volume | PIER Journals

Abstract

An ultra-wideband (UWB) flexible antenna with a dual band-notched property is designed in this letter. This antenna is fed by a coplanar waveguide (CPW) tapered transmission line to achieve an impedance bandwidth of 1.95-35 GHz for VSWR<3. A double C-shaped slot within the monopole radiation patch and two L-shaped slots etched on the ground are introduced to reject the bands of 3.5 GHz (3.1-3.9 GHz) and 5.5 GHz (4.7-5.74 GHz) respectively, which are assigned to WiMax and WLAN applications. A Rogers4350 substrate is used to realize a low profile (0.29λ_L×0.22λ_L×0.00065λ_L, where λ_L is the free-space wavelength of the lowest operating frequency). The measured results show that the antenna has a UWB omnidirectional radiation characteristic that is suitable for UWB wireless communications.

1. Rahman, M. U., M. Nagshvarianjahromi, S. S. Mirjavadi, and A. M. Hamouda, "Compact UWB band-notched antenna with integrated bluetooth for personal wireless communication and UWB applications," Electronics, Vol. 8, 1-13, 2019.

2. Hood, A. Z., T. Karacolak, and E. Topsakal, "A small antipodal Vivaldi antenna for ultrawide-band applications," IEEE Antennas and Wireless Propagation Letters, Vol. 7, 656-660, 2008.
doi:10.1109/LAWP.2008.921352

3. Guo, Z., H. Tian, X. Wang, et al. "Bandwidth enhancement of monopole UWB antenna with new slots and EBG structures," IEEE Antennas and Wireless Propagation Letters, Vol. 12, 1550-1553, 2013.
doi:10.1109/LAWP.2013.2292063

4. Wang, Z., L. Qin, Q. Chen, et al. "Flexible UWB antenna fabricated on polyimide substrate by surface modification and in situ self-metallization technique," Microelectronic Engineering, Vol. 206, 12-16, 2019.
doi:10.1016/j.mee.2018.12.006

5. Simorangkir, R. B. V. B., A. Kiourti, and K. P. Esselle, "UWB wearable antenna with a full ground plane based on PDMS-embedded conductive fabric," IEEE Antennas and Wireless Propagation Letters, Vol. 17, 493-496, 2018.
doi:10.1109/LAWP.2018.2797251

6. Khaleel, H. R., H. M. Al-Rizzo, D. G. Rucker, and S. Mohan, "A compact polyimide-based UWB antenna for flexible electronics," IEEE Antennas and Wireless Propagation Letters, Vol. 11, 546-567, 2012.
doi:10.1109/LAWP.2012.2199956

7. Zhang, Y., Y. Zhang, D. Li, et al. "Compact vertically polarized omnidirectional ultrawideband antenna and its band-notched filtering application," IEEE Access, Vol. 7, 101681-101688, 2019.
doi:10.1109/ACCESS.2019.2930620

8. Chuang, C., T. Lin, and S. Chung, "A band-notched UWB monopole antenna with high notchband-edge selectivity," IEEE Transactions on Antennas and Propagation, Vol. 60, 4492-4499, 2012.
doi:10.1109/TAP.2012.2207327

9. Lee, C., J. Wu, C. G. Hsu, et al. "Balanced band-notched UWB filtering circular patch antenna with common-mode suppression," IEEE Antennas and Wireless Propagation Letters, Vol. 16, 2812-2815, 2017.

10. Deng, J. Y., S. Hou, L. Zhao, and L. Guo, "Wideband-to-narrowband tunable monopole antenna with integrated bandpass filters for UWB/WLAN applications," IEEE Antennas and Wireless Propagation Letters, Vol. 16, 2734-2737, 2017.
doi:10.1109/LAWP.2017.2743258

11. Bong, H., N. Hussain, S. Rhee, S. Gil, and N. Kim, "Design of an UWB antenna with two slits for 5G/WLAN-notched bands," Microwave and Optical Technology Letters, Vol. 16, 1295-1300, 2019.
doi:10.1002/mop.31670

12. Abu Safia, O., M. Nedil, L. Talbi, and K. Hettak, "Coplanar waveguide-fed rose-curve shape UWB monopole antenna with dual-notch characteristics," IET Microwaves, Antennas and Propagation, Vol. 12, 1112-1119, 2018.
doi:10.1049/iet-map.2017.0852

13. Li, W. T., X. W. Shi, and Y. Q. Hei, "Novel planar UWB monopole antenna with triple bandnotched characteristics," IEEE Antennas and Wireless Propagation Letters, Vol. 8, 1094-1098, 2009.
doi:10.1109/LAWP.2009.2033449

14. Mohamadzade, B., R. B. V. B. Simorangkir, R. M. Hashmi, et al. "A conformal band-notched ultrawideband antenna with monopole-like radiation characteristics," IEEE Antennas and Wireless Propagation Letters, Vol. 19, 203-207, 2020.
doi:10.1109/LAWP.2019.2958036

15. Zhang, X. and G. Wang, "A flexible monopole antenna with dual-notched band function for ultrawideband applications," International Journal of Antennas and Propagation, Vol. 2014, 1-5, 2014.

Dr. Xiao-Yan Zhang

Dr. Huihui Xu

Dr. Yan Xie

Dr. Qiutong Wu