Balanced low profile hybrid antenna

Details Balanced low profile hybrid antenna Balanced low profile hybrid antenna

1989-08-18

1990-07-10

Sikes, William L.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343702, 343741, H01Q 926

Patent

active

049409921

ABSTRACT:
An antenna for a low profile portable communications receiver is described. The antenna comprises a conductor formed into a single turn loop having a first set of parallel opposed sides one quarter wavelength or less in length at the operating frequency and a second set of parallel opposed sides, substantially shorter than the first set of sides. The loop terminates in connection tabs symmetrically about the midpoint of one of the first set of sides for connection to a receiver. A dielectric core is interposed within the loop, substantially filling the loop. With the core within the loop, the loop also functions as a halfwave electric dipole thereby providing an antenna responsive to both the magnetic and electric fields of an electromagnetic wave.

REFERENCES:
patent: 2515816 (1950-07-01), Zindel, Jr.
patent: 2866195 (1958-12-01), Powlison
patent: 2888676 (1959-05-01), Spindler
patent: 3736591 (1973-05-01), Rennels et al.
"Small Antennas", by Harold A. Wheeler published in the IEEE Transactions on Antennas and Propagation, vol. AP-23, No. 4, Jul., 1975, pp. 462-469.
"Personal Radio Antennas" by N. H. Shepard and W. G. Chaney of G. E., Lynchburg, Va., pp. 23-31, source of the publication is unknown.

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