Frequency reconfigurable quasi-Yagi microstrip antenna with beam shaping for WiMAX application

Author

Ali, M.T. ; Zain, M. Y Mat ; Ramli, N. ; Yusof, A.L. ; Tan, M.N.M.

Author_Institution

Microwave Technol. Centre (MTC), Univ. Teknol. MARA, Shah Alam, Malaysia

fYear

2011

fDate

12-14 Dec. 2011

Firstpage

434

Lastpage

438

Abstract

This paper presents a frequency reconfigurable quasi-Yagi microstrip antenna with beam shaping for WiMAX application by using a folded dipole as a driven element. The reconfigurability of this antenna can be achieved by varying length of driven element. The usage of PIN diodes which act as switches will help to vary the length of driven element. This microstrip antenna has use quarter-wave matched T-junction power divider to match the impedances between feed line and driven element. Furthermore, this quasi-Yagi microstrip antenna was originally designed using CST Microwave Studio for operation in 5.8GHz frequency band. However, by changing the driven element length, this quasi-Yagi microstrip antenna can operate at differ frequency and differ directions. In addition, this reconfigurable quasi-Yagi microstrip antenna with switching has been fabricated and experimental results are provided in this paper.

Keywords

WiMax; dipole antennas; microstrip antennas; p-i-n diodes; CST microwave studio; PIN diodes; WiMax application; beam shaping; folded dipole; frequency 5.8 GHz; frequency reconfigurable quasi-Yagi microstrip antenna; quarter-wave matched T-junction power divider; Antenna radiation patterns; Dipole antennas; Microstrip; Microstrip antennas; Microwave antennas; beam shaping; folded dipole; frequency reconfigurable; microstrip antenna; quasi-Yagi;

fLanguage

English

Publisher

ieee

Conference_Titel

RF and Microwave Conference (RFM), 2011 IEEE International

Conference_Location

Seremban, Negeri Sembilan

Print_ISBN

978-1-4577-1628-7

Type

conf

DOI

10.1109/RFM.2011.6168784

Filename

6168784