Telecommunications – Receiver or analog modulated signal frequency converter – With wave collector
Patent
1980-07-07
1984-01-31
Chin, Tommy P.
Telecommunications
Receiver or analog modulated signal frequency converter
With wave collector
455293, 455313, 455323, 343840, H04B 122
Patent
active
044294174
ABSTRACT:
A microwave antenna has associated therewith an integrated amplifier and frequency converter circuit for operating frequencies of from 1 Ghz to 40 Ghz. The circuit may be tuned by variation of a voltage regulated supply which is impressed onto the center conductor of a coaxial output cable. The frequency selective tuning elements are strip lines etched on one side of a double sided printed circuit board. The receiver is designed as an integral part of a quarter spherical reflector which illuminates a resonant cavity in which a stub antenna is mounted. The stub antenna is also directly connected to an input transistor of the amplifier/converter circuit.
REFERENCES:
patent: 2603743 (1952-07-01), Lawson
patent: 3120640 (1964-02-01), Midlock
patent: 3659204 (1972-04-01), Hufford
patent: 3671868 (1972-06-01), Sanders
patent: 3735267 (1973-05-01), Napoli
patent: 3823380 (1974-07-01), Young
patent: 4005433 (1977-01-01), Tsuda
Hewlett-Packard Journal, Mar. 1973, Synthesized Signal Generation to 1.3 GHZ, by R. Hassun, et al., pp. 11-19.
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