Combining antenna element signals

Details Combining antenna element signals Combining antenna element signals

1992-03-19

1996-01-09

Pham, Chi H.

Telecommunications

Receiver or analog modulated signal frequency converter

With wave collector

455143, 4552771, 455289, 455291, 343712, H04B 116

Patent

active

054836930

ABSTRACT:
A vehicle radio receiver circuit includes two antennas for mounting on the vehicle. The antennas are significantly less than one quarter of a wavelength in length at the desired frequency of operation, and the outputs of the antenna elements are coupled to two inputs of an FM circuit and two inputs of an AM circuit, which includes summing circuitry. The FM circuit has an FM output for providing a received FM signal, and the AM circuit has an output for providing an AM signal that includes a sum of signals derived from the outputs of the antennas.

REFERENCES:
patent: 2513485 (1950-07-01), Herrick
patent: 2653227 (1953-09-01), Onder
patent: 2685643 (1954-08-01), Fisk et al.
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patent: 3986124 (1976-10-01), Mitchell, Jr.
patent: 4006421 (1977-02-01), Mermoz
patent: 4041496 (1977-08-01), Norris
patent: 4748682 (1988-05-01), Fukae et al.
patent: 4850037 (1989-07-01), Bochmann
patent: 5089829 (1992-02-01), Haruyama et al.

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