Title :
Numerical study of symmetrical ultra-wideband antipodal slot antenna
Author :
Lu, Wen Jun ; Zhu, Hong Bo
Author_Institution :
Jiangsu Key Lab. of Wireless Commun., Nanjing Univ. of Posts & Telecommun., Nanjing, China
Abstract :
Design concept of compact ultra-wideband (UWB) antipodal slot antenna with improved cross-polarization performance is presented. The antenna is fed by strip-line with symmetrical feed pads so that the antenna can be more easily fabricated, mounted or integrated with other microwave components. Performance of the antenna, such as return loss, radiation patterns and gain, are simulated and compared with conventional rectangular slot antenna. As will be presented, the impedance bandwidth of the antenna is from 3.12GHz to 10.8GHz, which is about 3.4:1. Stable omnidirectional radiation patterns, low cross polarization level and flat gain performances over the operation bandwidth can be achieved compared with conventional rectangular wide slot antenna.
Keywords :
antenna radiation patterns; microwave antennas; numerical analysis; slot antennas; ultra wideband antennas; bandwidth 3.12 GHz to 10.8 GHz; compact symmetrical ultra-wideband antipodal slot antenna; cross-polarization performance; flat gain performances; impedance bandwidth; omnidirectional radiation patterns; rectangular wide slot antenna; return loss; strip-line; Antenna accessories; Antenna feeds; Antenna radiation patterns; Bandwidth; Microwave antennas; Performance gain; Performance loss; Slot antennas; Ultra wideband antennas; Ultra wideband technology;
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2010 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-5705-2
DOI :
10.1109/ICMMT.2010.5524953
