Radio with antenna connector having high and low impedance point

Details Radio with antenna connector having high and low impedance point Radio with antenna connector having high and low impedance point

1995-01-04

1997-08-19

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

455129, 455280, 455 97, 439218, 439916, 343702, 343906, 343860, H04B 0138

Patent

active

056598890

ABSTRACT:
A radio transceiver of the present invention includes a transmission line within a housing. The transmission line is comprised of a hollow center conductor and an outer conductor, both connected to a transceiver circuit. The transmission line is also connected to a low impedance connector which is coupled to the housing. A retractable 1/2 wave antenna having an integral matching section will be matched to a transceiver circuit when extended. When the antenna is retracted, the antenna is retracted within the center conductor and acts as a 1/4 wave antenna and will still be matched to the transceiver circuit.

REFERENCES:
patent: 5245350 (1993-09-01), Sroka
patent: 5353036 (1994-10-01), Baldry
patent: 5526605 (1996-05-01), Koike

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