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Modified slotted patch electromagnetic band gap for antenna array application

Ayop, Osman and A. Rahim, Mohamad Kamal and Masri, Thelaha and A. Karim, Mohd Nazri and Abd Aziz, Mohamad Zoinol Abidin (2007) Modified slotted patch electromagnetic band gap for antenna array application. In: Microwave Conference, 2007. APMC 2007. Asia-Pacific, 11-14 Dec 2007.

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Official URL: http://dx.doi.org/10.1109/APMC.2007.4554718

Abstract

A modified slotted patch EBG structure has been investigated by measuring the forward transmission coefficient, S21. The thickness and dielectric constant of the substrate, the size and the gap of the elements in EBG structure has been modified and simulated to see the S21 value and followed by a discussion of the design and the evaluation of the structure itself. The simulation process was carried out using Microwave Office 2006 software. The 3 by 3 modified slotted patch EBG structures which has 11 mm x 11 mm elements size was fabricated using inexpensive fire retardant-4 (FR4) board, using wet etching techniques. The stimulated and measured S21 result shows the band gap of the structure, which are found to be between 2.24 GHz and 2.6 GHz at -20 dB. This structure is then incorporated into a 2 by 2 rectangular microstrip antenna array, operating at 2.4. The result shows that the radiation pattern improved with reducing side and back lobe with an extra gain of 1 dB compared with the antenna without the EBG structure.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Microwave Office 2006 software, fire retardant-4 board, forward transmission coefficient measurement, frequency 2.24 GHz to 2.6 GHz, radiation pattern, rectangular microstrip antenna array, slotted patch electromagnetic band gap, wet etching techniques
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:7245
Deposited By: Norhafizah Hussin
Deposited On:02 Jan 2009 02:54
Last Modified:01 Jun 2010 15:50

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