volume | PIER Journals

Abstract

A compact triple band antenna for wearable applications is presented in this paper. The antenna exhibits dual mode operation for ON/OFF body communication. The antenna has a patch like radiation pattern for OFF body communication and monopole like radiation pattern for ON body communication. Triple bands are achieved by incorporating an annular ring patch with the triangular patch. Tuning of the antenna and impedance matching has been done using two open ended rectangular slots and two shorting pins. As a result, the antenna has patch like radiation pattern at 2.5 GHz (ISM band), 3.5 GHz (Wi Max band) bands and monopole like radiation pattern at 5.5 GHz (WLAN band) band. The proposed antenna is compact in nature with a size of 70 × 70 × 2.1 mm³. User comfort has been taken into care with the use of all textile materials to fabricate the antenna except the SMA connector. A full ground plane in the proposed antenna ensures minimum coupling with human body and thereby a low SAR (specific absorption rate) value. Investigation of the antenna has been performed in both free space and on body scenarios.

1. Song, C. T. P., P. S. Hall, H. Ghafouri-Shiraz, and D. Wake, "Triple band planar inverted F antennas for handheld devices," Electronics Letters, Vol. 36, No. 2, 112-114, 2000.

2. Mok, Wing Chi, Sai Hoi Wong, Kwai Man Luk, and Kai Fong Lee, "Single-layer single-patch dual-band and triple-band patch antennas," IEEE Transactions on Antennas and Propagation, Vol. 61, No. 8, 4341-4344, 2013.

3. Lee, Kai-Fong, Shing Lung Steven Yang, and Ahmed A. Kishk, "Dual-and multiband U-slot patch antennas," IEEE Antennas and Wireless Propagation Letters, Vol. 7, 645-647, 2008.

4. Lee, Kai F., K. M. Luk, K. M. Mak, and S. L. S. Yang, "On the use of U-slots in the design of dual-and triple-band patch antennas," IEEE Antennas and Propagation Magazine, Vol. 53, No. 3, 60-74, 2011.

5. Hsiao, Fu-Ren and Kin-Lu Wong, "Compact planar inverted-F patch antenna for triple-frequency operation," Microwave and Optical Technology Letters, Vol. 33, No. 6, 459-462, 2002.

6. Zhou, Yijun, Chi-Chih Chen, and John L. Volakis, "Dual band proximity-fed stacked patch antenna for tri-band GPS applications," IEEE Transactions on Antennas and Propagation, Vol. 55, No. 1, 220-223, 2007.

7. Dang, Lin, Zhen Ya Lei, Yong Jun Xie, Gao Li Ning, and Jun Fan, "A compact microstrip slot triple-band antenna for WLAN/WiMAX applications," IEEE Antennas and Wireless Propagation Letters, Vol. 9, 1178-1181, 2010.

8. Mandal, B. and S. K. Parui, "Wearable tri-band SIW based antenna on leather substrate," Electronics Letters, Vol. 51, No. 20, 1563-1564, 2015.

9. Simorangkir, Roy B. V. B., Yang Yang, Ladislau Matekovits, and Karu P. Esselle, "Dual-band dual-mode textile antenna on PDMS substrate for body-centric communications," IEEE Antennas and Wireless Propagation Letters, Vol. 16, 677-680, Aug. 2016.

10. Hong, Youngtaek, Jinpil Tak, and Jaehoon Choi, "Dual-band dual-mode patch antenna for on-on-off WBAN applications," Electronics Letters, Vol. 50, No. 25, 1895-1896, 2014.

11. Wang, Danqing, Ping Li, and Wei-Shi Peng, "A novel design for a dual-mode triple-band communication terminal antenna based on the quadrifilar helix antenna and the BeiDou satellite navigation system," Optik, Vol. 127, No. 18, 7300-7311, 2016.

12. Wang, Bao and Yuen Lo, "Microstrip antennas for dual-frequency operation," IEEE Transactions on Antennas and Propagation, Vol. 32, No. 9, 938-943, 1984.

13. Zhang, Xiao and Lei Zhu, "Patch antennas with loading of a pair of shorting pins toward flexible impedance matching and low cross polarization," IEEE Transactions on Antennas and Propagation, Vol. 64, No. 4, 1226-1233, 2016.

14. Jalil, M. E., M. K. A. Rahim, N. A. Samsuri, and N. A. Murad, "Triple band fractal koch antenna for wearable application," Progress In Electromagnetics Research Symposium Proceedings, 1285-1289, KL, MALAYSIA, 2012.

15. Nagarjun, R., Ginu George, D. Thiripurasundari, R. Poonkuzhali, and Z. C. Alex, "Design of a triple band planar bow-tie antenna for wearable applications," 2013 IEEE Conference on Information & Communication Technologies, 1185-1189, IEEE, 2013.

16. Andreuccetti, D., "An Internet resource for the calculation of the dielectric properties of body tissues in the frequency range 10 Hz-100 GHz," http://niremf.ifac.cnr.it/tissprop/, 2012.

17. IEEE standard for safety levels with respect to human exposure to radio frequency electromagnetic fields, 3 kHz to 300 GHz, IEEE Standard C95.1-2005, 2006.

18. Shirvani, Parisa, Farzad Khajeh-Khalili, and Mohammad H. Neshati, "Design investigation of a dual-band wearable antenna for tele-monitoring applications," AEU --- International Journal of Electronics and Communications, Vol. 138, 153840, 2021.

19. Musa, Umar, Shaharil Mohd Shah, Huda Bin Abdul Majid, Mohamad Kamal Abd Rahim, Muhammad Sani Yahya, Zainab Yunusa, Abubakar Salisu, and Zuhairiah Zainal Abidin, "Wearable dual-band frequency reconfigurable patch antenna for WBAN applications," Progress In Electromagnetics Research M, Vol. 120, 95-111, 2023.
doi:10.2528/PIERM23060705

20. Le, Tu Tuan and Tae-Yeoul Yun, "Wearable dual-band high-gain low-SAR antenna for off-body communication," IEEE Antennas and Wireless Propagation Letters, Vol. 20, No. 7, 1175-1179, 2021.

21. Zhou, Leitao, Shaojun Fang, and Xiao Jia, "Dual-band and dual-polarised circular patch textile antenna for on-/off-body WBAN applications," IET Microwaves, Antennas & Propagation, Vol. 14, No. 7, 643-648, 2020.

22. Musa, Umar, Shaharil Mohd Shah, Huda A. Majid, Ismail Ahmad Mahadi, Mohamad Kamal A. Rahim, Muhammad Sani Yahya, and Zuhairiah Zainal Abidin, "Design and analysis of a compact dual-band wearable antenna for WBAN applications," IEEE Access, Vol. 11, 30996-31009, 2023.

Dr. Shankar Bhattacharjee

Dr. Monojit Mitra