Summary
International Symposium on Antennas and Propagation
2006
Session Number:3C1a
Session:
Number:3C1a-2
Bandwidth Increment of Microstrip Patch Antenna Array with Opposite Double-E EBG Structure for Different Feed Positions
Manik Gujral, Tao Yuan, Cheng-Wei Qiu, Le-Wei Li, Ken Takei,
pp.1-4
Publication Date:2006/11/2
Online ISSN:2188-5079
Summary:
Microstrip patch antennas have been studied extensively over the past two decades because of its low profile structure, light weight and low cost. They have many advantages over conventional antennas, which makes them suitable for a wide variety of applications. However, bandwidth has been a major drawback for this type of antennas. In this paper, Opposite Double-E Electromagnetic bandgap (EBG) structure is proposed in the design so that significant improvement in bandwidth can be obtained when compared with a prototype antenna for similar feed positions. This percentage increment in bandwidth between prototype and EBG antenna is observed to be close to 50% when the feedline of the prototype antenna is placed at an optimum distance from the lower edge of the patch. It is shown that better bandwidth increment is obtained by positioning the feedline which lies below the centre of the patch width.