New compact tunable filter-antenna using varactor loaded ring resonator for cognitive radio front end system

Hany A. Atallah, Adel B. Abdel-Rahman, Kuniaki Yoshitomi, Ramesh Pokharel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

In this paper, a novel compact filter-antenna with tunable frequency band is proposed and developed for interweave cognitive radio (CR) system. The antenna is fed by a microstrip line integrated with a ring resonator bandpass filter. Reconfiguration is achieved by centrally loading the ring resonator with only a single varactor diode. Furthermore, the simple biasing of the varactor diode has a small effect on the filter-antenna performance. The proposed design is fabricated and measured for verification purposes. Experimental results show that the proposed filter-antenna is capable of tuning over a wide operating band of 1.43 GHz covering continuous bands for interweave CR from 4.65 to 6.08 GHz. Moreover, the radiation patterns are stable over the operating frequency range. Good agreement is found between simulated and measured results.

Original languageEnglish
Title of host publication2016 IEEE/ACES International Conference on Wireless Information Technology, ICWITS 2016 and System and Applied Computational Electromagnetics, ACES 2016 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509012596
DOIs
Publication statusPublished - May 4 2016
EventIEEE/ACES International Conference on Wireless Information Technology, ICWITS 2016 and System and Applied Computational Electromagnetics, ACES 2016 - Honolulu, United States
Duration: Mar 13 2016Mar 17 2016

Publication series

Name2016 IEEE/ACES International Conference on Wireless Information Technology, ICWITS 2016 and System and Applied Computational Electromagnetics, ACES 2016 - Proceedings

Other

OtherIEEE/ACES International Conference on Wireless Information Technology, ICWITS 2016 and System and Applied Computational Electromagnetics, ACES 2016
CountryUnited States
CityHonolulu
Period3/13/163/17/16

All Science Journal Classification (ASJC) codes

  • Computational Mathematics
  • Signal Processing
  • Instrumentation
  • Computer Networks and Communications

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    Atallah, H. A., Abdel-Rahman, A. B., Yoshitomi, K., & Pokharel, R. (2016). New compact tunable filter-antenna using varactor loaded ring resonator for cognitive radio front end system. In 2016 IEEE/ACES International Conference on Wireless Information Technology, ICWITS 2016 and System and Applied Computational Electromagnetics, ACES 2016 - Proceedings [7465417] (2016 IEEE/ACES International Conference on Wireless Information Technology, ICWITS 2016 and System and Applied Computational Electromagnetics, ACES 2016 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ROPACES.2016.7465417