Multi-segment MPA with T-feed for multi-band wireless communication

Abstract

A new antenna structure comprising multiple radiating microstrip patches, representing a digital figure of eight, proximity fed by a microstrip line is proposed. On a double-layered substrate of FR4, this antenna achieves multi-band functionality in the range 3.2–13.51 GHz which covers IEEE 802.11a standard and other wireless communication systems. It achieves multi-band functionality through the introduction of short connecting metallic strips which connect the different elements of the main radiating structure. The reflection coefficient spectra and the radiation patterns are suggestive of reconfigurability in frequency and pattern. Details of the antenna design and simulation results of the reflection coefficients, voltage standing wave ratio bandwidth, gain and the radiation pattern of the proposed antenna are presented. A prototype has been developed and successfully implemented.

Keywords:

• microstrip patch antenna
• radiation pattern
• reflection coefficient
• scan angle
• reconfigurability