Means for tuning an antenna

Details Means for tuning an antenna Means for tuning an antenna

1989-02-01

1990-09-18

Hille, Rolf

Communications: radio wave antennas

Antennas

With variable reactance for tuning antenna

343750, H01Q 9000

Patent

active

049581635

ABSTRACT:
An antenna comprising a radiating element, a tuning coil having a rod located coaxially within the coil and positionable along the longitudinal axis of the tuning coil, the rod having a wiper attached which urges against the internal surface of the coil and means for positioning the rod such that with the coil connected to a radiating element and the wiper connected to a radio frequency transceiver, tuning of the antenna can be effected by control of the positioning means to adjust the position of the wiper along the tuning coil.

REFERENCES:
patent: 2961657 (1960-11-01), Hodges et al.
patent: 3611390 (1971-10-01), Chiron
patent: 3671972 (1972-06-01), Spilsbury et al.
patent: 4063206 (1977-12-01), Walker, III
patent: 4097867 (1978-06-01), Eroncig
patent: 4214246 (1980-07-01), Arechavala

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