volume | PIER Journals

Abstract

The article presents a multiband symmetrically placed two elements, inverted-F multiple inputs multiple outputs (MIMO) antenna for wireless LAN (WLAN), Industrial, Society and Medical (ISM) band, S-/C-band applications. Decoupling (S₁₂ < -15 dB) between the two antenna elements of MIMO antenna is improved by introducing metallic vias at the top ends of the patch. The MIMO antenna has been fabricated and measured on a piece of low-cost, low-profile, FR-4 substrate. A combination of parasitic loading of 4-units (quadruplet) of square-split ring resonators (SRRs) and complementary split ring resonator (CSRR) cells have been used to achieve quad-bands for lower than -10 dB total active reflection coefficients and additionally to improve isolation between antenna elements. The paper also presents the tabularized and graphical investigations of the analyzed and measured resultant MIMO parameters like; envelope correlation coefficient (ECC), diversity gain (DG), total active reflection coefficients (TARC), MIMO-VSWR (voltage standing wave ratio), channel capacity loss (CCL), etc. and are found approximately close to each other with small acceptable errors. The other important parameters (reflection coefficients, radiation pattern, E-plane and H-plane polar plots, electric field vector (E) distribution, and current density vector (J) distribution) of the proposed antenna were also demonstrated and measured using a vector network analyzer (Agilent N5247A VNA) and 18 GHz Anechoic chamber in the microwave research laboratory. The MIMO (1×2) antenna is best suitable for Bluetooth/WLAN/Wi-Fi (2.45-2.57 GHz) and ISM band, FIXED, MOBILE, RADIO Location, Amateur & Amateur-satellite service (2.45 GHz) within impedance bandwidth (S₁₁ < -10 dB) from 2.45-2.57 GHz lower band, and n46 (5.40-5.49 GHz) upper band.

1. Varshney, A., N. Cholake, and V. Sharma, "Low-cost ELC-UWB fan-shaped antenna using parasitic SRR triplet for ISM band and PCS applications," International Journal of Electronics Letters, Vol. 10, No. 4, 391-402, 2022.
doi:10.1080/21681724.2021.1966655 Google Scholar

2. Varshney, A., et al., "Dodecagon-shaped frequency reconfigurable antenna practically loaded with 3- delta structures for ISM band and wireless applications," IETE Journal of Research, 1-13, Feb. 17, 2022. Google Scholar

3. Hussain, R. and M. S. Sharawi, "A low profile compact reconfigurable MIMO antenna for cognitive radio applications," 9th European Conference on Antennas and Propagation (EuCAP), 1-4, Lisbon, Portugal, 2015. Google Scholar

4. Shindhja, N. M. M. and A. Varshney, "Hybrid β-indexing fractal slotted multiband antenna for electronics wireless sensor applications," Journal of Electronics, Electromedical Engineering, and Medical Informatics, Vol. 5, No. 2, 59-68, Apr. 2023.
doi:10.35882/jeeemi.v5i2.283 Google Scholar

5. Evangelin, P. S., T. M. Neebha, A. D. Andrushia, J. Roopa Jeyasingh, A. Varshney, and X. Anitha Mary, "Design and analysis of meander slitted monopole antenna for wireless application," 2022 6th International Conference on Devices, Circuits, and Systems (ICDCS), 480-483, Coimbatore, India, 2022. Google Scholar

6. Varshney, A., V. Sharma, T. M. Neebha, and R. Kumar, "A compact low-cost impedance transformer-fed wideband monopole antenna for Wi-MAX N78-band and wireless applications," Printed Antennas, Vol. 1, 315-328, CRC Press, 2022.
doi:10.1201/9781003347057-20 Google Scholar

7. Hadj Sadok, M., Y. Lamhene, and S. Berkani, "High-gain low-profile EBG resonator antenna based on quasi-icosahedral shapes," J. Electron. Mater., Vol. 52, 140-152, 2023.
doi:10.1007/s11664-022-10046-6 Google Scholar

8. Tahseen, H. U., L. Yang, and X. Zhou, "Design of FSS-antenna-radome system for airborneand ground applications," IET Commun., Vol. 15, 1691-1699, 2021.
doi:10.1049/cmu2.12181 Google Scholar

9. Hannan, S., M. T. Islam, M. S. Soliman, M. R. Faruque, N. Misran, and M. S. Islam, "A co-polarization-insensitive metamaterial absorber for 5G n78 mobile devices at 3.5 GHz to reduce the specific absorption rate," Scientific Reports, Vol. 12, No. 1, 1-13, 2022.
doi:10.1038/s41598-021-99269-x Google Scholar

