Universiti Teknologi Malaysia Institutional Repository

Frequency and pattern reconfigurable yagiantenna

A. Majid, Huda and A. Rahim, Mohamad Kamal and Hamid, M. R. and Ismail, Mohammad Faizal (2012) Frequency and pattern reconfigurable yagiantenna. Journal Electromagnetic Waves and application, 26 . pp. 379-389.

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Official URL: http://dx.doi.org/10.1163/156939312800030893


A novel frequency and pattern reconfigurable Yagi antenna is proposed. The antenna is formed by a driver, a reflector and two directors. The introduction of switches using a PIN diode at the arms of the driver element produces three switchable frequencies at 1.25 GHz, 1.85 GHz and 2.45 GHz. By controlling the switches at the directors and reflector, the radiation pattern can be configured to near omni-directional pattern or directional pattern at those three frequencies. Simulated and measured results are used to demonstrate the performance of the antenna. The simulated and measured return losses and the radiation patterns, are presented and compared. It was found that the gain of the antenna increases from 3.3 dB to 5 dB in a directional pattern, when compared to the near omni-directional pattern.

Item Type:Article
Uncontrolled Keywords:Electromagnetics
Subjects:Q Science > QC Physics
Divisions:Electrical Engineering
ID Code:47006
Deposited By: Haliza Zainal
Deposited On:22 Jun 2015 05:56
Last Modified:28 Sep 2017 04:33

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