Telecommunications – Transmitter and receiver at same station – With a common signal processing stage
Patent
1986-08-19
1989-05-09
Griffin, Robert L.
Telecommunications
Transmitter and receiver at same station
With a common signal processing stage
455133, 455277, H04B 106
Patent
active
048295914
ABSTRACT:
A portable transceiver has a narrow band square microstrip antenna connected to a first radio receiver, a wideband sleeve or whip antenna connected to an associated duplexer, and a second radio receiver and a transmitter both connected to the wideband antenna via the duplexer. The square microstrip antenna if formed of a conductive emission plate and a conductive ground plate joined by a conductive connector plate. A housing enclosing the transceiver has an earphone and microphone set in its front side, the microstrip antenna under its back side, and the wideband sleeve or whip antenna mounted upright on its top side.
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Asazawa Hiroshi
Hashimoto Kazuya
Griffin Robert L.
Kuntz Curtis
NEC Corporation
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