Communications: radio wave antennas – Antennas – With lumped reactance for loading antenna
Patent
1980-02-07
1982-04-13
Lieberman, Eli
Communications: radio wave antennas
Antennas
With lumped reactance for loading antenna
343903, H01Q 110, H01Q 936
Patent
active
043250696
ABSTRACT:
A multisegment collapsible self-erecting AM/FM broadcast band power antenna for mobile receiving units includes a tip segment having a restrictor cooperating with a removable collar to limit the antenna extension to an optimum value for the AM/FM broadcast bands. Conversion of the antenna to a length and load impedance commensurate with reception of signals in the AM/FM broadcast bands and transmission/reception in the CB band is effected by replacement of the collar with a loading coil module together with extension of the lower end of the tip segment into the loading coil module and out of physical connection with the adjacent segment. Normal extension and collapse of the antenna remains unaffected and the conversion is reversible.
REFERENCES:
patent: 3104394 (1963-09-01), Yokoyama
patent: 3172109 (1965-03-01), Senrui
patent: 3798654 (1974-03-01), Martino et al.
Jimmy's Radio & Televison Corp.
Lieberman Eli
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