Title :
Broadband microstrip antennas using complementary metamaterials structure
Author :
Gou, Yuanxiao ; Hua, Jun ; Wu, Qun ; Wang, Hailong
Author_Institution :
Dept. of Microwave Eng., Harbin Inst. of Technol., Harbin, China
Abstract :
In this paper, a broadband rectangular patch antenna by using a complementary planar-patterned metamaterials is proposed. It is constructed by irregular cross gaps on the patch and ground respectively. Simulation and optimization show that both the impedance bandwidth and the radiation pattern bandwidth of the antenna are remarkable enhanced to 910 MHz (from 1.61 GHz to 2.52 GHz). Demonstrated to the left handed characteristics, the antenna´s main lobe direction is changed to the horizon forward, instead of the vertical upward, and in the pass band the antenna has 5 dB average gain, and the gain is flat in the entire band.
Keywords :
UHF antennas; antenna radiation patterns; broadband antennas; metamaterial antennas; microstrip antennas; planar antennas; antenna radiation pattern; bandwidth 910 MHz; broadband microstrip antennas; broadband rectangular patch antenna; complementary planar-patterned metamaterials; frequency 1.61 GHz to 2.52 GHz; gain 5 dB; impedance bandwidth; irregular cross gaps; left handed characteristics; optimization; Antenna radiation patterns; Bandwidth; Broadband antennas; Broadband communication; Gain; Metamaterials; Microstrip antennas; broadband; main lobe direction; planar metamaterials;
Conference_Titel :
Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2011
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-9792-8
DOI :
10.1109/CSQRWC.2011.6037003
