Design of reconfigurable active integrated microstrip antenna with switchable low‐noise amplifier/power amplifier performances for wireless local area network and WiMAX applications. Issue 9 (1st June 2015)

• Record Type: Journal Article
• Authors: Valizade, Arash; Rezaei, Pejman; Orouji, Ali Asghar
• Is Part Of: IET microwaves, antennas & propagation. Volume 9:Issue 9(2015)
• Page Start: 872
• Page End: 881
• Publication Date: 2015-06-01
• Subjects: active antennas -- microstrip antennas -- monopole antennas -- wireless LAN -- WiMax -- low noise amplifiers -- UHF power amplifiers -- microwave power amplifiers -- digital filters -- radio transceivers -- omnidirectional antennas -- antenna radiation patterns -- UHF antennas -- UHF filters -- microstrip filters; reconfigurable passive monopole active integrated microstrip antenna design -- switchable low‐noise amplifier -- switchable power amplifier -- wireless local area network -- WiMAX application -- WLAN -- worldwide interoperability for microwave access -- interdigital filter -- LNA -- PA -- full‐duplex switchable transceiver -- additional filter elimination -- gain improvement -- omnidirectional radiation characteristics -- gain improvementsingle‐port microstrip AIA -- frequency 2.3 GHz to 2.56 GHz -- frequency 3.3 GHz to 3.59 GHz; Microwaves -- Periodicals; Microwave antennas -- Periodicals; Antennas (Electronics) -- Periodicals; Radio wave propagation -- Periodicals; Microwave communication systems -- Periodicals; 621.381305
• DOI: 10.1049/iet-map.2014.0704
• Languages: English
• ISSNs: 1751-8725

Abstract

Abstract : A novel design of reconfigurable monopole microstrip active integrated antenna (AIA) for wireless local area network (WLAN) and Worldwide Interoperability for Microwave Access (WiMAX) applications is presented and discussed in this study. The primary designed reconfigurable passive antenna is capable of supporting switchable single/dual band performances while having a compact dimension of 12 × 18 mm 2 . The proposed reconfigurable passive antenna is integrated with an interdigital filter and a reconfigurable switchable power/low‐noise amplifier (LNA) (power amplifier – PA, LNA) forming a single‐port microstrip AIA which can be used as a full‐duplex switchable transceiver in which the need for additional filters is eliminated because of its reconfigurable structure. A 2.3–2.56 GHz (WLAN) with 12.3 dB (PA) gain improvement and 3.3–3.59 GHz (WiMAX) with 8.5 dB (LNA) gain improvement are supported at switchable performances of the fabricated reconfigurable AIA. Measured results show that the designed passive and active antennas have proper almost omnidirectional radiation characteristics at their desired operation frequencies which is suitable for WLAN and WiMAX applications.