Design Of Proximity Microstrip Antenna

Nor Suzyliana, Ahmad (2008) Design Of Proximity Microstrip Antenna. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The 2.4GHz frequency used in Wireless LAN applications. The investigations on a new proximity microstrip antenna, which can be operated at WLAN frequency bands of wireless communication are reported. The project presents the design of inset fed and proximity feeding technique using microstrip antenna. The behavior of these antennas are investigate such as return loss, radiation pattern, bandwidth, half power bandwidth (HPBW), first null bandwidth (FNBW) and gain. The project includes the simulation process using microwave office software, fabrication process using chemical etching and measurement process by using network and spectrum analyzer. The inset fed antenna produced greater return loss at -19dB while the PCMA designed gives return loss value at -29dB. The array antenna design for PCMA including 1x2, 1x4 and 2x4 configurations. The 2x4 PCMA design is the best array configuration that produced bandwidth enlargement up to 25 %. The Microstrip antennas with a proximity-coupled feed enjoy a greater bandwidth as well as easier impedance matching than those with an edge feed. The results show that the antenna has sufficient bandwidth and gain necessary for the above frequency bands and may be used for WLAN applications. The array configuration of PCMA gives larger bandwidth up to 25% compared to inset fed antenna. Array configuration improved the gain of the antenna as well.

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