volume | PIER Journals

Abstract

A novel miniaturized single-feed cross-aperture coupled circularly polarized (CP) microstrip patch antenna loaded by four identical shorting strips is proposed and discussed. Each shorting strip underneath the edges of the radiating patch is connected to the ground plane via an array of three identical and equidistant shorting pins. With the assistance of the capacitance offered by the radiating patch and the shorting strips, and the inductance induced by the shorting pins, the patch size and overall size of the proposed antenna have been significantly reduced by 75% and 69%, respectively, compared with the conventional antenna. An antenna prototype with an overall size of 50 mm×50 mm×7.548 mm (0.317λ₀×0.317λ₀×0.048λ₀) and a patch size of 29.43 mm×27.85 mm (0.186λ₀×0.176λ₀) has been fabricated and measured, which shows a measured 10-dB return loss bandwidth of 92 MHz (4.76%) from 1.886 to 1.978 GHz with a maximum right-handed CP (RHCP) gain of 4.9 dBic. The measured 3-dB axial ratio (AR) bandwidth is 28 MHz (1.46%) from 1.899 to 1.927 GHz with a 3-dB AR beamwidth of more than 140º across the operating bandwidth.

1. Targonski, S. D. and D. M. Pozar, "Design of wideband circularly polarized aperture-coupled microstrip antenna," IEEE Trans. Antennas Propag., Vol. 41, No. 2, 214-219, 1993.
doi:10.1109/8.214613 Google Scholar

2. Pozar, D. M. and S. M. Duffly, "A dual-band circularly polarized aperture coupled stacked microstrip antenna for global positioning satellite," IEEE Trans. Antennas Propag., Vol. 45, No. 11, 1618-1625, 1997.
doi:10.1109/8.650073 Google Scholar

3. Zhou, Y. J., C. C. Chen, and J. L. Volakis, "Dual band proximity-fed stacked patch antenna for tri-band GPS applications," IEEE Trans. Antennas Propag., Vol. 55, No. 1, 220-223, 2007.
doi:10.1109/TAP.2006.888476 Google Scholar

4. Chen, M. and C. C. Chen, "A compact dual-band GPS antenna design," IEEE Antennas Wireless Propag. Lett., Vol. 12, 245-248, 2013.
doi:10.1109/LAWP.2013.2247972 Google Scholar

5. Li, J. X., H. Y. Shi, H. Li, and A. X. Zhang, "Quad-band probe-fed stacked annular patch antenna for GNSS applications," IEEE Antennas Wireless Propag. Lett., Vol. 13, 372-375, 2014. Google Scholar

6. Vlasits, T., E. Korolkiewicz, A. Sambell, and B. Robinson, "Performance of a cross-aperture coupled single feed circularly polarised patch antenna," Electron. Lett., Vol. 32, No. 7, 612-613, 1996.
doi:10.1049/el:19960459 Google Scholar

7. Yang, K. P. and K. L. Wong, "Dual-band circularly-polarized square microstrip antenna," IEEE Trans. Antennas Propag., Vol. 49, No. 3, 377-382, 2001.
doi:10.1109/8.918611 Google Scholar

8. Falade, O. P., M. U. Rehman, Y. Gao, X. D. Chen, and C. G. Parini, "Single feed stacked patch circular polarization antenna for triple band GPS receivers," IEEE Trans. Antennas Propag., Vol. 60, No. 10, 4479-4484, 2012.
doi:10.1109/TAP.2012.2207354 Google Scholar

9. Nasimuddin, X., M. Qing, and Z. N. Chen, "Compact asymmetric-slit microstrip antennas for circular polarization," IEEE Trans. Antennas Propag., Vol. 59, No. 1, 285-288, 2011.
doi:10.1109/TAP.2010.2090468 Google Scholar

10. Nasimuddin, Z., N. Chen, and X. M. Qing, "A compact circularly polarized cross-shaped slotted microstrip antenna," IEEE Trans. Antennas Propag., Vol. 60, No. 3, 1584-1588, 2012.
doi:10.1109/TAP.2011.2180334 Google Scholar

11. Chung, H., Y. Lee, and J. Choi, "Miniaturization of an UHF RFID reader antenna using an artificial magneto-dielectric," Microw. Opt. Technol. Lett., Vol. 52, No. 9, 1926-1930, 2010.
doi:10.1002/mop.25423 Google Scholar

12. Dong, Y., H. Toyao, and T. Itoh, "Design and characterization of miniaturized patch antennas loaded with complementary split-ring resonators," IEEE Trans. Antennas Propag., Vol. 60, No. 2, 772-785, 2012.
doi:10.1109/TAP.2011.2173120 Google Scholar

13. Xu, H. X., G. M.Wang, J. G. Liang, M. Q. Qi, and X. Gao, "Compact circularly polarized antennas combining meta-surfaces and strong space-filling meta-resonators," IEEE Trans. Antennas Propag., Vol. 61, No. 7, 3442-3450, 2013.
doi:10.1109/TAP.2013.2255855 Google Scholar

14. Nasimuddin, X., M. Qing, and Z. N. Chen, "A compact circularly polarized slotted patch antenna for GNSS applications," IEEE Trans. Antennas Propag., Vol. 62, No. 12, 6506-6509, 2014.
doi:10.1109/TAP.2014.2360218 Google Scholar

15. Yang, M., Z. N. Chen, P. Y. Lau, X. M. Qing, and X. X. Yin, "Miniaturized patch antenna with grounded strips," IEEE Trans. Antennas Propag., Vol. 63, No. 2, 843-848, 2015.
doi:10.1109/TAP.2014.2382668 Google Scholar

16., Ansoft High Frequency Structural Simulator (HFSS) version 12.0. Framingham, MA, USA, Ansoft Corp., 2006.

17. Sievenpiper, D. F., D. C. Dawson, M. M. Jacob, T. Kanar, S. Kim, J. Long, and R. G. Quarfoth, "Experimental validation of performance limits and design guidelines for small antennas," IEEE Trans. Antennas Propag., Vol. 60, No. 1, 8-19, Jan. 2012.
doi:10.1109/TAP.2011.2167938 Google Scholar

18. Johnson, H. W. and M. Graham, High Speed Digital Design. Englewood Cliffs, 258-260, Prentice Hall PTR, NJ, USA, 1993.

Professor Jianxing Li

Dr. Jianying Guo

Dr. Anxue Zhang

Professor William Joines

Dr. Qing Huo Liu