PIER Letters
Progress In Electromagnetics Research Letters
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By J.-Q. Huang, F. Qiu, C. Jiang, D. Lei, Z. Tang, M. Yao, and Q.-X. Chu

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A circularly polarized (CP) substrate integrated waveguide (SIW) cavity-backed slot antenna is proposed. A slot split ring (SSR) etched on the top metal surface of an SIW resonator is employed to generate the right-handed circularly polarized (RHCP) wave. The proposed antenna is excited directly by a coaxial probe with a proper distance from the symmetric axis of the SSR resonator. A prototype of the proposed CP antenna at the center frequency of 10 GHz is manufactured. As a result, the proposed antenna exhibits the advantages of both conventional planar antennas and metallic cavity backed antennas, including simple structure, compact size of 15.8×15.8 mm2, light weight, easy fabrication, high gain and wide axial ratio bandwidth. It is proved by experiment that an impedance bandwidth of 10.2% for the reflection coefficient less than -10 dB, an axial ratio (AR) bandwidth of 1.72% for AR less than 3 dB, and a RHCP gain 5.5 dBi have been obtained.

J.-Q. Huang, F. Qiu, C. Jiang, D. Lei, Z. Tang, M. Yao, and Q.-X. Chu, "Compact Coaxial Probe-Fed CP Substrate Integrated Waveguide Cavity-Backed Antenna Utilizing Slot Split Ring," Progress In Electromagnetics Research Letters, Vol. 60, 107-112, 2016.

1. Wong, K. L. and Y. F. Lin, "Circularly polarized microstrip antenna with a tuning stub," Electron. Lett., Vol. 34, No. 9, 831-832, Apr. 1998.

2. Chen, W. S., C. K.Wu, and K. L.Wong, "Single-feed square-ring microstrip antenna with truncated corners for compact circular polarization operation ," Electron. Lett., Vol. 34, No. 11, 1045-1047, May 1998.

3. Lam, K. Y., K. M. Luk, K. F. Lee, H. Wong, and K. B. Ng, "Small circularly polarized U-slot wideband patch antenna," IEEE Antennas Wireless Propag. Lett., Vol. 10, 87-90, 2011.

4. Row, J. S., "The design of a squarer-ring slot antenna for circular polarization," IEEE Trans. Antennas Propag., Vol. 53, No. 6, 1967-1972, Jun. 2005.

5. Buffi, A., R. Caso, M. R. Pino, P. Nepa, and G. Manara, "Single-feed circularly polarized aperture-coupled square ring slot microstrip antenna," Electron. Lett., Vol. 46, No. 4, 268-269, Feb. 2010.

6. Chung, K. L., "A wideband circularly polarized H-shaped patch antenna," IEEE Trans. Antennas Propag., Vol. 58, No. 10, 3379-3383, Oct. 2010.

7. Rao, P. H., V. F. Fusco, and R. Cahill, "Wide-band linear and circularly polarized patch antenna using a printed stepped T-feed," IEEE Trans. Antennas Propag., Vol. 50, No. 3, 356-361, Mar. 2002.

8. Lacik, J., "Circularly polarised SIW square ring-slot antenna for X-band applications," Microwave Opt Technol Lett., Vol. 54, No. 11, 2590-2594, Nov. 2012.

9. Kim, D., J. W. Lee, C. S. Cho, and T. K. Lee, "X-band circular ring slot antenna embedded in single-layered SIW for circular polarisation," Electron Lett., Vol. 45, No. 13, 668-669, Jun. 2009.

10. Hao, Z. C., et al., "Planar high-gain circularly polarized element antenna for array applications," IEEE Transactions on Antennas & Propagation, Vol. 63, No. 5, 1937-1948, May 2015.

11. Elboushi, A., O. Haraz, and A. Sebak, "High gain circulary polarized slot-coupled antenna for millmeter wave applications," Microwave Opt Technol Lett., Vol. 56, No. 11, 2522-2526, Aug. 2014.

12. Pablo, S. O. and L. M. C. Jose, "Novel four cross slot radiator with tuning vias for circularly polarized SIW linear array ," IEEE Trans. Antennas Propag., Vol. 62, No. 4, 2271-2275, Apr. 2014.

13. Luo, G. Q., Z. F. Hu, Y. Liang, L. Y. Yu, and L. L. Sun, "Development of low profile cavity backed crossed slot antennas for planar integration," IEEE Trans. Antennas Propag., Vol. 57, No. 10, 2972-2979, Oct. 2009.

14. Gao, F., F. Zhang, L. Lu, and Y. C. Jiao, "Wideband Circularly polarised SIW antenna," Microwave Opt. Technol. Lett., Vol. 56, No. 11, 2539-2542, Aug. 2014.

15. Chen, W. S., C. C. Huang, and K. L. Wong, "Microstrip-line-fed printed shorted ring-slot antennas for circular polarization," Microwave Opt. Technol. Lett., Vol. 31, No. 2, 137-140, Aug. 2001.

16. Rao, J. S. and B. N. Das, "Impedance characteristics of transverse slots in the ground plane of a stripline," Proc. IEE, Vol. 125, No. 1, 29-32, Jan. 1978.

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