Communications: radio wave antennas – Antennas – Microstrip
Patent
1977-12-12
1979-07-10
Lieberman, Eli
Communications: radio wave antennas
Antennas
Microstrip
H01Q 138
Patent
active
041609760
ABSTRACT:
A broadband antenna including a conductive disc parallel to and spaced from a ground plane with dielectric material therebetween, the disc including a first sector of approximately 270.degree. having a first diameter and the remaining sector having a second diameter different from the first so that the equivalent resonant structure of the antenna is essentially detuned to broaden the bandwidth thereof, and a cylindrical array of such antennas for providing a desired radiation pattern, generally omnidirectional.
REFERENCES:
patent: RE29296 (1977-07-01), Krutsinger et al.
patent: 3680136 (1972-07-01), Collings
patent: 4012741 (1977-03-01), Johnson
patent: 4053895 (1977-10-01), Malagisi
Lieberman Eli
Motorola Inc.
Parsons Eugene A.
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