Browse > Article
http://dx.doi.org/10.6109/jkiice.2014.18.12.2816

UWB Circular Loop Antenna with Circular Sectors  

Yeo, Junho (school of Computer and Communication Engineering, Daegu University)
Lee, Jong-Ig (Department of Electronics Engineering, Dongseo University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.18, no.12, 2014 , pp. 2816-2822 More about this Journal
Abstract
In this paper, a wideband loop antenna for UWB applications is studied. The structure of the proposed wideband loop antenna is a circular loop antenna with appended circular sectors to obtain an ultra-wideband characteristic. The circular sectors are used instead of conventional triangular sectors to match with the 50 ohm feed line. Optimal design parameters are obtained by analyzing the effects of the gap between the circular sectors and the radius of the circular loop on the input reflection coefficient and gain characteristics. The optimized wideband loop antenna is fabricated on an FR4 substrate with a dimension of 41 mm by 41 mm. Experiment results show that the proposed antenna has a frequency band of 3.1-11.0 GHz for a VSWR < 2.25, which assures the operation in the UWB band. Measured gain ranges 1.3-5.3 dBi in the UWB band.
Keywords
ultra-wideband; circular sectors; circular loop; loop antenna;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 C.-T. Chuang, T.-J. Lin, and S.-J. Chung, "A band-notched UWB monopole antenna with high notch-band-edge selectivity," IEEE Transactions on Antennas and Propagation, vol. 60, no. 10, pp. 4492-4499, Oct. 2012.   DOI   ScienceOn
2 J. Yeo, J.-I. Lee, and J.-T. Park, "Design of extremely wideband printed semi-circular-shaped dipole antenna," Journal of the Korea Institute of Information and Communication Engineering, vol. 17, no. 9, pp. 2003-2008, Sep. 2013.   과학기술학회마을   DOI
3 S.-G. Mao and S.-L. Chen, "Frequency- and time-domain characterizations of ultra-wideband tapered loop antennas," IEEE Transactions on Antennas and Propagation, vol. 55, no. 12, pp. 3698-3701, Dec. 2007.   DOI
4 N. Behdad and K. Sarabandi, "A compact antenna for ultrawide-band applications," IEEE Transactions on Antennas and Propagation, vol. 53, no. 7, pp. 2185-2192, Jul. 2005.   DOI
5 Y. Y. Sun, S. W. Cheung, and T. I. Yuk, "Studies of planar antennas with different radiator shapes for ultra-wideband body-centric wireless communications," PIERS Proceedings, Suzhou, China, pp. 1415-1419, Sep. 2011.
6 M. Ojaroudi, S. Yazdanifard, N. Ojaroudi, and M. Naser-Moghaddasi, "Small square monopole antenna with enhanced bandwidth by using inverted T-shaped slot and conductor-backed plane," IEEE Transactions on Antennas and Propagation, vol. 59, no. 2, pp. 670-674, Feb. 2011.   DOI   ScienceOn
7 W. L. Stutzman and G. A. Thiele, Antenna theory and design, 2nd ed., Wiley, 1998.
8 K.-L. Wong, Planar antennas for wireless communications, Wiley, 2003.
9 L. Liu, S. W. Cheung, R. Azim, and M. T. Lslam, "A compact circular ring antenna for ultra wideband applications," Microwave and Optical Technology Letters, Vol. 53, no. 10, pp. 2283-2288, Oct. 2011.   DOI   ScienceOn
10 M. K. Yang, G. P. Gao, S. F. Niu, and J. S. Zhang, "Study of a compact ring monopole UWB antenna with band notched characteristic," Microwave and Optical Technology Letters, Vol. 54, no. 10, pp. 2387-2392, Oct. 2012.   DOI   ScienceOn
11 H. Schantz, The art and science of ultrawideband antennas, Artech House. 2005.