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Design of compact frequency agile filter-antenna using reconfigurable ring resonator bandpass filter for future cognitive radios

Published online by Cambridge University Press:  28 January 2018

Hany A. Atallah*
Affiliation:
Electrical Engineering, Faculty of Engineering, South Valley University, Qena 83523, Egypt
Adel B. Abdel-Rahman
Affiliation:
Electrical Engineering, Faculty of Engineering, South Valley University, Qena 83523, Egypt
Kuniaki Yoshitomi
Affiliation:
School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395, Japan
Ramesh K. Pokharel
Affiliation:
School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395, Japan
*
Author for correspondence: Hany A. Atallah, E-mail: h.atallah@eng.svu.edu.eg

Abstract

In this paper, a new miniaturized frequency agile filter-antenna with a wide reconfigurable frequency band is proposed for interweave cognitive radios (CRs). A tunable bandpass filter (BPF) composed of a symmetrical ring resonator is cascaded to the feed line of an ultra-wideband planar antenna. The structure of the proposed ring resonator BPF is simple and compact so that the total size of the proposed filter-antenna is smaller than that of a conventional system made of a separate antenna and BPF. The reconfigurability of the proposed filter-antenna is achieved by changing the operating frequency of the BPF by loading the ring resonator with a single varactor diode at its center. The fabricated prototype has successfully achieved a wide operational bandwidth of 1.43 GHz which covers continuous narrow bands from 4.65 to 6.08 GHz. Moreover, the operating tunable narrow bands have stable radiation characteristics. Good agreement between measurement and simulation results is demonstrated.

