Car phone antenna

Communications: radio wave antennas – Antennas – With grounding structure

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Details

343745, 343773, 343830, H01Q 148

Patent

active

055614396

ABSTRACT:
An antenna comprises a radiating element and a cone-shaped ground plate the relative distance between which can be altered thus altering the resonant frequency of the antenna and a base. The resulting antenna is a wideband quarter-wave vertical antenna which can be employed for testing in the 1.8 GHz frequency range and for temporary use in all car phones as well as in fixed stations.

REFERENCES:
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patent: 4851859 (1989-07-01), Rappaport
patent: 5132698 (1992-07-01), Swineford
RCA Technical Notes, No. 1337, Nov. 1983, Princeton, U.S. Robert M. Wilson, "Line Cord Antenna With Coaxial Section".
Finnish Office Action dated 17 Sep. 1993, Patent Application No. 925831 English Translation of Finnish Office Action.

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