Personal paging receiver with swivel clip and distributed antenn

Details Personal paging receiver with swivel clip and distributed antenn Personal paging receiver with swivel clip and distributed antenn

1974-09-18

1976-05-11

Safourek, Benedict V.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

325361, 343881, 224 5H, H04B 108

Patent

active

039567010

ABSTRACT:
A personal paging device is housed in a case which has one dimension (length) longer than its width or thickness, and a clip is affixed to a side on a swivel between the ends of the length dimension, which allows the device to be worn on the person in a vertical or a horizontal posture. A radio receiving antenna is carried on a flexible dielectric sheet within the casing, and radio components are enclosed within that sheet. A pair of orthogonally-related antenna loops can be provided on the dielectric sheet. The swivel clip can be arranged to cooperate with these or other antennas in a circular-polarization antenna system, such that in one orientation one or the other of the antennas will be detuned.

REFERENCES:
patent: 2128554 (1938-08-01), Baylis
patent: 2508918 (1950-05-01), Hines Jr.
patent: 2883523 (1959-04-01), Meserow
patent: 3049711 (1962-08-01), Hooper
patent: 3577196 (1971-05-01), Pereda
patent: 3631994 (1972-01-01), Mackzum Jr.
patent: 3721989 (1973-03-01), Christensen

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