Accession Number : AD0163895
Title : Tunable Omnidirectional Antenna.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C
Personal Author(s) : Richard,David J.
Report Date : 25 JUL 1972
Pagination or Media Count : 10
Abstract : The patent describes a physically planar omnidirectional antenna having two loaded, concentric, semicircular, radiating members. The antenna has a relatively uniform nominal impedance and a tunable operation over approximately a 3:1 bandwidth with a protrusion above the ground plane of less than one-tenth wavelength at the high frequency end of the operating bandwidth.
Descriptors : (*OMNIDIRECTIONAL ANTENNAS, *PATENTS), TUNING DEVICES, PRINTED CIRCUITS, VERY HIGH FREQUENCY, ULTRAHIGH FREQUENCY
Subject Categories : Electrical and Electronic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE