Wave transmission lines and networks – Coupling networks – Delay lines including long line elements
Patent
1987-08-10
1988-08-16
Nussbaum, Marvin L.
Wave transmission lines and networks
Coupling networks
Delay lines including long line elements
333103, 333139, 333156, H01P 1185
Patent
active
047647400
ABSTRACT:
The present invention relates to a reflection diode phase shifter that achieves amplitude equality between phase shifts of incident energy. Amplitude equality is achieved by placing a resistor R to ground in parallel with the transmission lines connecting a four-port coupler to symmetric reflection terminators having an impedance that is varied by a diode. The resistor is placed at a point on the transmission line having the lowest voltage when the greatest power loss is realized by the phase shifter.
REFERENCES:
patent: 4105959 (1978-08-01), Stachejko
patent: 4423393 (1983-12-01), Freitag et al.
Hieken Charles
Micronav Ltd.
Nussbaum Marvin L.
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