10. Torabi, Y. and R. Omidi, "Novel metamaterial compact planar MIMO antenna systems with improved isolation for WLAN application," Wireless Pers. Commun., Vol. 102, 399-410, 2018.
doi:10.1007/s11277-018-5848-5 Google Scholar

11. Deng, J. Y., J. Y. Li, L. Zhao, and L. X. Guo, "A dual-band inverted-F MIMO antenna with enhanced isolation for WLAN applications," IEEE Antennas and Wireless Propagation Letters, Vol. 16, 2270-2273, 2017.
doi:10.1109/LAWP.2017.2713986 Google Scholar

12. Li, Q., C. Ding, R. Yang, M. Tan, G. Wu, et al. "Mutual coupling reduction between patch antennas using meander line," International Journal of Antennas and Propagation, Vol. 2018, 1-7, Article ID 2586382, Hindawi, 2018. Google Scholar

13. Nadeem, I. and D.-Y. Choi, "Study on mutual coupling reduction technique for MIMO antennas," IEEE Access, Vol. 2018, No. 2885558, 1-25, 2018. Google Scholar

14. Zhao, L. and K.-L. Wu, "A dual-band coupled resonator decoupling network for two coupled antennas," IEEE Transactions on Antennas and Propagation, Vol. 63, No. 7, 2843-2850, Jul. 2015.
doi:10.1109/TAP.2015.2421973 Google Scholar

15. Mashagba, H. A., H. A Rahim, I. Adam, et al. "A hybrid mutual coupling reduction technique in a dual-band MIMO textile antenna for WBAN and 5G applications," IEEE Access, Vol. 9, No. 12, 150768-150780, Oct. 2021. Google Scholar

16. Guo, J.-Y., F. Liu, G.-D. Jing, L.-Y. Zhao, et al. "Mutual coupling reduction of multiple antenna systems," Frontiers of Information Technology & Electronic Engineering, Vol. 21, No. 3, 366-376, 2020.
doi:10.1631/FITEE.1900490 Google Scholar

17. Al-Hasan, M., I. B. Mabrouk, E. R. F. Almajali, M. Nedil, and T. A. Denidni, "Hybrid isolator for mutual-coupling reduction in MMW MIMO antenna systems," IEEE Access, Vol. 7, 58466-58474, 2019.
doi:10.1109/ACCESS.2019.2914902 Google Scholar

18. Lee, W.-W. and B. Jang, "2 x 2 MIMO antenna system with different antenna types for mobile terminals," Microwave and Optical Technology Letters, Vol. 58, No. 6, 1337-1340, Jun. 2016.
doi:10.1002/mop.29811 Google Scholar

19. Iqbal, A., O. A. Saraereh, A. W. Ahmad, and S. Bashir, "Mutual coupling reduction using F-shaped stubs in UWB-MIMO antenna," IEEE Access, Vol. 6, 2755-2759, 2018.
doi:10.1109/ACCESS.2017.2785232 Google Scholar

20. Zhang, Q.-L., Y.-T. Jin, J.-Q. Feng, X. Lv, and L.-M. Si, "Mutual coupling reduction of microstrip antenna array using metamaterial absorber," IEEE Xplore, 1-3, 2015. Google Scholar

21. Alibakhshikenari, M., A. Salvucci, G. Polli, B. S. Virdee, et al. "Mutual coupling reduction using metamaterial supersubstrate for high performance & densely packed planar phased arrays," IEEE Transactions on Antennas and Propagation, Vol. 64, No. 5, 1653-1660, May 2016.
doi:10.1109/TAP.2016.2535540 Google Scholar

22. Saxena, G., P. Jain, and Y. K. Awasthi, "High diversity gain MIMO-antenna for UWB application with WLAN notch band characteristic including human interface devices," Wireless Personal Communications, Vol. 112, No. 1, 105-121, 2019.
doi:10.1007/s11277-019-07018-1 Google Scholar

23. Yadav, D., M. P. Abegaonkar, S. K. Koul, V. N. Tiwari, and D. Bhatnagar, "Two element band-notched UWB MIMO antenna with high and uniform isolation," Progress In Electromagnetics Research M, Vol. 63, 119-129, 2018.
doi:10.2528/PIERM17091106 Google Scholar

24. Singh, H. S., Investigations of MIMO Antenna for Smart Mobile Handsets and Their User Proximity, 23-32, Intech Open, 2019.

Mrs. Srujana Vahini Nandigama

Dr. Kunooru Bharath

Dr. Dasari Ramakrishna