Cellular telephone coupling network

Details Cellular telephone coupling network Cellular telephone coupling network

1994-05-20

1995-10-31

Hajec, Donald

Communications: radio wave antennas

Antennas

With vehicle

343850, 343860, 333 24C, H01Q 132

Patent

active

054634059

ABSTRACT:
A cellular telephone coupling network (12) includes a generally rigid dielectric substrate (50) having a pair of tuning stubs (64, 66) formed thereon by confronting thin conductive strips (68, 70) and (72, 74) positioned on opposite face surfaces (60, 62) of the substrate (50). A unique conductive strip pattern is provided for the coupling network (12) which permits broad tunability while allowing the coupling network to be fit within the confines of a small plastic housing (32). To this end, the stubs (64, 66) are shaped as generally open, rectangular loops comprising a series of straight leg sections (94, 96, 102, 106) connected end to end around the edges of the substrate (50) with the stub distal ends (108, 112) heading back toward the respective stub proximal ends (92, 110) but stopping short thereof. One of the stubs includes an extension leg section (114) to make it longer than the other stub for greater tunability.

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Six (6) photographs of prior art cellular telephone antenna coupling network box made by Valor Enterprises, Inc.
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Reference Data for Radio Engineers pp. 22-13 to 22-18 (Howard W. Sons & Co. 1974-Fifth Edition).

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