Wideband Antenna With SRR Waveguide

Tan, Wan Chian (2015) Wideband Antenna With SRR Waveguide. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 pages) Wideband Antenna With SRR Waveguide 24 Pages.pdf - Submitted Version Download (352kB)

Abstract

Nowadays, ultra-wideband technology has evolved rapidly in wireless communication system due to the requirements on large data capacity and high data transmission rate. Thus, a wideband antenna supports for devices which can operate at wide range of frequencies band has become high demand in the market. The main purpose of this project is to design, simulate and fabricate a wideband antenna with split-ring resonator (SRR) waveguide. In this antenna designed process, a wideband antenna by using planar structure is designed first. Then, it will be inserted into a rectangular waveguide followed by the SRR structure waveguide. The ground slot technique is used in order to achieve the desired broader of bandwidth and low return loss. The wideband antenna with SRR waveguide designed is simulated by using CST software and fabricated by using chemical etching techniques. The antenna without the SRR waveguide should be able to operate from frequency of 2GHz to 6.5GHz with the return loss lower than -10dB. It can operate at wideband frequencies band which covered the IEEE Bluetooth/WLAN (2.4-2.485GHz), WLAN (5.2G/5.8GHz) and WiMax application 2.5GHz (2.5-2.69GHz), 3.5GHz (3.3-3.8GHz) and 5GHz (5.25-5.85GHz). The antenna with SRR waveguide manages to enhance the gain and directivity of the antenna. The directivity is expressively increased at all simulated frequency range. Meanwhile, the gain is increased at least 1dB at frequency of 4.5GHz, 6.5GHz and 7GHz-10GHz.

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