Microstrip Patch Antenna

Mohamad Aiman, Md Kassim (2012) Microstrip Patch Antenna. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This project is about to design of a microstrip patch antenna on the non-conductive textile substrates at the operating frequency 2.45 GHz which is for wireless local area network (WLAN) application. There are certain fabric materials in the market that can be use to patch the microstrip antenna such as Nora, felt, fleece and etc. Those fabric materials have relative permittivity characteristics that make it suitable for wearable antenna. The main objective of this project is to design, simulate, fabricate and analyze the microstrip patch antenna at frequency 2.45 GHz using textile as the substrate. The proposed fabric material for this project is felt fabric. The felt fabric is selected because it has constant thickness and stable relative permittivity. The 2.45 GHz unlicensed band is utilized for the development of this wearable antennas. The used of FR4 as the substrate in conventional antenna is not suitable for wearable system because of limited body movement problem. To overcome this problem is by changing FR4 substrate with textile substrate. The measurement results for fabricated antenna have a slightly different with the simulation result. The frequency of the simulation result is 2.45 GHz, but the frequency of measured result has shifted to 2.6 GHz. However, some recommendation was made in order to improve the performance of the antenna.

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