volume | PIER Journals

Abstract

A new design for circularly polarized square slot antenna (CPSSA) is presented. The circular polarization operation in the proposed single-layer antenna is created through two equal sized crooked T-shape and an F-shape strips located on the patch. Compared to most of the previously reported CPSSA structures, the impedance bandwidth and the axial ratio bandwidth of the antenna are increased and also the size of the antenna becomes smaller. The presented CPSSA design has the compact dimensions of 40 x 40 x 0.8 mm³, total impedance matching bandwidth of 8.04 GHz and exhibiting a 28.03% (4.6-6.1 GHz) 3 dB axial ratio bandwidth. A prototype of the antenna is fabricated and tested, and a great agreement with simulated results is obtained.

1. Liao, W.-J., S.-H. Chang, Y.-C. Chu, and W.-S. Jhong, "A beam scanning phased array for UHF RFID readers with circularly polarized patches," Journal of Electromagnetic Waves and Applications, Vol. 24, No. 17-18, 2383-2395, 2010. Google Scholar

2. Hong, T., L.-T. Jiang, Y.-X. Xu, S.-X. Gong, and W. Jiang, "Radiation and scattering analysis of a novel circularly polarized slot antenna," Journal of Electromagnetic Waves and Applications, Vol. 24, No. 13, 1709-1720, 2010. Google Scholar

3. Ooi, T. S., S. K. A. Rahim, and B. P. Koh, "2.45 GHz and 5.8 GHz compact dual-band circularly polarized patch antenna," Journal of Electromagnetic Waves and Applications, Vol. 24, No. 11-12, 1473-1782, 2010. Google Scholar

4. Lin, C., F.-S. Zhang, Y. Zhu, and F. Zhang, "A novel three-FED microstrip antenna for circular polarization application," Journal of Electromagnetic Waves and Applications, Vol. 24, No. 11-12, 1511-1520, 2010. Google Scholar

5. Du, S., Q.-X. Chu, and W. Liao, "Dual-band circularly polarized stacked square microstrip antenna with small frequency ratio," Journal of Electromagnetic Waves and Applications, Vol. 24, No. 11-12, 1599-1608, 2010. Google Scholar

6. Chiu, C.-N. and C.-C. Yang, "A new board-integrated single microstripfed circularly polarized monopole antenna for global positioning satellite receivers," Journal of Electromagnetic Waves and Applications, Vol. 24, No. 7, 903-909, 2010. Google Scholar

7. Li, X., Y.-J. Yang, X. Tao, L. Yang, S.-X. Gong, Y. Gao, K. Ma, and X.-L. Liu, "A novel design of wideband circular polarization antenna array with high gain characteristic," Journal of Electromagnetic Waves and Applications, Vol. 24, No. 7, 951-958, 2010. Google Scholar

8. Deng, S.-M., C.-L. Tsai, M.-F. Chang, and S.-S. Bor, "A study on the non-uniform rectangularring slot antenna for broadband circular polarization operations," Journal of Electromagnetic Waves and Applications, Vol. 24, No. 4, 543-555, 2010. Google Scholar

9. Lai, C.-H., T.-Y. Han, and T.-R. Chen, "Circularly-polarized reconfigurable microstrip antenna," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 2-3, 195-201, 2009. Google Scholar

10. Tsai, C.-L., S.-M. Deng, C.-K. Yeh, and S.-S. Bor, "A novel shorted rectangular-loop antenna for circularly polarized wave operations," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 10, 1323-1334, 2009. Google Scholar

11. Bai, X., X. M. Zhang, L. Li, Q. Yang, and J. Y. Li, "Double-sided printed four rhombic-loop antenna with parasitic loops for circular polarization," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 13, 1795-1802, 2009. Google Scholar

12. Chen, J., G. Fu, G.-D. Wu, and S.-X. Gong, "Broadband circularly polarized combinatorial slot antenna," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 16, 2127-2134, 2009. Google Scholar

13. Wang, A.-N. and W.-X. Zhang, "Design and optimization of broadband circularly polarized wide-slot antenna," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 16, 2229-2236, 2009. Google Scholar

