09024831 is referenced by 80 patents and cites 13 patents.

A miniaturized ultra-wideband multifunction antenna comprising a conducting ground plane at the base, a plurality of concentric feed cables, one or more omnidirectional one-dimensional (1-D) normal-mode and two-dimensional (2-D) surface-mode traveling-wave (TW) radiators, frequency-selective internal and external couplers, and a unidirectional radiator on top, stacked and cascaded one on top of the other. Configured as a single structure, its unidirectional radiator and plurality of omnidirectional TW radiators can cover, respectively, most satellite and terrestrial communications, with unidirectional and omnidirectional radiation patterns, respectively, needed on various platforms. This new class of multifunction antenna is ultra-wideband, miniaturized and low-cost, thus attractive for applications on automobiles and other small platforms. As a multifunction antenna, a continuous bandwidth up to 1000:1 or more is reachable for terrestrial communications and a continuous bandwidth of 10:1 or more is feasible for satellite communications.

Title
Miniaturized ultra-wideband multifunction antenna via multi-mode traveling-waves (TW)
Application Number
13/449066
Publication Number
9024831 (B2)
Application Date
April 17, 2012
Publication Date
May 5, 2015
Inventor
Johnson J H Wang
Marietta
GA, US
Agent
Thomas Horstemeyer
Assignee
Wang Electro Opto Corporation
GA, US
IPC
H01Q 21/28
H01Q 9/30
H01Q 9/04
H01Q 1/32
H01Q 1/24
H01Q 11/02
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