Extendible whip antenna

Details Extendible whip antenna Extendible whip antenna

1994-11-28

1995-08-29

Hajec, Donald

Communications: radio wave antennas

Antennas

With radio cabinet

343895, 343901, H01Q 124

Patent

active

054464692

ABSTRACT:
An extendible whip antenna suitable for a hand-held two-way radio apparatus having a wide frequency band and a high sensitivity is disclosed, in which when it is used for communication, a 1/2-wave length whip antenna is extended outside of a case and a stopper conductor thereof is engaged with a holder conductor so that it is connected with a radio circuit through a matching circuit together with a 1/2-wave length helical antenna element.

REFERENCES:
patent: 4121218 (1978-10-01), Irwin et al.
patent: 4725845 (1988-02-01), Phillips
patent: 4868576 (1989-09-01), Johnson, Jr.
patent: 5317325 (1994-05-01), Bottomley

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