Circuit arrangement for mutually decoupled connecting of plural

Details Circuit arrangement for mutually decoupled connecting of plural Circuit arrangement for mutually decoupled connecting of plural

1977-08-29

1979-04-03

Smith, Alfred E.

Communications: radio wave antennas

Antennas

With coupling network or impedance in the leadin

343786, 343853, H01Q 1300

Patent

active

041480384

ABSTRACT:
A non-directional transmitting system non-directionally and simultaneously transmits four signals of different but closely spaced frequency. The system comprises four directional antennas, each oriented to face in a different respective direction, each direction being spaced 90.degree. from the next one. Each directional antenna simultaneously transmits one fourth of the power of each one of the four signals, making for an overall non-directional effect. The four signal sources are coupled to the four directional antennas by way of four 3-dB couplers in such a way that substantially all the power of each signal is transmitted equally to the four directional antennas, avoiding the power loss customary when plural signal sources are coupled to a common non-directional antenna using 3-dB couplers.

REFERENCES:
patent: 3295134 (1966-12-01), Lowe
patent: 3518695 (1970-06-01), Schroeder

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