High speed octave band phase shifter

Details High speed octave band phase shifter High speed octave band phase shifter

1982-02-04

1983-12-27

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Delay lines including long line elements

333139, 333161, H01P 1185, H01P 512, H01P 504

Patent

active

044233930

ABSTRACT:
A high speed reflectance type phase shifter is described incorporating a wide bandwidth coupler having four ports, two of the ports having a high speed diode coupled thereacross a resistor coupled in shunt across each diode to provide power dissipation at times the diodes are non-conducting and a current driver to provide bias current to the diodes. The invention provides constant insertion loss through the phase shifter during the on state and off state of the diodes corresponding to the two phase conditions of the output signal without affecting bandwidth.

REFERENCES:
patent: 4105959 (1978-08-01), Stachejko
patent: 4205282 (1980-05-01), Gipprich

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