Compact patch antenna for 2.4 GHz

Abstract

Here various patch antennas such as square, pentagon, hexagon, heptagon and octagon of the same arm size has been modelled using copper as its conducting media and its various parameters such as reflection coefficient, directivity, gain and radiation efficiency has been calculated and compared for its effectiveness of the dimensional space. These antennas have been modelled over a polyimide (Kapton) based substrate with copper as its conducting media for its operation at 2.4 GHz. Assuming a human body parts with some curvature, theses patches has been bent with the size of its arm length to show the antenna behaviour and its various parameters has been compared. These comparisons show that the least dimensional space of a square shape provides a comparable gain, directivity and efficiency of the other patch antenna thus it can be selected for WLAN applications at 2.4 GHz frequency while saving the real estate of the PCB. The proposed antenna is perfectly suited for its integration into flexible and wearable electronics design.