Title :
Wideband quasi-Yagi antenna with tapered driver
Author :
Nguyen, Phong Thanh ; Abbosh, Amin ; Crozier, Stuart
Author_Institution :
Sch. of Inf. Technol. & Electr. Eng., Univ. of Queensland, Brisbane, QLD, Australia
Abstract :
This paper presents a wideband quasi-Yagi antenna with a driven element in the form of tapered strip. The antenna is designed to be part of a circular array for a microwave imaging system. The feeding structure of the antenna includes a balun that is formed using a pair of microstrip to slotline transitions. The simulated results of the proposed antenna indicate more than 73% fractional bandwidth with more than 10 dB return loss and about 3 dBi to 5 dBi gain.
Keywords :
Yagi antenna arrays; baluns; broadband antennas; microstrip lines; microwave imaging; slot lines; balun; circular array; feeding structure; microstrip to slotline transitions; microwave imaging system; tapered driver; tapered strip; wideband quasi-Yagi antenna; Antenna feeds; Bandwidth; Broadband antennas; Gain; Impedance matching; Microstrip antennas; planar antenna; quasi-yagi antenna; wideband antenna;
Conference_Titel :
Antennas and Propagation (APCAP), 2012 IEEE Asia-Pacific Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4673-0666-9
DOI :
10.1109/APCAP.2012.6333186
