Design of a Selective Filter-Antenna with Low Insertion Loss and High Suppression Stopband for WiMAX Applications
Alkhafaji MK*, Sahbudin RKZ, Ismail AB and Hashim SJ
Department of Computer and Communication System Engineering, Center of Excellence of Wireless and Photonics Network (WIPNET), UPM, 43400-Serdang, Malaysia
- Corresponding Author:
- Alkhafaji MK
Faculty of Engineering
Department of Computer and Communication System Engineering
Center of Excellence of Wireless and Photonics Network (WIPNET)
UPM, 43400-Serdang, Malaysia
Tel: +60 3-8946 6283
E-mail: [email protected]
Received Date: July 27, 2016; Accepted Date: September 17, 2016; Published Date: September 23, 2016
Citation: Alkhafaji MK, Sahbudin RKZ, Ismail AB, Hashim SJ (2016) Design of a Selective Filter-Antenna with Low Insertion Loss and High Suppression Stopband for WiMAX Applications. Int J Sens Netw Data Commun 5:147. doi: 10.4172/2090-4886.1000147
Copyright: © 2016 Alkhafaji MK, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
This paper presents a selective quasi–elliptic bandpass filter-antenna. The presented filter-antenna has a low insertion loss in the passband and relatively high stopband rejection. This structure consists of a quasi–elliptic bandpass filter direct coupled with patch antenna. The bandpass filter consists of four (λ/4) spiral square resonators. It has operates between (3.25–3.6) GHz so it is suitable for WiMAX applications. A CST Microwave Studio Suite software has used to simulate the filter-antenna circuit. The simulated results of the patch antenna and the results of the filter-antenna appears a good matching between the two circuits.