Apparatus and method for controlling crosspolarization of signal

Details Apparatus and method for controlling crosspolarization of signal Apparatus and method for controlling crosspolarization of signal

1978-05-31

1981-09-29

Bookbinder, Marc E.

Telecommunications

Carrier wave repeater or relay system

Portable or mobile repeater

343100PE, 343100ST, 370 6, 455 52, 455 63, 455295, 455304, H04B 7155, H04B 7185, H04B 1500

Patent

active

042926858

ABSTRACT:
Apparatus and method for controlling the crosspolarization of signals in a satellite communications, frequency reuse system. Each earth station in the system includes one crosscoupling network that compensates for the crosspolarization of signals transmitted by such earth station uplink to the satellite due to the propagative medium around such earth station, and an adaptive feedback control system having another crosscoupling network that compensates for the crosspolarization of signals received from the other earth stations due to such propagative medium around such earth station.

REFERENCES:
patent: 3986123 (1976-10-01), Tirro et al.
patent: 4087818 (1978-05-01), Kreutel, Jr.
patent: 4090137 (1978-05-01), Soma et al.
patent: 4146838 (1979-03-01), Takada
patent: 4146893 (1979-03-01), Inagaki et al.
Cooper, C. P., "Methods of Adaptive Cancellation for Dual Polarization Satellite Systems," Marconi Review, vol. 39, No. 200, pp. 1-24, First Quarter 1976.

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