Title :
Planar Wideband Loop-Dipole Composite Antenna
Author :
Wen-Jun Lu ; Wen-Hai Zhang ; Kin Fai Tong ; Hong-Bo Zhu
Author_Institution :
Jiangsu Key Lab. of Wireless Commun., Nanjing Univ. of Posts & Telecommun., Nanjing, China
Abstract :
A novel planar wideband balanced composite antenna is presented. The proposed antenna consists of a symmetrical dipole and an antipodal loop radiator. The return loss, radiation pattern, and gain of the antenna are numerically and experimentally studied. An impedance bandwidth of 129% (20 log |S11| <; -10dB) from 3.26 to 15 GHz has been obtained. Stable end-fire radiation patterns with good polarization purity and flat gain performances are obtained across the operating frequency range. In addition, the time domain responses of the proposed antenna are investigated. The proposed antenna can be used in compact wireless devices for point-to-point applications.
Keywords :
antenna radiation patterns; broadband antennas; dipole antennas; electromagnetic wave polarisation; loop antennas; microwave antennas; planar antennas; time-domain analysis; antipodal loop radiator; bandwidth 3.26 GHz to 15 GHz; compact wireless devices; planar wideband balanced composite antenna; planar wideband loop-dipole composite antenna; point-to-point applications; polarization purity; radiation pattern; return loss; symmetrical dipole antenna; time domain responses; Antenna measurements; Antenna radiation patterns; Broadband antennas; Dipole antennas; Impedance matching; End-fire radiation pattern; loop-dipole composite antenna; planar antenna; wideband antenna;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2014.2299820