14. Pourahmadazar, J., C. Ghobadi, J. Nourinia, N. Felegari, and H. Shirzad, "Broadband CPW-fed circularly polarized square slot antenna with inverted-L strips for UWB applications," IEEE Antennas and Wireless Propagation Letters, Vol. 10, 2011. Google Scholar

15. Chen, C. 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, No. 6, Jun. 2009. Google Scholar

16. Chang, K.-M., R.-J. Lin, I.-C. Deng, and Q.-X. Ke, "A novel design of a microstrip fed shorted square-ring slot antenna for circular polarization," Microwave and Optical Technology Letters, Vol. 49, No. 7, Jun. 2007. Google Scholar

17. Sze, J., C. I. G. Hsu, Z. W. Chen, and C. C. Chang, "Broadband CPW-fed circularly polarized square slot antenna with lightening-shaped feedline and inverted-L grounded strips," IEEE Transactions on Antennas and Propagation, Vol. 58, No. 3, Mar. 2010. Google Scholar

18. Sze, J., C. I. G. Hsu, M. Ho, Y. Ou, and M. Wu, "Design of circularly polarized annular-ring slot antennas fed by a double-bent microstripline ," IEEE Transactions on Antennas and Propagation, Vol. 55, No. 11, Nov. 2007. Google Scholar

19. Wang, C.-J. and Y.-C. Lin, "New CPW-fed monopole antennas with both linear and circular polarizations," IET Microw. Antennas Propag., Vol. 2, No. 5, 466-472, 2008. Google Scholar

20. Sze, J. and W. H. Chen, Axial-ratio-bandwidth Enhancement f a Microstrip-line-fed Circularly Polarized Annular-ring Slot Antenna, IEEE Early Access, 2011.

21. Sze, J.-Y., J.-C. Wang, and C.-C. Chang, "Axial-ratio bandwidth enhancement of asymmetric-CPW-fed circularly-polarised square slot antenna," Electronics Letters, Vol. 44, No. 18, Aug. 28, 2008. Google Scholar

22. Fu, S., S. Fang, Z. Wang, and X. Li, "Broadband circularly polarized slot antenna array fed by asymmetric CPW for L-band applications," IEEE Antennas and Wireless Propagation Letters, Vol. 8, 2009. Google Scholar

23. Wang, C.-J. and C.-H. Chen, "CPW-fed stair-shaped slot antennas with circular polarization," IEEE Transactions on Antennas and Propagation, Vol. 57, No. 8, Aug. 2009. Google Scholar

24. Chen, C. H., E. K. N. Yung, and B. J. Hu, "Miniaturised CPW-fed circularly polarized corrugated slot antenna with meander line loaded," Electronics Letters, Vol. 43, No. 25, Dec. 6, 2007. Google Scholar

25. Wong, K.-L., C.-C. Huang, and W.-S. Chen, "Printed ring slot antenna for circular polarization," IEEE Transactions on Antennas and Propagation, Vol. 50, No. 1, Jan. 2002. Google Scholar

26. Chen, H. and H. T. Chen, "A CPW-fed dual-frequency monopole antenna," IEEE Transactions on Antennas and Propagation, Vol. 52, No. 4. Google Scholar

27. Sze, J. and K. Wong, "Bandwidth enhancement of a microstrip-line-fed printed wide-slot antenna," IEEE Transactions on Antennas and Propagation, Vol. 49, No. 7, Jul. 2001. Google Scholar

28. Chang, S. F. R., W. L. Chen, S. C. Chang, C. K. Tu, C. L. Wei, C. H. Chien, C. H. Tsai, J. Chen, and A. Chen, "A dual-band RF transceiver for multistandard WLAN applications," IEEE Trans. Microw. Theory Tech., Vol. 53, 1048-1055, Mar. 2005. Google Scholar

29. Sze, J., C. I. G. Hsu, and S. C. Hsu, "Design of a compact dual-band annular-ring slot antenna," IEEE Antennas and Wireless Propagation Letters, Vol. 6, 2007. Google Scholar

30. Jou, C. F., J.-W. Wu, and C.-J. Wang, "Novel broadband monopole antennas with dual-band circular polarization," IEEE Transactions on Antennas and Propagation, Vol. 57, No. 4, Apr. 2009. Google Scholar

Mr. Sasan Ahdi

Prof. Mesut Kartal