Effect of Feeding Techniques on the Radiation Characteristics of Patch Antenna: Design and Analysis

Abstract: Micros strip rectangular patch antennas are attracting the attention of antenna designer, because of attractive advantages such low profile, light weight, easy of fabrication etc. but it also suffering with some drawbacks of low gain, narrow band width. These drawbacks can be overcome by some extent by taking care in design of antenna. There are many parameters effecting the radiating characteristics of antenna but in present project we are considering feeding of power to antenna because this plays important role. Here we are considering three different feed methods such as coaxial feed, inset feed and cut feed and their effects on radiating characteristics were analyzed on comparing with one to each other all the antenna parameters. The design was done in Ansoft HFSS version 13. The results of return loss, gain, bandwidth and FBR are presented.

Keywords: coaxial feed, strip feed, cut feed, band width, return loss, gain, FBR