volume | PIER Journals

Abstract

A coplanar waveguide fed asymmetric rectangular antenna with sufficient WLAN-band rejection is presented for ultra-wideband applications. The antenna uses an asymmetric rectangular patch, modified feedline, and defected coplanar ground plane for obtaining ultra-wideband performance. An inverted-L shaped slit in the radiating patch is used for realizing the WLAN band-rejection. The antenna is designed on 1.6 mm thick FR-4 substrate having an area of 12×16 mm² (0.169λ_L×0.225λ_L). An impedance bandwidth of 11.49 GHz with a WLAN band-notch from 5.15-5.86 GHz is achieved. In addition to this, desirable radiation characteristics in terms of stable radiation patterns, peak realized gain of 4.5 dBi, and maximum total efficiency of 81% are achieved in the pass-band. In the notched-band, the peak gain and total efficiency reduces to -1.3 dB and 40%, respectively. Measured results agree well with simulated results. This antenna structure has fractional bandwidth of 115.18% and a bandwidth dimension ratio of 3029, which is comparable or better than that of similar structures available in the literature. The proposed antenna has desirable time domain performance in terms of fidelity factor, group delay, isolation and S₂₁ phase.

1. Schantz, H. G., "A brief history of UWB antennas," IEEE Aerospace and Electronic Systems Magazine, Vol. 19, No. 4, 22-26, 2004.
doi:10.1109/MAES.2004.1301770 Google Scholar

2. Wiesbeck, W., G. Adamiuk, and C. Sturm, "Basic properties and design principles of UWB antennas," Proceedings of the IEEE, Vol. 97, No. 2, 372-385, 2009.
doi:10.1109/JPROC.2008.2008838 Google Scholar

3. Federal Communication Commission "First-order and report: Revision of Part 15 of the commission’s rules regarding UWB transmission systems,", 2002. Google Scholar

4. Electronic Communication Committee (ECC), , The European table of frequency allocations and applications, ERC report 25, 2014.

5. Cicchetti, R., E. Miozzi, and O. Tesla, "Wideband and UWB antennas for wireless applications: A comprehensive review," International Journal of Antennas and Propagation, Hindawi Publishing Corporation, Vol. 2017, 1-45, 2017. Google Scholar

6. Kumar, G. and R. Kumar, "A survey on planar ultra-wideband antennas with band-notch characteristics: Principle, design, and applications," AEU --- International Journal of Electronics and Communications, Vol. 10, 76-98, September 2019.
doi:10.1016/j.aeue.2019.07.004 Google Scholar

7. Liu, J. F., W. Tang, M. Wang, H. C. Zhang, H. F. Ma, X. Fu, and T. J. Cui, "A dual-mode UWB antenna for pattern diversity application," IEEE Transaction on Antennas and Propagation, Vol. 68, No. 4, 3219-3224, February 2020.
doi:10.1109/TAP.2019.2935674 Google Scholar

8. Singh, D., B. K. Mishra, and S. Yadav, "An UWB antenna with dual notched-band characteristics at WLAN band and X-band application," Optical and Wireless Technologies, 625-630, Springer, Singapore, 2020. Google Scholar

9. Yalduz, H., T. E. Tabaru, V. T. Kilic, and M. Turkmen, "Design and analysis of low-profile and low-SAR full-textile UWB wearable antenna with metamaterial for WBAN applications," AEU --- International Journal of Electronics and Communications, Vol. 126, 153465, November 2020. Google Scholar

10. Kumar, M. and V. Nath, "A circularly polarized printed elliptical wide-slot antenna with high bandwidth-dimension-ratio for wireless applications," Wireless Networks, Vol. 26, No. 7, 5485-5499, June 2020.
doi:10.1007/s11276-020-02399-9 Google Scholar

11. Chen, Q., H. Zhang, X. L. Min, and L. C. Yang, "Compact CPW-fed dual-band linearly and circularly polarized monopole antenna for WiMAX and WLAN," Microwave Journal, Vol. 62, No. 5, 68-84, 2019. Google Scholar

12. Tran, H. H. and T. T. Le, "Ultra-wideband, high-gain, high-efficiency, circularly polarized Archimedean spiral antenna," AEU --- International Journal of Electronics and Communications, Vol. 109, 1-7, September 2019.
doi:10.1016/j.aeue.2019.07.006 Google Scholar

13. Kumar, R. and R. K. Chaudhary, "Compact asymmetric cross-shaped rectangular dielectric resonator antenna for wideband circular polarization," Microwave and Optical Technology Letters, Vol. 61, No. 7, 1863-1873, July 2019.
doi:10.1002/mop.31808 Google Scholar

114. Tran, H. H., N. Hussain, and T. T. Le, "Low-profile wideband circularly polarized MIMO antenna with polarization diversity for WLAN applications," AEU --- International Journal of Electronics and Communications, Vol. 108, 172-180, August 2019.
doi:10.1016/j.aeue.2019.06.028 Google Scholar

