Microstrip antenna employing width discontinuities

Details Microstrip antenna employing width discontinuities Microstrip antenna employing width discontinuities

2005-01-04

2005-01-04

Vo, Tuyet Thi (Department: 2821)

Communications: radio wave antennas

Antennas

Microstrip

C343S824000, C343S830000

Reexamination Certificate

active

06839028

ABSTRACT:
An apparatus and method to reduce the size of a microstrip antenna without sacrificing antenna efficiency too much are described. The antenna structure includes discontinuity of strip width in the middle of the antenna patch to reduce the size of the antenna at a given resonant frequency. The antenna structure further includes a plurality of patches of differing widths connected to each other at junctions. The junctions are placed symmetrically to ensure maximum radiation at the boresight and also to further reduce cross-polarization levels. A coaxial feed is connected at a predetermined location near the center of a patch, having a narrower width, in order to match the input impedance of the antenna to the coaxial feed.

REFERENCES:
patent: 3757342 (1973-09-01), Jasik et al.
patent: 4777490 (1988-10-01), Sharma et al.
patent: 6057801 (2000-05-01), Desclos et al.
patent: 6084548 (2000-07-01), Hirabe
patent: 6097271 (2000-08-01), Kozakoff
patent: 6127978 (2000-10-01), Uematsu et al.
patent: 6150982 (2000-11-01), Bergstedt et al.
patent: 6313798 (2001-11-01), Bancroft et al.
C.S. Lee and K.H. Tseng, “Electrically Small Microstrip Antenna with Width Discontinuities,”Proceedings of IASTED, Banff, Alberta, Canada, Jul. 10-17, 2002, pp. 1-4.
Roger Hill, “A Practical Guide to the Design of Microstrip Antenna,”A Practical Guide to the Design of Microstrip Antenna Arrays(Microwave Journal), n.d., <http://www.testmart.com
ews
ewstmp.cfm/v/001˜˜. . .
ews/mw_200103_1.cfm.html> (Aug. 2, 2002).
Jui-Han Lu, “Broadband Operation of a Slot-Coupled Compact Rectangular Microstrip Antenna With a Chip-Resistor Loading,”Proceedings National Science Council, ROC (A), vol. 23, No. 4, 1999. pp. 550-554.
David M. Pozar, “Microstrip Antennas,”Proceedings of the IEEE, vol. 80, No. 1, Jan. 1992, pp. 79-91.

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