A simple low-profile magneto-electric dipole antenna element

Author

Lei Ge ; Kwai Man Luk

Author_Institution

Dept. of Electron. Eng. & State Key Lab. of Millimeter Waves, City Univ. of Hong Kong, Hong Kong, China

fYear

2013

fDate

14-18 April 2013

Firstpage

1

Lastpage

3

Abstract

By combining a horizontal planar dipole and a vertically oriented folded shorted patch antenna, a new low-profile magneto-electric dipole antenna is presented. The antenna is simply excited by a coaxial feed which works as a balun. A prototype was designed, fabricated and measured. Simulated and measured results agree well. An impedance bandwidth of 45.6% for SWR ≤ 1.5 from 1.86GHz to 2.96GHz was achieved. Stable radiation pattern with low cross polarization, low back radiation and an antenna gain of 8.1±0.8dBi was found over the operating frequencies. Also, the height of the antenna is only 0.169λ. In addition, the antenna is d.c. grounded which satisfies the requirement of many outdoor antennas.

Keywords

antenna feeds; antenna radiation patterns; baluns; dipole antennas; electromagnetic wave polarisation; microstrip antennas; antenna gain; back radiation; balun; coaxial feed; cross polarization; frequency 1.86 GHz to 2.96 GHz; horizontal planar dipole; impedance bandwidth; low-profile magneto-electric dipole antenna element; outdoor antennas; radiation pattern stability; vertically-oriented folded shorted patch antenna; Antenna feeds; Antenna measurements; Antenna radiation patterns; Dipole antennas; Frequency measurement; Magnetoelectric effects; Patch antennas; low profile; magneto-electric dipole; unidirectional radiation patterns; wideband antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Symposium (IWS), 2013 IEEE International

Conference_Location

Beijing

Type

conf

DOI

10.1109/IEEE-IWS.2013.6616783

Filename

6616783