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A Comparative Analysis of a Single Feed Circularly Polarized Micro-strip Patch Antenna with U-Slot & L-Slot

Shailja Tripathi, Dr.P.K Singhal

Abstract


This paper compares the different parameters for a single feed circularly polarized Micro-strip patch antenna with U-slot and L-slot. The proposed antenna 1 contains a U-Slot and designed with DGS technique to reduce the size of antenna and proposed antenna 2 contains a L-slot and designed with DGS technique to reduce the size of antenna. The antenna with L-slot is designed on a high dielectric constant (εr = 10.2) substrate which achieves a reasonable bandwidth and axial ratio bandwidth with respect to a U slot antenna. At the operating frequency of 1.575 GHz with the size of the patch is 25mm X 25mm, while ground plane of 50mm X 50mm and the thickness of the substrate is 10.2 mm. Bandwidth is enhanced to 19.99% and Axial Ratio Bandwidth by 3.5% by using L-slot as compared to U-slot. The parameters of antenna like return loss, axial ratio, RHCP and LHCP, gain are analyzed using CST MSW Software.
Keywords-Circularly Polarized (CP), Defected Ground Structure (DGS), L-Slot, Patch Antenna, U-Slot.

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References


Bao X.L. and Ammann M.J Dual-frequency circularly-polarized patch antenna with compact size and small frequency ratio. IEEE Trans. Antennas Propag. July 2007; 55(7): 2104–07p.

Lam K.Y., Luk K.M., Lee K.F., et.al. Small Circularly Polarized U-Slot Wideband Patch Antenna. IEEE Antennas and Wireless Propagation Letters. 2011; 10: 87–90p.

Yang S.L.S., Lee K.F., Kishk A.A, et.al. Design and study of wideband single feed, circularly polarized micro strip antennas. Progress in Electromagnetics Research. PIER. 2008; 80: 45–61p.

Chen C.H. and Yung E.K.N. A Novel Unidirectional Dual-Band Circularly-Polarized Patch Antenna. IEEE Transactions on Antennas and Propagation. August 2011; 59(. 8): 3052–57p.

Aijaz Z. and Shrivastava S.C. Effect of the Different Shapes: Aperture Coupled Micro-strip Slot Antenna. International Journal of Electronics Engineering. 2010; 2(1): 103–5p.

Sandu D.D., Avadanei O., Ioachim A. et.al. Microstrip patch antenna with dielectric substrate. Journals of Optoelectronics and Advance Materials.2003; 5(5): 1381-87p.

Fukusako T. and Shafai L. Circularly polarized Broadband Antenna with L-shape Probe and Wide Slot. In Proc. ANTEM/URSI. July 2006; 445-8p.

Tong K.F. and Wong T.P. Circularly polarized U-Slot antenna. IEEE Trans. Antennas propag. Aug.2007; 55(8): 3382-85 p.

Pozar D.M. 1989; 3rd Edn.: Wiley Publication.

Balanis C. Antenna Theory. 2011; 3rd Edn: Wiley Publication.

CST (Computer Simulation Technology) microwave software studio 2010.




DOI: https://doi.org/10.37628/jbcc.v1i1.48

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