Broad-Band Differential-Fed Patch Antenna - A Novel Feeding Scheme to Realizing Stability of Radiation Characteristics

Author

Chin, Ching-Hong K. ; Xue, Quan ; Wong, Hang

Author_Institution

City Univ. of Hong Kong, Kowloon

fYear

2007

fDate

July 30 2007-Aug. 2 2007

Firstpage

311

Lastpage

314

Abstract

A new bandwidth enhancement methodology for differential-fed patch antenna (DFPA) using a vertical feeding plate pair is proposed. The devised feeding approach effectually offers a very wide band impedance matching for the antenna and provides a unified gain and radiation pattern stabilization technique for performance improvement. Experimental results reveal an impedance bandwidth of more than 70% for the devised DFPA. Symmetric radiation patterns and low cross-polarization levels are realized within the band. More importantly, the antenna gain maintains high at 8.5 dBi with stable radiation patterns, hence achieving the high stability of the radiation characteristics.

Keywords

antenna feeds; antenna radiation patterns; broadband antennas; electromagnetic wave polarisation; impedance matching; microstrip antennas; DFPA; antenna gain; bandwidth enhancement methodology; broadband patch antenna; differential-fed patch antenna; feeding scheme; impedance matching; low cross-polarization levels; performance improvement; radiation characteristics; radiation pattern stabilization technique; symmetric radiation patterns; vertical feeding plate pair; Antenna feeds; Antenna radiation patterns; Bandwidth; Broadband antennas; Impedance; Microstrip antennas; Microwave technology; Patch antennas; Stability; Wireless communication; Antenna feeds; antenna radiation patterns; bandwidth widening; cross-polarization; microstrip patch antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Electronics, 2007. ISSSE '07. International Symposium on

Conference_Location

Montreal, Que.

Print_ISBN

1-4244-1448-2

Electronic_ISBN

1-4244-1449-0

Type

conf

DOI

10.1109/ISSSE.2007.4294475

Filename

4294475