DocumentCode :
1943254
Title :
PCB design of balanced log-periodic antennas
Author :
Weng, Tzu-Hsuan ; Lin, Yi-Cheng
Author_Institution :
Graduation Inst. of Commucation Eng., Nat. Taiwan Univ., Taipei
fYear :
2009
fDate :
23-27 March 2009
Firstpage :
1495
Lastpage :
1498
Abstract :
Log periodic antennas are widely used in EMI/Antenna measurement because of their ultra wideband properties. When designing a planar log-periodic antenna, the feeding method is a main issue. In this paper, a planar log-periodic antenna is fed by a planar Marchand balun. The whole design is illustrated on a PCB without any supporting device. The bandwidth ranges from 1.2 GHz to 3.3 GHz, with maximum radiation at the broadside. Additionally, shielding striplines are employed in the antenna design to suppress the crosspolarization component with successful results.
Keywords :
antenna feeds; antenna testing; baluns; electromagnetic interference; electromagnetic wave polarisation; log periodic antennas; microstrip antennas; planar antennas; printed circuit design; ultra wideband antennas; EMI-antenna measurement; PCB design; crosspolarization component; feeding method; planar Marchand balun; planar log-periodic antenna design; shielding striplines; ultra wideband property; Antenna feeds; Antenna measurements; Bandwidth; Broadband antennas; Electromagnetic interference; Frequency; Impedance matching; Log periodic antennas; Transmitting antennas; Ultra wideband antennas;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation, 2009. EuCAP 2009. 3rd European Conference on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-4753-4
Electronic_ISBN :
978-3-00-024573-2
Type :
conf
Filename :
5067897
Link To Document :
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