Telecommunications – Receiver or analog modulated signal frequency converter – Frequency modifying or conversion
Patent
1994-12-09
1997-05-13
Pascal, Leslie
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency modifying or conversion
343756, 455333, H04B 118
Patent
active
056302266
ABSTRACT:
A low-noise-block downconverter (LNB) for use with flat antennas receiving dual polarized electromagnetic waves includes a body case mounted to a rear side surface of the flat antenna, the body case having two wave guide input ports corresponding to wave guide apertures of the antenna and enclosing a selective device alternatively allowing either one of two outputs corresponding to two different type polarized electromagnetic waves received.
REFERENCES:
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patent: 5125109 (1992-06-01), Geller
patent: 5323064 (1994-06-01), Bacon
patent: 5471664 (1995-11-01), Kim
Ao Naoki
Kanda Minoru
Kimura Yoshitaka
Komatsu Mikio
Masamoto Kyoji
Matsushita Electric & Works Ltd.
Pascal Leslie
LandOfFree
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