Reconfigurable Multiband Antenna for Heterogeneous Transceiver

Abstract

Heterogeneous network tends to use multiple types of wireless access networks. In heterogeneous wireless networks, different wireless access technologies are integrated to complement each other in terms of coverage area, mobility support, bandwidth, and price. The multi-band antenna is one of the most important elements and commonly used in modern wireless communication. It is incorporated into many multimode receiver designs. WiMax and WLAN are widely applied in wireless device such as femtocell access point. In this work, a design of reconfigurable rectangular microstrip patch antenna is presented. The proposed antenna is used in WiMax with centre frequency at 3.5 GHz and WLANwith centre frequency at 5.2 GHz. The rectangular microstrip antenna consist the RF-4 proxy in substrate and also consist copper in the patch and ground plane. The design technique based on C-slot on the patch and two parallel slit on the ground plane. Antenna reconfigurabilty is achieved by three PIN diode switch in C-slot. However, the changes of PIN diode cases status on ON or OFF mode, the resonant frequencies can be changed between 3.5GHz and 5.2GHz.This design shows excellent mechanical characteristics for the antenna; and study is concentrates on effect of patch dimensions, width and length of microstrip feed line. The performances of the antenna are simulated by CST microwave studio simulator and having good results. The proposed antenna offers low profile, wide bandwidth and high gain for all frequencies.