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Compact modified ‘T’ slot circular patch quad band antenna for MIMO applications

Published online by Cambridge University Press:  08 July 2016

Chithradevi Rajagopal ,
Sreeja Balakrishnapillai Suseela ,
Nafiza Noorullakhan  and
Radha Sankararajan
Chithradevi Rajagopal
Affiliation:
Department of ECE, SSN College of Engineering, Chennai, India. Phone: 09790915273
Sreeja Balakrishnapillai Suseela*
Affiliation:
Department of ECE, SSN College of Engineering, Chennai, India. Phone: 09790915273
Nafiza Noorullakhan
Affiliation:
Department of ECE, SSN College of Engineering, Chennai, India. Phone: 09790915273
Radha Sankararajan
Affiliation:
Department of ECE, SSN College of Engineering, Chennai, India. Phone: 09790915273
*
Corresponding author:B.S. Sreeja Email: sreejabs@ssn.edu.in
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Abstract

Compact modified T-slot circular patch antenna for multiple input multiple output (MIMO) applications, which has good response for four operating frequency bands is developed. Here the design consists of a circular patch with a new slot loaded T- shape on one side of the substrate and a feeder line on the other side of the substrate. A shorting pin is located between the patch and the feeder line. This proposed antenna resonates at the frequencies of 2, 4.8, 5.4, and 6.2 GHz covering the S-band, C-band, and LTE applications. The independent tuning of frequency bands is achieved by varying the length of the slots. By independent tuning of frequency bands, the selection of interested frequency band is achieved. The single element with miniaturized size of 1.945λ × 1.945 λ (30 × 30 mm2) is achieved including the feed line. The antenna has been tested for MIMO applications. The measured envelope correlation coefficient between the two elements, which are spaced 0.139 λ is <0.1(low correlation) and mutual coupling is found to be in the range of −20 dB to −80 dB. The simulation and measurement results of reflection coefficient, mutual coupling, and radiation pattern are presented.

Keywords

Modified T-slotCircular patchFrequency tuningMultiple input multiple output (MIMO)Envelope correlation coefficient (ECC)Mutual coupling
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 9 , Issue 4 , May 2017 , pp. 865 - 873
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2016 

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References

REFERENCES

[1] Elsadek, H.: Microstrip antennas for mobile wireless communication systems, in Mobile and Wireless Communications Network Layer and Circuit Level Design, Salma Ait Fares and Fumiyuki Adachi (Ed), InTech, Europe, China, 163–189, 2010.Google Scholar
[2] Faisal, G.M.; Quboa, K.M.; Ali, D.M.: Quad-band dual-layer microstrip antenna design for mobile handset. Am. J. Elect. Electron. Eng., 2 (2) (2014), 51–56.Google Scholar
[3] Ni, T.; Jiao, Y.-C.; Weng, Z.-B.; Zhang, L.: T-shaped antenna loading T-shaped slots for multiple band operation. Prog. Electromag. Res. C, 53 (2014), 45–53.CrossRefGoogle Scholar
[4] Ansari, J.A.; Verma, S.; Singh, A.: Design and Investigation of disk patch antenna with Quad C-slots for multiband operations. Int. J. Microw. Sci. Technol. Hindawi Pub. Corp., 2014 (2014), 1–6.Google Scholar
[5] Das, S. et al. : Analysis of a miniaturized multi-resonant wideband slotted microstrip antenna with modified ground plane. IEEE Antennas Wireless Propag. Lett., 14 (2015), 60–63.Google Scholar
[6] Liu, W.-C.; Ghavami, M.; Chung, W.-C.: Triple-frequency meandered monopole antenna with shorted parasitic strips for wireless application. IET Microw. Antennas Propag., 3 (7) (2009), 1110–1117.Google Scholar
[7] Sheta, A.F.; Mohra, A.S.; Mahmoud, S.F.: Modified compact H-shaped microstrip antenna for tuning multi-band operation. IEEE National Radio Science Conf., 18–20 March 2008, 1–6.Google Scholar
[8] Sun, X.; Chun, F.; Zeng, G.; Yang, H.-C.: A Novel compact planar multi-Band antenna for GPS, WLAN and WIMAX applications. IEEE Microwave Conf. Proc. (CJMW), China-Japan Joint, 20–22 April 2011, 1–3.Google Scholar
[9] Blanch, S.; Romeu, J.; Corbella, I.: Exact representation of antenna system diversity performance from input parameter description. Electron. Lett., 39 (9) (2003), 705–707.Google Scholar
[10] Kharche, S.; Reddy, G.S.; Mukherjee, B. et al. : MIMO antenna for Bluetooth, Wi-Fi, Wi-MAX and UWB Applications. Prog. Electromag. Res. C, 52 (2014), 53–62.Google Scholar
[11] Karimian, R.; Oraizi, H.; Fakhte, S.; Farahani, M.: Novel F-shaped quad- band printed slot antenna for WLAN and WiMAX MIMO systems. IEEE Antennas Wireless Propag. Lett., 12 (2013), 405–408.Google Scholar
[12] Ali Nezhad, S.M.; Hassani, H.R.: A novel tri band E-shaped printed monopole antenna for MIMO applications. IEEE Antenna Propag. Lett., 9 (2010), 576–579.CrossRefGoogle Scholar
[13] Balanis, C.A.: Antenna Theory-Analysis and Design, 3rd ed., John Wiley & Sons, Inc, United States, 2005.Google Scholar
[14] Kildal, P.-S. et al. : Correlation & capacity of MIMO systems and mutual coupling, radiation efficiency & diversity gain of their antennas: simulations and measurements in a reverberation chamber. IEEE Commun. Mag., 42 (12) (2004), 104–112.Google Scholar
[15] Lu, J.-H.; Huang, B.-J.: Planar compact multi-band monopole-slot antenna for IEEE 802.16 m application, IEEE AP-S, (2013), 1710–1711.Google Scholar