Wave transmission lines and networks – Plural channel systems – Having branched circuits
Patent
1994-08-30
1997-01-14
Lee, Benny T.
Wave transmission lines and networks
Plural channel systems
Having branched circuits
333104, 333202, 455 78, 4552771, H01P 115
Patent
active
055943942
ABSTRACT:
An antenna switching device of the present invention includes: a transmitting terminal for receiving a transmitting signal; a first antenna terminal connected to a first antenna; a second antenna terminal connected to a second antenna; a receiving terminal for outputting receiving signals received at the first antenna terminal and the second antenna terminal; a selecting unit for selecting one mode among a first mode for outputting a signal corresponding to the transmitting signal to the first antenna terminal, a second mode for outputting the receiving signal received at the first antenna to the receiving terminal, and a third mode for outputting the receiving signal received at the second antenna to the receiving terminal.
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Ishizaki Toshio
Kosugi Hiroaki
Matsumura Tsutomu
Morinaga Youichi
Nakakubo Hideaki
Bettendorf Justin P.
Lee Benny T.
Matsushita Electric - Industrial Co., Ltd.
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