Retractable antenna assembly with connector

Details Retractable antenna assembly with connector Retractable antenna assembly with connector

1992-12-08

1994-04-12

Hajec, Donald T.

Communications: radio wave antennas

Antennas

Rod type

343702, H01Q 110, H01Q 124

Patent

active

053029631

ABSTRACT:
A retractable antenna assembly with connector (200) allows communication devices that require the use of more than one type of antenna element (114), to easily store the normally used antenna element (114) inside of a housing (134) which is part of the antenna assembly (200). Once inside the housing (134), the antenna element (114) forms a half wave cavity that has a high impedance at the operating frequency of the communication device (302), thereby operatively decoupling the antenna element (114) from the radio frequency path. Once inside of housing (134), antenna element (114) forms part of a coaxial connector (112) with the top portion (116) of antenna element (114) forming the center conductor of the coaxial connector (112). Thereby allowing for an external antenna element (308) to be attached to the communication device (302).

REFERENCES:
patent: 2491629 (1949-12-01), Vernier et al.
patent: 3735932 (1956-02-01), Textrom et al.
patent: 4523197 (1985-06-01), Imazeki et al.
patent: 4525718 (1985-06-01), Imazeki et al.
patent: 4611213 (1986-09-01), Johnson et al.
patent: 5072230 (1991-12-01), Taniyoshi et al.
patent: 5079558 (1992-01-01), Koike

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