[3[3] X. Bao and M. J. Ammann, “Dual-frequency dual-sense circularly polarized slot antenna fed by microstrip line,” IEEE Transaction on Antennas and Propagation, vol. 56, pp. 645–649, 2008.] |
Ring Slot |
80×80 |
Microstrip Line Feeding |
26.7%,11.3% |
6.1%, 6.0% |
RHCP,LHCP |
[4[4] C. Chen and E. K. N. Yung, “Dual-band dual-sense circularly-polarized CPW-fed slot antenna with two spiral slots loaded,” IEEE Transactions on Antennas and Propagation, vol. 57, pp. 1829-1833, 2009.] |
Ring Slot |
70×70 |
CPW Feeding |
8.7%, 23% |
8.4%,19.24% |
LHCP,RHCP |
[5[5] V. V. Reddy and N. V. S. N. Sarma, “Triband circularly polarized Koch fractal boundary microstrip antenna,” IEEE Antennas and Wireless Propagation Letters, vol. 13, pp. 1057–1060, 2014.] |
Fractal Slot |
50×50 |
Coaxial Probe Feeding |
8.7%,2.4%, 5% |
3.2%, 1.6%, 3.0% |
RHCP |
[6[6] D. Yu, S. X. Gong, Y. T. Wan, and W. F. Chen, “Omnidirectional dual-band dual circularly polarized microstrip antenna using TM01and TM02 modes,” IEEE Antennas and Wireless Propagation Letters, vol. 13, pp. 1104–1107, 2014.] |
Curved Slot |
60×60 |
Coaxial Probe Feeding |
0.48%, 0.73% |
10.7%, 9.6% |
LHCP,RHCP |
[7[7] C. J. Wang, M. H. Shih, and L. T. Chen, “A Wideband open-slot antenna with dual-band circular polarization,” IEEE Antennas Wireless Propag. Lett., vol. 14, pp. 1306 – 1309, 2015.] |
Open Slot |
50×60 |
Bent Feeding |
92.2% |
4.15%,4.55% |
RHCP,LHCP |
[8[8] W. Liang, Y. C. Jiao, Y. Luan and C. Tian, “A dual-band circularly polarized complementary antenna,” IEEE Antennas and Propagation Society, vol. 14, pp. 1153–1156, 2015.] |
Complementary |
42×30 |
Microstrip Line Feeding |
0.16%,34.4% |
1.6%,11.89% |
RHCP,LHCP |
[9[9] D. K. Singh, B. K. Kanaujia, S. Dwari, G. P. Pandey and S. Kumar, “Novel quad-band circularly polarized capacitive-fed microstrip antenna for C-band applications,” Microwave and Optical Technology Letters, vol. 57, pp. 2622-2628, 2015.] |
Stacked patch |
≈25×25 |
Coplanar capacitive-feeding |
55.46%, |
0.98%,4.275%,0.8869%,1.35% |
LHCP |
[10[10] X. L. Bao and M. J. Ammann, “Monofilar spiral slot antenna for dual-frequency dual-sense circular polarization,” IEEE Transactions on Antennas and Propagation, vol. 59, pp. 3061 – 3065, 2011] |
Spiral Slot |
100×100 |
Microstrip Line Feeding |
18.2%,18.4% |
4.5%,3.5% |
RHCP,LHCP |
[11[11] J. G. Baek and K. C. Hwang, “Triple-band unidirectional circularly polarized hexagonal slot antenna with multiple L-shaped slits,” IEEE Transaction on Antennas and Propagation, vol. 61, pp. 4831–4835, 2013.] |
Hexagonal Slot |
60×60 |
Tapered Microstrip feeding |
33.16%,22.72% |
1.7%,3.86%,5.23% |
RHCP |
Proposed
|
Circular Slot
|
18×18
|
CPW Feeding
|
112%
|
39.3%, 2.8%
|
RHCP,LHCP
|