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Selectivity and in-band impedance enhancement of a compact slot antenna with defected ground structures

Published online by Cambridge University Press:  27 May 2019

Hailong Yang ,
Xiaoli Xi ,
Lili Wang ,
Yuchen Zhao  and
Xiaomin Shi
Hailong Yang
Affiliation:
Faculty of Automation and Information Engineering, Shaanxi Key Laboratory of Complex System Control and Intelligent, Xian University of Technology, Xian, 710048, People's Republic of China
Xiaoli Xi*
Affiliation:
Faculty of Automation and Information Engineering, Shaanxi Key Laboratory of Complex System Control and Intelligent, Xian University of Technology, Xian, 710048, People's Republic of China
Lili Wang
Affiliation:
Faculty of Automation and Information Engineering, Shaanxi Key Laboratory of Complex System Control and Intelligent, Xian University of Technology, Xian, 710048, People's Republic of China
Yuchen Zhao
Affiliation:
Faculty of Automation and Information Engineering, Shaanxi Key Laboratory of Complex System Control and Intelligent, Xian University of Technology, Xian, 710048, People's Republic of China
Xiaomin Shi
Affiliation:
Communication Engineering Department, Xi'an Shiyou University, Xi'an, People's Republic of China
*
Author for correspondence: Xiaoli Xi, E-mail: xixiaoli@xaut.edu.cn
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Abstract

In this study, a new ultra-wideband (UWB) band-edge selectivity antenna with a modified radiation slot using defected ground structure (DGS) is presented to obtain bandpass filtering reflection coefficient and gain performance. The well-designed DGS is designed on backside metallic of the substrate and can be seen as a low-pass filter that provides a good roll-off at a higher frequency. By connecting the DGS and the stepped slot and making them merge with each other, good cut-off property in the upper passband and better in-band impedance characteristics are obtained. Measured results show that the proposed design not only shows good band-edge selectivity in reflection coefficient and gain performance but also has a good impedance matching of −13.5 dB reflection coefficients and a good radiation efficiency of 90% in the operating frequencies. The measured bandwidth defined with the reflection coefficient less than −10 dB is from 3.1–11.2 GHz. Furthermore, the size of the filtering UWB antenna is 22 mm × 12 mm, which is smaller than many individual UWB antennas and UWB filters.

Keywords

Band-edge selectivitydefected ground structure (DGS)ultra-wideband (UWB) antenna
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 11 , Issue 10 , December 2019 , pp. 1010 - 1016
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2019 

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References

1.Revision of Part 15 of the Commission's Rule Regarding Ultra-Wide-band Transmission System Federal Communications Commission, 02-48, 2002.Google Scholar
2.Li, PK, You, CJ, Yu, HF, Li, X, Yang, YW and Deng, JH (2018) Codesigned high-efficiency single-layered substrate integrated waveguide filtering antenna with a controllable radiation null. IEEE Antennas and Wireless Propagation Letters 17, 295–298.Google Scholar
3.Nikolaou, S and Abbasi, MAB (2017) Design and development of a compact UWB monopole antenna with easily-controllable return loss. IEEE Transactions on Antennas and Propagation 65, 2063–2067.Google Scholar
4.Singhal, S and Singh, AK (2017) Asymmetrically CPW-fed ladder-shaped fractal antenna for UWB applications. Analog Integrated Circuits and Signal Processing 92, 91–101.Google Scholar
5.Manohar, M, Kshetrimayum, RS and Gogoi, AK (2017) A compact dual band-notched circular ring printed monopole antenna for super wideband applications. Radioengineering 26, 64–70.Google Scholar
6.Emadian, SR and Ahmadi-Shokouh, J (2015) Very small dual band-notched rectangular slot antenna with enhanced impedance bandwidth. IEEE Transactions on Antennas and Propagation 63, 4529–4534.Google Scholar
7.Sun, Y, Wen, G, Jin, H, Wang, P and Huang, Y (2013) Gain enhancement for wide bandwidth endfire antenna with I-shaped resonator (ISR) structures. Electronics Letters 49, 736-+.Google Scholar
8.Wong, S, Huang, T, Mao, C, Chen, Z and Chu, Q (2013) Planar filtering ultra-wideband (UWB) antenna with shorting pins. IEEE Transactions on Antennas and Propagation 61, 948–953.Google Scholar
9.Djaiz, A, Habib, MA, Nedil, M and Denidni, TA (2009) Design of UWB Filter -Antenna with Notched Band at 5.8 GHz, in 2009 IEEE Antennas and Propagation Society International Symposium: IEEE Conferences, 2009.Google Scholar
10.Kumar, SA, Dutt, GR and Parihar Manoj, S (2017) High selective integrated filter antenna for UWB application. Microwave and Optical Technology Letters 59, 1032–1037.Google Scholar
11.Ranjan, P, Raj, S, Upadhyay, G, Tripathi, S and Tripathi, VS (2017) Circularly slotted flower shaped UWB filtering antenna with high peak gain performance. AEU-International Journal of Electronics and Communications 81, 209–217.Google Scholar
12.Sahu, B, Singh, S, Meshram, MK and Singh, SP (2019) A new compact ultra-wideband filtering antenna with improved performance. Journal of Electromagnetic Waves and Applications 33, 107–124.Google Scholar
13.Yang, H, Xi, X, Zhao, Y, Wang, L and Shi, X (2018) Design of compact ultra-wideband slot antenna with improved band-edge selectivity. IEEE Antennas and Wireless Propagation Letters 6, 946–950.Google Scholar
14.Chu, Q, Mao, C and Zhu, H (2013) A compact notched band UWB slot antenna with sharp selectivity and controllable bandwidth. IEEE Transactions on Antennas and Propagation 61 , 3961–3966.Google Scholar
15.Zheng, Z, Chu, Q and Tu, Z (2011) Compact band-rejected ultrawideband slot antennas inserting with lambda/2 and lambda/4 resonators. IEEE Transactions on Antennas and Propagation 59, 390–397.Google Scholar
16.Gopikrishna, M, Das Krishna, D, Aanandan, CK, Mohanan, P and Vasudevan, K (2009) Design of a microstrip fed step slot antenna for UWB communication. Microwave and Optical Technology Letters 51, 1126–1129.Google Scholar
17.Bekasiewicz, A and Koziel, S (2016) Structure and design optimisation of compact UWB slot antenna. Electronics Letters 52, 681–682.Google Scholar
18.Liu, H, Li, Z and Sun, X (2004) An improved 1-D periodic defected ground structure for microstrip line. IEEE Microwave and Wireless Components Letters 14, 180–182.Google Scholar
19.Song, Y, Yang, G and Geyi, W (2014) Compact UWB bandpass filter with dual notched bands using defected ground structures. IEEE Microwave and Wireless Components Letters 24, 230–232.Google Scholar
20.Telzhensky, N and Leviatan, Y (2006) Novel method of UWB antenna optimization for specified input signal forms by means of genetic algorithm. IEEE Transactions on Antennas and Propagation 54, 2216–2225.Google Scholar