volume | PIER Journals

Abstract

This paper proposes a coplanar waveguide-fed slot antenna with vertical rounded bow-tie slots for wideband harmonic suppression. Higher-order harmonics up to nine times the fundamental resonant frequency (9f_o) of the slot antenna was successfully suppressed by adding the slots in the middle of the two slot arms. A prototype of the antenna that resonates at 1 GHz was fabricated. The measured input reflection coefficient of the antenna remains over -3 dB at up to 9.15 GHz, which demonstrates the wideband harmonic suppression capabilities.

1. Radisic, V., Y. Qian, and T. Itoh, "Novel architectures for high-efficiency amplifiers for wireless applications," IEEE Trans. Microw. Theory Tech., Vol. 46, No. 11, 1901-1909, Nov. 1998.
doi:10.1109/22.734508 Google Scholar

2. Park, J. Y., S. M. Han, and T. Itoh, "A rectenna design with harmonic-rejecting circular-sector antenna," IEEE Antennas Wireless Propag. Lett., Vol. 3, 52-54, 2004.
doi:10.1109/LAWP.2004.827889 Google Scholar

3. Kim, Y. and S. Lim, "2.4-GHz high-efficiency rectenna using an in-phase partially reflective surface and high-order harmonic reject bandpass filter," Electromagnetics, Vol. 34, No. 6, 463-473, 2014.
doi:10.1080/02726343.2014.922399 Google Scholar

4. Tian, X., P. M. Lee, and J. S. Ho, "Control of wireless power transfer to a bioelectronic device by harmonic feedback," AIP Advances, Vol. 8, 095308, 2018.
doi:10.1063/1.5030600 Google Scholar

5. Lin, X. C. and L. T. Wang, "A broadband CPW-fed loop slot antenna with harmonic control," IEEE Antennas Wireless Propag. Lett., Vol. 2, 323-325, 2003. Google Scholar

6. Tu, W. H., "Compact harmonic-suppressed coplanar waveguide-fed inductively coupled slot antenna," IEEE Antennas Wireless Propag. Lett., Vol. 7, 543-545, 2008. Google Scholar

7. Sujith, R., S. Mridula, P. Binu, D. Laila, R. Dinesh, and P. Mohanan, "Compact CPW-fed ground defected H-shaped slot antenna with harmonic suppression and stable radiation characteristics," Electron. Lett., Vol. 46, No. 12, 812-814, Jun. 2010.
doi:10.1049/el.2010.0236 Google Scholar

8. Ma, Z. K. and G. A. E. Vandenbosch, "Wideband harmonic rejection filtenna for wireless power transfer," IEEE Trans. Antennas Propag., Vol. 62, No. 1, 371-377, Jan. 2014.
doi:10.1109/TAP.2013.2287009 Google Scholar

9. Sun, G. H., S. W. Wong, L. Zhu, and Q. X. Chu, "A compact printed filtering antenna with good suppression of upper harmonic band," IEEE Antennas Wireless Propag. Lett., Vol. 15, 1349-1352, 2016.
doi:10.1109/LAWP.2015.2508918 Google Scholar

10. Zang, Y., H. Zhai, L. Xi, and L. Li, "A compact microstrip antenna with enhanced bandwidth and ultra-wideband harmonic suppression," IEEE Trans. Antennas Propag., Vol. 67, No. 3, 1969-1974, Mar. 2019.
doi:10.1109/TAP.2019.2891757 Google Scholar

11. Yeo, J., "Compact CPW-fed slot antenna using stepped impedance slot resonators and a band-stop filter for wideband harmonic suppression," International Journal of Civil Engineering and Technology, Vol. 9, 410-416, Dec. 2018. Google Scholar

12. Yeo, J. and J. I. Lee, "Compact CPW-fed half-ring-shaped slot antenna for harmonic suppression applications," Microw. Opt. Technol. Lett., Vol. 57, No. 5, 1102-1104, May 2015.
doi:10.1002/mop.29022 Google Scholar

Prof. Junho Yeo