Title :
Four-element planar array antenna for UWB application
Author :
Youcheng Wang ; Jinjin Shao ; Chao Chen ; Yicai Ji ; Zhou Bin ; Guangyou Fang ; Hailong Zhang ; Lirui Wang
Author_Institution :
Key Lab. of Electromagn. Radiat. & Sensing Technol., Beijing, China
fDate :
June 30 2014-July 4 2014
Abstract :
A novel low-cost 4-element planar array antenna directly fed by a coaxial cable for Ultrawideband (UWB) application is presented. The proposed antenna consists of 2*2 bowtie elements and a simple 1*4 power divider feeding network. Comparing with the basic bowtie element, the impedance bandwidth of the array antenna has a significant improvement that the low cut-off frequency is extended from 6GHz of the bowtie element to 2GHz. The measured results show that the antenna has a bandwidth of 2GHz to 11GHz for VSWR<;2. The proposed antenna exhibits a bidirectional radiation pattern and a modest gain across the operating band and a peak gain of about 9 dBi at 11 GHz.
Keywords :
UHF antennas; antenna feeds; antenna radiation patterns; bow-tie antennas; coaxial cables; microwave antenna arrays; planar antenna arrays; power dividers; ultra wideband antennas; ultra wideband communication; 4-element planar antenna array; UWB application; antenna bidirectional radiation pattern; bandwidth 2 GHz to 11 GHz; bowtie element; coaxial cable; cut-off frequency improvement; four-element planar antenna array; impedance bandwidth; peak gain; power divider feeding network; ultra wideband application; Antenna measurements; Arrays; Broadband antennas; Gain measurement; Impedance; Radar imaging; Transmitting antennas; bowtie; gain; parallel-strip; ultra-wideband;
Conference_Titel :
Ground Penetrating Radar (GPR), 2014 15th International Conference on
Conference_Location :
Brussels
DOI :
10.1109/ICGPR.2014.6970533
