Hostname: page-component-8448b6f56d-dnltx Total loading time: 0 Render date: 2024-04-23T13:57:13.435Z Has data issue: false hasContentIssue false
  • English
  • Français

Dual circularly polarized multilayer MIMO antenna array with an enhanced SR-feeding network for C-band application

Published online by Cambridge University Press:  03 May 2017

Mahdi Jalali ,
Mohammad Naser-Moghadasi  and
Ramezan Ali Sadeghzadeh
Mahdi Jalali
Affiliation:
Faculty of Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
Mohammad Naser-Moghadasi*
Affiliation:
Faculty of Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
Ramezan Ali Sadeghzadeh
Affiliation:
Faculty of Electrical and Computer Engineering, K. N. Toosi University of Technology, Tehran, Iran
*
Corresponding author: M. Naser-Moghadasi Email: mn.moghaddasi@srbiau.ac.ir
Get access Rights & Permissions [Opens in a new window]

Abstract

Wide-band circularly polarized multi-input multi-output (MIMO) antenna array with a 2 × 4 feed network was proposed for C-band application. Different unique techniques were utilized in the proposed array to enhance the antenna characteristics, such as gain, 3 dB axial ratio bandwidth (ARBW), impedance tuning, and ruinous mutual coupling effects. A miniaturized dual-feed Tai chi-shaped antenna element with a pair of feeding points and a pair of eyebrow-shaped strips was presented for enhancing circular polarization (CP) purity and impedance matching. For a better improvement of CP features, a 2*4 MIMO sequentially rotated (MIMO-SR) feed network was used to achieve broader 3 dB ARBW. Besides, the MIMO feature of the feed network could control the left- and right-handed CP, respectively. Ultimately, specific forms of slot and slit structures were applied onto the top layer of MIMO feed network that provided a high isolation between the radiating elements and array network. Furthermore, the diversity gain (DG) was studied. The extracted measured results illustrated an impedance bandwidth of 3.5–8.2 GHz at port 1 and 3.5–8.3 GHz at port 2 for VWSR < 2 and 3 dB ARBW of 4.6–7.6 GHz at port 1 and 4.6–7.5 GHz at port 2. The peak gain of 9.9 dBi was at 6 GHz.

Keywords

AntennaBroad bandCircular polarizationMicrostripMulti-input multi-output (MIMO) networks
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 9 , Special Issue 8: Biomedical Applications of RF/Microwave and Optics Technologies , October 2017 , pp. 1741 - 1748
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2017 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1] Nayan, M.K.A.; Jamlos, M.F.; Jamlos, M.A.: Circularly polarized MIMO antenna array for point-to-point communication. Microw. Opt. Technol. Lett., 57 (1) (2015), 242–247.Google Scholar
[2] Mao, C.-X.; Chu, Q.-X.: Compact coradiator UWB-MIMO antenna with dual polarization. IEEE Trans. Antennas Propag., 59 (5) (2014), 4474–4480.Google Scholar
[3] Baek, S.; Lim, S.: Compact planar MIMO antenna array with Polarization diversity on single layer. Electron. Lett., 46 (13) (2010), 880–882.Google Scholar
[4] Shoaib, S.; Shoaib, I.; Shoaib, N.; Chen, X.; Parini, C.G.: Design and performance study of a dual-element multiband printed monopole antenna array for MIMO terminals. IEEE Antennas Wireless Propag. Lett., 13 (2014), 2813–2816.Google Scholar
[5] Ko, J.H.; Han, J.H.; Myung, N.H.: A broadband technique for a decoupling network in a compact antenna array in a MIMO system. Progr. Electromagn. Res. C, 52 (2014), 27–38.Google Scholar
[6] Li, J.-F.; Chu, Q.-X.; Huang, T.-G.: A compact wideband MIMO antenna with two novel bent slits. IEEE Trans. Antennas Propag., 60 (2) (2012), 482–489.Google Scholar
[7] Bhatti, R.A.; Choi, J.-H.; Park, S.-O.: Quad-band MIMO antenna array for portable wireless communications terminals. IEEE Antennas Wireless Propag. Lett., 8 (2009), 129–132.Google Scholar
[8] Jamali, J.; Sadeghzadeh, R.A.; Naser-Moghadasi, M.: A novel design of small square slot antenna with circular polarization characteristics for X-band. Electromagnetics Taylor & Francis, 33 (3) (2013), 249–255.Google Scholar
[9] Aribi, T.; Naser-Moghadasi, M.; Sadeghzadeh, R.A.: Broadband circularly polarized beam-steering antenna array for wireless applications. Microw. Opt. Technol. Lett., 56 (12) (2014), 2813–2817.Google Scholar
[10] Nasimuddin, X.Q.; Chen, Z.N.: Dual-square-ring-shaped slot antenna for wideband circularly polarized radiation. Microw. Opt. Technol. Lett., 56 (11) (2014), 2645–2649.Google Scholar
[11] Zheng, W.-C.; Zhang, L.; Li, Q.-X.; Zhou, Y.; Rong, R.: Dual-band dual-polarization compact bowtie antenna array for anti-interference MIMO WLAN. IEEE Trans. Antennas Propag., 62 (1) (2014), 237–246.Google Scholar
[12] Sim, C.-Y.-D.: Conical beam array antenna with polarization diversity. IEEE Trans. Antennas Propag., 60 (10) (2012), 4568–4572.Google Scholar
[13] Ling, X.M.; Li, R.L.: A novel dual-band MIMO antenna array with low mutual coupling for portable wireless devices. IEEE Antennas Wireless Propag. Lett., 10 (2011), 1039–1042.Google Scholar
[14] Antonino-Daviu, M.S.E.; Cabedo-Fabrés, M.; Ferrando-Bataller, M.; Salonen, E.T.: Improved planar wideband antenna element and its usage in a mobile MIMO system. IEEE Antennas Wireless Propag. Lett., 11 (2012), 144–147.Google Scholar
[15] Li, G.; Zhai, H.; Ma, Z.; Liang, C.; Yu, R.; Liu, S.: Isolation-improved dual-band MIMO antenna array for LTE/WiMAX mobile terminals. IEEE Antennas Wireless Propag. Lett., 13 (2014), 883–886.Google Scholar
[16] Li, Y.; Zhang, Z.; Deng, C.; Feng, Z.; Iskander, M.F.: 2-D planar scalable dual-polarized series-fed slot antenna array using single substrate. IEEE Trans. Antennas Propag., 62 (4) (2014), 2280–2283.Google Scholar
[17] Nigam, H.; Kumar, M.: A compact MIMO antenna design for 2.4 GHz ISM band frequency applications. Int. J. Electron. Comput. Sci. Eng., 3 (3) (2014), 33–42.Google Scholar
[18] Kazerooni, M.; Aghalari, M.: Size reduction and harmonic suppression of rat-race hybrid coupler using defected microstrip structure. Progr. Electromagn. Res. C, 26 (2011), 87–96.Google Scholar