Mobile communication terminal having extendable antenna

Details Mobile communication terminal having extendable antenna Mobile communication terminal having extendable antenna

1995-03-29

1996-04-30

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at same station

With a common signal processing stage

455 90, 455269, 343702, 343878, H04B 138, H01Q 124

Patent

active

055133835

ABSTRACT:
A mobile communication terminal or telephone comprising a handheld main housing incorporating a digital keypad, a speaker and a microphone, and having a planar radiator antenna. The antenna is hingedly-attached to an extension arm element which, in turn, is hingedly-attached at the top of the main housing. During use, the antenna is pivoted above and away from the head of the user by a sufficient distance to significantly reduce or remove the exposure of the user to transmitted RF power of sufficient density to pose a health danger.

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patent: 5170173 (1992-12-01), Krenz et al.
patent: 5204687 (1993-04-01), Elliott et al.

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