TY - GEN
T1 - New compact tunable filter-antenna using varactor loaded ring resonator for cognitive radio front end system
AU - Atallah, Hany A.
AU - Abdel-Rahman, Adel B.
AU - Yoshitomi, Kuniaki
AU - Pokharel, Ramesh K.
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/5/4
Y1 - 2016/5/4
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84973546871&partnerID=8YFLogxK
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U2 - 10.1109/ROPACES.2016.7465417
DO - 10.1109/ROPACES.2016.7465417
M3 - Conference contribution
AN - SCOPUS:84973546871
T3 - 2016 IEEE/ACES International Conference on Wireless Information Technology, ICWITS 2016 and System and Applied Computational Electromagnetics, ACES 2016 - Proceedings
BT - 2016 IEEE/ACES International Conference on Wireless Information Technology, ICWITS 2016 and System and Applied Computational Electromagnetics, ACES 2016 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE/ACES International Conference on Wireless Information Technology, ICWITS 2016 and System and Applied Computational Electromagnetics, ACES 2016
Y2 - 13 March 2016 through 17 March 2016
ER -