Automatically adjustable delay circuit having adjustable diode m

Details Automatically adjustable delay circuit having adjustable diode m Automatically adjustable delay circuit having adjustable diode m

1983-09-29

1986-08-05

LaRoche, Eugene R.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

333164, 333161, 357 56, 357 14, H03H 938, H03H 1120

Patent

active

046045910

ABSTRACT:
A delay line circuit provides variable delay and phase shift to electric signals propagating along the delay circuit. The circuit is formed of a set of varactors constructed either as varactor chips or as a set of mesas upstanding from a gallium arsenide substrate. A ground plane interconnects bottom terminals of the varactor chips while a strip line conductor interconnects top terminals of the varactor chips. In the case of the mesa configuration, a metallized layer covers the regions between the mesas without contacting the base portions of the mesas. The strip line conductor makes contact with the respective mesas via a set of metallic posts upstanding from respective ones of the mesas. Dielectric material may be inserted between the strip line conductor and the metallic layer to position the strip line conductor relative to the metallic layer, which layer serves as a ground plane in a transmission line comprising the strip line conductor.

REFERENCES:
patent: 3013224 (1961-12-01), King
patent: 3246265 (1966-04-01), Smith-Vaniz
patent: 3320497 (1967-05-01), Neuf
patent: 4160992 (1979-07-01), Adlerstein
patent: 4246596 (1981-01-01), Iwasaki
patent: 4341999 (1982-07-01), Rudish et al.

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