Communications: radio wave antennas – Antennas – With radio cabinet
Patent
1991-03-18
1992-08-04
Wimer, Michael C.
Communications: radio wave antennas
Antennas
With radio cabinet
343900, 343901, H01Q 124
Patent
active
051363020
ABSTRACT:
A telescoping antenna structure suitable for use in a portable transceiver for increasing the level of radiated or received r-f energy while in a collapsed position and also obtaining the maximum permitted level of radiated r-f energy while in an extended position. The increase in r-f energy in the antenna while in the collapsed position is obtained through use of a projectable sliding member affixed to the antenna which comes in contact with and makes electrical changes to antenna tuning circuitry when the antenna is adjusted from the extended position to the collapsed position.
REFERENCES:
patent: 4860024 (1989-08-01), Egashira
patent: 4862182 (1989-08-01), Egashira
Chin Melissa C.
Evans James G.
Orlando Denis P.
AT&T Bell Laboratories
Le Hoang-anh
Williamson Samuel R.
Wimer Michael C.
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