15. Kumar, R. and R. K. Chaudhary, "Investigation of higher-order modes excitation through F-shaped slot in rectangular dielectric resonator antenna for wideband circular polarization with broadside radiation characteristics," International Journal of RF and Microwave Computer-Aided Engineering, Vol. 28, No. 6, August 2018. Google Scholar

16. Kumar, M. and V. Nath, "Dual-band dual-polarized stacked octagonal fractal patch antenna with nonlinear manipulation," IEEE Radio and Antenna Days of the Indian Ocean (RADIO), 1-4, 2018. Google Scholar

17. Mondal, T., S. Maity, R. Ghatak, and S. R. B. Chaudhuri, "Design and analysis of a wideband circularly polarised perturbed psi-shaped antenna," IET Microwaves, Antennas & Propagation, Vol. 12, No. 9, 1582-1586, July 2018.
doi:10.1049/iet-map.2017.0569 Google Scholar

18. Tewari, M., A. Yadav, and R. P. Yadav, "Polarization reconfigurable circular patch antenna: Parasitic stub," International Conference on Wireless Communications, Signal Processing and Networking (WiSPNET), 1083-1086, 2017.
doi:10.1109/WiSPNET.2017.8299929 Google Scholar

19. Kumar, V. and B. Gupta, "On-body measurements of SS-UWB patch antenna for WBAN applications," AEU --- International Journal of Electronics and Communications, Vol. 70, No. 5, 668-675, May 2016.
doi:10.1016/j.aeue.2016.02.003 Google Scholar

20. Fujita, K., K. Yoshitomi, K. Yoshida, and H. Kanaya, "A circularly polarized planar antenna on flexible substrate for ultra-wideband high-band applications," AEU --- International Journal of Electronics and Communications, Vol. 69, No. 9, 1381-1386, September 2015.
doi:10.1016/j.aeue.2015.06.005 Google Scholar

21. Altaf, A., Y. Yang, K. Lee, and K. C. Hwang, "Circularly polarized Spidron fractal dielectric resonator antenna," IEEE Antennas and Wireless Propagation Letters, Vol. 14, 1806-1809, April 2015. Google Scholar

22. Ganguly, D., D. Guha, and Y. M. M. Antar, "Cross-finned UWB monopole for wireless applications: Design insight and characterization," AEU --- International Journal of Electronics and Communications, Vol. 116, 153055, March 2020.
doi:10.1016/j.aeue.2019.153055 Google Scholar

23. Garg, R. K., M. V. D. Nair, S. Singhal, and R. Tomar, "A new type of compact ultra-wideband planar fractal antenna with WLAN band-rejection," Microwave and Optical Technology Letters, Vol. 62, No. 7, 2537-2545, July 2020.
doi:10.1002/mop.32304 Google Scholar

24. Chen, Y. and C. F. Wang, Characteristic Modes: Theory and Applications in Antenna Engineering, John Wiley & Sons, 2015.
doi:10.1002/9781119038900

25. Yla-Oijala, P., "Generalized theory of characteristic modes," IEEE Transactions on Antennas and Propagation, Vol. 67, No. 6, 3915-3923, June 2019.
doi:10.1109/TAP.2019.2905794 Google Scholar

26. Zhang, Q., R. Ma, W. Su, and Y. Gao, "Design of a multimode UWB antenna using characteristic mode analysis," IEEE Transactions on Antennas and Propagation, Vol. 66, No. 7, 3712-3717, July 2018.
doi:10.1109/TAP.2018.2835370 Google Scholar

27. Park, D., L. Qu, and H. Kim, "Compact circularly polarised antenna utilising the radiation of the ground plane based on the theory of characteristic modes," IET Microwaves, Antennas & Propagation, Vol. 13, No. 10, 1509-1514, August 2019.
doi:10.1049/iet-map.2018.5098 Google Scholar

28. Chunling, C., "Characteristic mode analysis and design of a slot-loaded low-profile wideband microstrip patch antenna," Microwave and Optical Technology Letters, Vol. 62, No. 3, 1374-1379, March 2020.
doi:10.1002/mop.32157 Google Scholar

29. Singh, H. V. and S. Tripathi, "Compact UWB MIMO antenna with cross-shaped unconnected ground stub using characteristic mode analysis," Microwave and Optical Technology Letters, Vol. 61, No. 7, 1874-1881, July 2019.
doi:10.1002/mop.31792 Google Scholar

30. Quintero, G., J. F. Zurcher, and A. K. Skrivervik, "System fidelity factor: A new method for comparing UWB antennas," IEEE Transactions on Antennas and Propagation, Vol. 59, No. 7, 2502-2512, July 2011. Google Scholar

31. Kwon, D. H., "Effect of antenna gain and group delay variations on pulse-preserving capabilities of ultra-wideband antennas," IEEE Transactions on Antennas and Propagation, Vol. 54, No. 8, 2208-2215, August 2006.
doi:10.1109/TAP.2006.879189 Google Scholar

Mr. Rahul Kumar Garg

Dr. Maroor Vikraman Deepak Nair

Dr. Sarthak Singhal

Dr. Raghuvir S. Tomar