Multiple band, multiple resonant frequency antenna

Details Multiple band, multiple resonant frequency antenna Multiple band, multiple resonant frequency antenna

1978-09-22

1980-10-21

Lieberman, Eli

Communications: radio wave antennas

Antennas

With lumped reactance for loading antenna

343895, H01Q 132, H01Q 927

Patent

active

042297435

ABSTRACT:
An antenna (10) suitable for multiple frequency band utilization includes three impedance elements (11,12 and 13). The second impedance element (12), which may also be called a network (12), includes a coil (L.sub.2) and at least one other conductor (17) in operative association therewith. The second impedance element may be electrically connected to both a first impedance element (11), which may include a linear conductor (14) coupled to a radio, and a third impedance element (13), which may include a coil (L.sub.1). By constructing the network (12) so as to have appropriate dimensions, antenna 10 will have a plurality of natural resonant frequencies substantially within or nearby at least each higher band of frequencies of interest.

REFERENCES:
patent: 2898590 (1959-08-01), Pichitino
patent: 2966678 (1960-12-01), Harris
patent: 2966679 (1960-12-01), Harris
patent: 3176298 (1965-03-01), Nettles
patent: 3689928 (1972-09-01), Felsenheld
patent: 3725942 (1973-04-01), Ukmar
patent: 4117493 (1978-09-01), Altmayer
Takechi, "Unequal-Multiconductor Unipole Antennas" in Electronics & Communications in Japan (5-1966) pp. 45-53.

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