Type
Research Papers
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2018 

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References

1.Tawk, Y, Costantine, J and Christodoulou, CG (2014) Cognitive radio and antenna functionalities: a tutorial [Wireless Corner]. IEEE Antennas and Propagation Magazine 56(1), 231243.Google Scholar
2.Ojaroudi, N, Ghadimi, N, Ojaroudi, Y and Ojaroudi, S (2014) A novel design of microstrip antenna with reconfigurable band rejection for cognitive radio applications. Microwave and Optical Technology Letters 56, 29983003.CrossRefGoogle Scholar
3.Le, DT and Karasawa, Y (2012) A simple broadband antenna for MIMO applications in cognitive radio. IEICE Transactions on Communications E95-B(1), 1826.CrossRefGoogle Scholar
4.Costantine, J, Tawk, Y, Barbin, SE and Christodoulou, CG (2015) Reconfigurable antennas: design and applications. Proceedings of the IEEE 103(3), 424437.Google Scholar
5.Hussain, R and Sharawi, MS (2015) A cognitive radio reconfigurable MIMO and sensing antenna system. IEEE Antennas and Wireless Propagation Letters 14, 257260.Google Scholar
6.Ge, L and Luk, K-M (2014) A band-reconfigurable antenna based on directed dipole. IEEE Transactions on Antennas and Propagation 62, 6471.Google Scholar
7.Al-Husseini, M, Kabalan, KY, El-Hajj, A and Christodoulou, CG (2013) Reconfigurable microstrip antennas for cognitive radio. In Kishk, A (ed.). Advancement in Microstrip Antennas with Recent Applications. Croatia: InTech, pp. 337362.Google Scholar
8.Kakhki, MB and Rezaei, P (2017) Reconfigurable microstrip slot antenna with DGS for UWB applications. International Journal of Microwave and Wireless Technologies 9(7), 16. doi: 10.1017/S1759078717000034.Google Scholar
9.Mansoul, A, Ghanem, F, Hamid, MR and Trabelsi, M (2014) A selective frequency-reconfigurable antenna for cognitive radio applications. IEEE Antennas and Wireless Propagation Letters 13, 515518.CrossRefGoogle Scholar
10.Krishna, DR, Muthukumar, M and Pandharipande, VM (2015) Design and development of reconfigurable rectangular patch antenna array for tri-band applications. AEU International Journal of Electronics and Communications 69(1), 5661.Google Scholar
11.Rajeshkumar, V and Raghavan, S (2015) A compact metamaterial inspired triple band antenna for reconfigurable WLAN/WiMAX applications. AEU International Journal of Electronics and Communications 69(1), 274280.Google Scholar
12.Cao, Y, Cheung, SW, Sun, XL and Yuk, TI (2014) Frequency-reconfigurable monopole antenna with wide tuning range for cognitive radio. Microwave and Optical Technology Letters 56, 145152.Google Scholar
13.Tawk, Y, Costantine, J, Avery, K and Christodoulou, CG (2011) Implementation of a cognitive radio front-end using rotatable controlled reconfigurable antennas. IEEE Transactions on Antennas and Propagation 59, 17731778.Google Scholar
14.Sulakshana, C and Anjaneyulu, L (2017) Reconfigurable antennas with frequency, polarization, and pattern diversities for multi-radio wireless applications. International Journal of Microwave and Wireless Technologies 9(1), 121132.Google Scholar
15.Tawk, Y, Costantine, J and Christodoulou, CG (2012) A varactor-based reconfigurable filtenna. IEEE Antennas and Wireless Propagation Letters 11, 716719.Google Scholar
16.Ramadan, AH, Costantine, J, Al-Husseini, M, Kabalan, KY, Tawak, Y and Christodoulou, CG (2014) Tunable filter-antennas for cognitive radio applications. Progress in Electromagnetics Research (PIER) B 57, 253265.CrossRefGoogle Scholar
17.Costantine, J, Tawak, Y, Woodland, J, Flaum, N and Christodoulou, CG (2014) Reconfigurable antenna system with a movable ground plane for cognitive radio. IET Microwaves, Antennas and Propagation 8(11), 858863.Google Scholar
18.Erfani, E, Nourinia, J, Ghobadi, C, Niroo-Jazi, M and Denidni, TA (2012) Design and implementation of an integrated UWB/reconfigurable-slot antenna for cognitive radio applications. IEEE Antennas and Wireless Propagation Letters 11, 7780.Google Scholar
19.Atallah, HA, Abdel-Rahman, AB, Yoshitomi, K and Pokharel, RK (2016) Compact frequency reconfigurable filtennas using varactor loaded T-shaped and H-shaped resonators for cognitive radio applications. IET Microwaves, Antennas and Propagation 10(9), 9911001.Google Scholar
20.Hong, J-S and Lancaster, MJ (2001) Microstrip Filters for RF/Microwave Applications Theory Analysis and Design, 1st edn. New York: Wiley & Sons.Google Scholar
21.Faria, JAB (2009) A novel approach to ring resonator theory involving even and odd mode analysis. IEEE Transactions on Microwave Theory and Techniques 57(4), 856862.Google Scholar
22.Zhang, XY and Xue, Q (2008) Novel centrally loaded resonators and their applications to bandpass filters. IEEE Transactions on Microwave Theory and Techniques 56(4), 913921.CrossRefGoogle Scholar
23.Wada, K and Hashimoto, O (2000) Fundamentals of open-ended resonators and their application to microwave filters. IEICE Transactions on Electronics E83-C(11), 17631775.Google Scholar
24.Chang, K (1996) Microwave Ring Circuits and Antennas. New York: Wiley.Google Scholar
25.Zhang, XY, Chen, J-X, Xue, Q and Li, S-M (2007) Dual-band bandpass filters using stub-loaded resonators. IEEE Microwave and Wireless Components Letters 17(8), 583585.CrossRefGoogle Scholar
26.Atallah, HA, Abdel-Rahman, AB, Yoshitomi, K and Pokharel, RK (2016) New compact tunable filter-antenna using varactor loaded ring resonator for cognitive radio front end system. In IEEE International Conference on Wireless Information Technology and Systems (ICWITS) and Applied Computational Electromagnetics (ACES), USA, pp. 271272.Google Scholar
27.CST (2015) Microwave Studio, ver. 2015, Computer Simulation Technology AG, Japan.Google Scholar
28.Balanis, CA (2005) Antenna Theory: Analysis and Design, 3rd edn. New York: Wiley Inter Science, Chap. 14.Google Scholar
29.Datasheet: PIN diode smv 1405, Skyworks-solutions. Available at http://www.skyworksinc.com/uploads/documents/Varactor_SPICE_Model_AN_200315C.pdf.Google Scholar