Design and Study of Wideband Single Feed Circularly Polarized Microstrip Antennas

The performance of single feed truncated corner circularly polarized microstrip antennas with different substrate thickness is studied by simulation and experiment. It is found that the axial ratio bandwidth could be enhanced considerably when a thicker substrate is used, provided that a U-slot and/or L-probe is used to effect impedance matching. One of the configurations attains an axial ratio bandwidth (< 3 dB) of about 14% within the impedance matching band when the substrate thickness is about 0.2λo.

[1]  Gregory H. Huff,et al.  Analysis and design of broad-band single-layer rectangular U-slot microstrip patch antennas , 2003 .

[2]  Y. Lo,et al.  Circularly polarized microstrip antennas , 1985 .

[3]  C. Y. D. Sim,et al.  Probe-feed Circularly Polarized Square-ring Microstrip Antennas With Thick Substrate , 2007 .

[4]  Y. Chow,et al.  Experimental study of a microstrip patch antenna with an L-shaped probe , 2000 .

[5]  Y. Chow,et al.  Broadband microstrip patch antenna , 1998 .

[6]  U. R. Kraft,et al.  An experimental study on 2/spl times/2 sequential-rotation arrays with circularly polarized microstrip radiators , 1997 .

[7]  David R. Jackson,et al.  Impedance, axial-ratio, and receive-power bandwidths of microstrip antennas , 2004 .

[8]  Kwai-Man Luk,et al.  A wide-band small size microstrip antenna proximately coupled to a hook shape probe , 2004, IEEE Transactions on Antennas and Propagation.

[9]  W.-C. Liu,et al.  Design of a Probe-Fed H-Shaped Microstrip Antenna for Circular Polarization , 2007 .

[10]  Lotfollah Shafai,et al.  Resonance behavior of single U‐slot microstrip patch antenna , 2002 .

[11]  Kwai-Man Luk,et al.  Broadband patch antenna with a T-shaped probe , 2000 .

[12]  Kai-Fong Lee,et al.  Single-layer single-patch wideband microstrip antenna , 1995 .

[13]  M. Haneishi,et al.  Circular polarisation and bandwidth , 1989 .

[14]  K. Gupta,et al.  Analysis and optimized design of single feed circularly polarized microstrip antennas , 1983 .

[15]  J. Huang,et al.  A technique for an array to generate circular polarization with linearly polarized elements , 1986 .

[16]  K. Luk,et al.  Experimental and simulation studies of the coaxially fed U-slot rectangular patch antenna , 1997 .

[17]  K. Tong,et al.  Circularly Polarized U-Slot Antenna , 2007, IEEE Transactions on Antennas and Propagation.

[18]  U. Kraft,et al.  An Experimental Study on 2 2 Sequential-Rotation Arrays with Circularly Polarized Microstrip Radiators , 1998 .

[19]  L. Shafai,et al.  Multiple resonances and polarisation of U-slot patch antenna , 1999 .

[20]  Kwai-Man Luk,et al.  Study on Sequential Feeding Networks for Subarrays of Circularly Polarized Elliptical Dielectric Resonator Antenna , 2007, IEEE Transactions on Antennas and Propagation.