Broadband planar dipole antenna structure and associated...

Details Broadband planar dipole antenna structure and associated... Broadband planar dipole antenna structure and associated...

2007-06-14

2009-02-24

Nguyen, Hoang V (Department: 2821)

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

C343S7000MS

Reexamination Certificate

active

07495627

ABSTRACT:
An antenna structure includes an omnidirectional broadband planar dipole antenna including a first electrically conductive disc defining a first dipole antenna element, and a second electrically conductive disc defining a second dipole antenna element in parallel with and spaced apart from the first dipole antenna element. A dual-line antenna feed structure may be connected to the planar dipole antenna and includes a first conductor electrically connected to the first conductive disc adjacent a peripheral edge thereof, and a second conductor electrically connected to the second conductive disc adjacent a peripheral edge thereof. The planar antenna may provide vertical polarization transmission and reception, and it may not require a ground plane. The antenna may use printed circuit construction like microstrip patch antennas. Operation may provide a single band antenna of broad bandwidth, a multiple band antenna, or any combination thereof. Responses may include single, multiple, or the Chebyshev polynomial tuning.

REFERENCES:
patent: 4089003 (1978-05-01), Conroy
patent: 4947178 (1990-08-01), Shafai
patent: 5003318 (1991-03-01), Berneking et al.
patent: 5861848 (1999-01-01), Iwasaki
patent: 6501427 (2002-12-01), Lilly et al.
patent: 7109926 (2006-09-01), Du Toit
patent: 7126538 (2006-10-01), Sampo
patent: 2006/0250315 (2006-11-01), Parsche
patent: 1 795 926 (2007-06-01), None
Wheeler, “The Wide-Bank Matching Area for a Small Antenna”, IEEE Transactions on Antennas and Propagation, vol. AP-31, No. 2, Mar. 1984, pp. 364-367.

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