Vector modulator phase shifter

Details Vector modulator phase shifter Vector modulator phase shifter

1988-08-23

1990-12-11

Moskowitz, Nelson

Wave transmission lines and networks

Coupling networks

Delay lines including long line elements

333 81R, 333156, 333157, H01P 1165, H01P 118

Patent

active

049773828

ABSTRACT:
A monolithic microwave integrated circuit (MMIC) phase shifter is implemented in push-pull configuration with the quadrant selection and vector modulation functions combined. These functions are provided by four sets of adjustable gate-width dual-gate FETs and a pair of lumped element filter networks with a relative differential phase shift of 90.degree..

REFERENCES:
patent: 4398161 (1983-08-01), Lamb et al.
patent: 4581595 (1986-04-01), Siligi
patent: 4599585 (1986-07-01), Vorhaus et al.
patent: 4605912 (1986-08-01), Naster et al.
patent: 4638269 (1987-01-01), Dawson et al.
Naster et al.--"Affordable MMIC Designs for Phased Arrays", Microwave Journal, Mar. 1987; pp. 141-142 and 144-147.
Chen et al., "A GaAs Multi-Band Digitally-Controlled 0.degree.-360.degree. Phase Shifter", 1985 GaAs IC Symposium Digest of Technical Papers, IEEE, pp. 125-128.
Schindler et al., "Monolithic 6-18 GHz 3 Bit Phase Shifter", 1985 GaAs IC Symposium Digest of Technical Papers, IEEE, pp. 129-132.
Selin, "Continuously Variable L-Band Monolithic GaAs Phase Shifter", Microwave Journal, Sep. 1987, pp. 211-218.
Smith, "N-Bit L-Band Phase Shifters for Phased Arrays", 1983 IEEE MTT-S Digest, pp. 337-339.

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