Planar substrate ferrite/diode phase shifter for phased array ap

Details Planar substrate ferrite/diode phase shifter for phased array ap Planar substrate ferrite/diode phase shifter for phased array ap

1991-03-14

1992-09-01

Gensler, Paul

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a steerable array

333 241, 333164, H01Q 324, H01P 1185, H01P 1195

Patent

active

051443198

ABSTRACT:
An RF phase shifter combines a non-reciprocal ferrite 180.degree. stage with one or more reciprocal diode phase shifting stages to produce an essentially planar phase shifter that is ultra small, efficient and lightweight. Such phase shifter elements may be used in phased arrays to produce an array offering major improvements over existing planar substrate all diode phase shifters while maintaining the phase gradient between array elements and without switching the ferrite shifter between the transmit and receive modes.

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"A Diode Phase Shifter for Array Antennas", J. F. White, 1964 PTGMTT INTERNATIONAL SYMPOSIUM, May 1964, pp. 181-185.
PIN DIODE DESIGNERS' HANDBOOK AND CATALOG, Unitrode, PD-500B, Nov. 15, 1982, VI. Applications, pp. 99-101.

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