Single Layer Dual band G-shaped patch antenna

Microstrip (MSA) antenna is known for its conformal nature and easy implementation. MSA has the limitation of narrow bandwidth due to its resonance behavior. The concern in the design of MSA is increasing the bandwidth either by Single or by multiband resonance without affecting conformal nature of the antenna. Several concepts were referred for the enhancement of bandwidth and the simple way to enhance the bandwidth is changing the shape of the patch. Creating slots on the patch can change the shape of the antenna. Because of increased discontinuity the radiation increases and hence the bandwidth also increases. This is done by putting slot on the patch so that we can get different shape of the patches. In this paper we get G-shape. The antenna parameters such as gain, return loss etc., for simplicity purpose here we mention some of few parameters that is gain, return loss and bandwidth. There are two bands can be obtained. The centre frequencies for these two bands are 3GHz, 3.8GHz,. The gain for these frequencies is 7.5dBi, 2.4dBi respectively. The return loss is -17dBi and -15dBi respectively and the percentage of the bandwidth is. HFSS the Finite Element Method based analysis software is used to design the Patch Antenna and to simulate the results.