Signal distribution system

Details Signal distribution system Signal distribution system

1981-11-03

1985-10-22

Blum, Theodore M.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

455273, 455 6, H01Q 322, H01Q 324

Patent

active

045491852

ABSTRACT:
A system and method is disclosed for using a combining network to combine antenna beams from different frequency bands so that the same port on the signal distribution system can be used for two or more beams produced by a multidirectional antennae array so that the size of the signal distribution system required is reduced. The combining network uses a series of multiplexing filters which maintain low loss within the antenna frequency bands and a good impedance match at the output port over the frequency range of the combined beams. Only the beams are combined which are either oriented in a different direction or which are not adjacent in frequency so that the problem of signal cancellation at cross-over frequencies between adjacent bands is eliminated.

REFERENCES:
patent: 3151326 (1964-09-01), Ohm
patent: 3440542 (1969-04-01), Gautney
patent: 3986124 (1976-10-01), Mitchell, Jr.
patent: 4074266 (1978-02-01), Yokoi et al.
patent: 4176322 (1979-11-01), Kommrusch
patent: 4189733 (1980-02-01), Malm
patent: 4276653 (1981-06-01), Aarsen et al.
patent: 4369520 (1983-01-01), Cerny, Jr. et al.

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