Summary
International Symposium on Antennas and Propagation
2010
Session Number:3TB3
Session:
Number:3TB3-2
Design and Simulation of a Slotted Diamondshaped Microstrip Patch Antenna with Modified Ground Plane
A.Ismahayati, P.J Soh, N.B.M Hashim, F.Malek, G.A.E Vandenbosch,
pp.-
Publication Date:2010/11/23
Online ISSN:2188-5079
Summary:
Mobile communication is one of the fastest growing, and considered one of the most important telecommunication applications. Thus, the demand for multi-function portable device is rapidly increased with the miniaturization of portable devices. In line with this trend, mobile devices’ antennas are required to operate in at least two frequency bands, aside from being compact, efficient and low-profile [1]. Microstrip patch antenna (MPA) is among the best choice to be implemented for operation in electronic devices, as it offers many attractive features such as simple structure, low production cost, light weight, robustness and ease of fabrication [2, 3]. However, the drawback of the patch antenna is the limitation by its narrow impedance bandwidth. To overcome this, many techniques have been suggested ? probe fed stacked antenna [4, 5], microstrip patch antennas on electrically thick substrate [6], slotted patch antenna [7-9], and addition of parasitic elements [10]. In the present work, design and analysis of a line-fed, slotted diamond-shaped microstrip patch antenna is carried out. In order to proof its improvements, it is also benchmarked along a nonslotted diamond-shaped antenna and a conventional rectangular microstrip patch antenna, which are both designed for operation in the 2.45 GHz Industrial, Scientific and Medical (ISM) band. The proposed design is able to operate in at least two other frequency ranges (5.2 GHz and 5.8 GHz) satisfactorily, with broad impedance bandwidth and gain. Details of the investigation based on experiments and simulations of the proposed antenna are described.