Acs Feed Compact Multiband Antenna for Personal Wireless Communication Applications

Abstract

Abstract-In this article, the design and analysis of a compact asymmetrical coplanar strip (ACS) feed multiband monopole antenna operating over the frequency range of Bluetooth/IMT-E (2.4-2.484/2.5-2.6 GHz), worldwide interoperability for microwave access (WiMAX: 3.3-3.6 GHz) and wireless local area network (WLAN: 5.15-5.825 GHz) for Personal Wireless Communication Systems (PWCS) applications has been investigated. The proposed antenna consists of a semi-circular arc and L-shaped stub which forms a vertically flipped G structure that facilitates the multi-band operation at 2.4 GHz and 3.5/5.5 GHz respectively. The antenna is fabricated on a low cost FR-4 substrate having thickness of 1 mm and has compact dimensions of 24 × 10 mm 2 . The proposed antenna yields a highly isolated measured impedance bandwidth of 2.3-2.7 GHz, 3.25-3.65 GHz and 5.1-6 GHz for Bluetooth/IMT-E, WiMAX and WLAN bands respectively and exhibits symmetrical radiation pattern, stable gain across all operating frequency bands which makes the antenna a suitable candidate for PWCS applications.