche Eugene R.
Lee Benny T.
Murray Jeremiah G.
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