Title :
Research on a novel Yagi-Uda antenna fed by balanced microstrip line
Author :
Run-nan, Cai ; Shu, Lin ; Guan-long, Huang ; Xue-ying, Zhang ; Xing-qi, Zhang ; Wen-bin, Zhang ; Jin-xiang, Wang
Author_Institution :
Sch. of Electron. & Inf. Eng., Inst. of Technol., Harbin, China
Abstract :
Slots A novel printed Yagi-Uda antenna fed by balanced microstrip line is proposed. All the active dipole, reflector and director are printed on the same side of a dielectric substrate. The feeding line printed on the same side with the dipole is directly connected to one of active dipole´s branches, while the other feeding line is printed on the other side and connected to another branch through a via-hole. The simulation software CST MICROWAVE STUDIO® is utilized to optimize the structural parameters. Both simulated and experimental results show that the operating bandwidth is 1.8GHz~2.4GHz with reflection coefficient less than -10dB (relative bandwidth 28.6%). Antenna gain in the band can achieve 5~6dBi, which well matches the simulated results. Moreover, the antenna size is only 78mm×40mm (0.47λ×0.24λ). All the excellent performance of the proposed antenna can meet the requirements of WLAN systems.
Keywords :
Yagi antenna arrays; dipole antennas; electrical engineering computing; electromagnetic wave reflection; microstrip antennas; microstrip lines; reflector antenna feeds; CST MICROWAVE STUDIO; active dipole; balanced microstrip line; dielectric substrate; director; feeding line; printed Yagi-Uda antenna; reflection coefficient; reflector; simulation software; structural parameter; Antenna measurements; Bandwidth; Dipole antennas; Microstrip antennas; Reflection; Reflector antennas; Yagi-Uda antennas; Yagi-Uda antenna; balanced microstrip line; dipole; printed antenna;
Conference_Titel :
Microwave Conference Proceedings (CJMW), 2011 China-Japan Joint
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4577-0625-7
Electronic_ISBN :
978-7-308-08555-7
