Development of patch stack antenna for CP-SAR sensor

In this paper, we obtain the basic configuration of left-hand circular polarization (LHCP) array two patches stack triangular truncated microstrip antenna. This construction use corporate feed microstrip-line with modified lossless T-junction power divider on radiating patch for circularly polarized-synthetic aperture radar (CP-SAR) sensor embedded airspace compact, small, and simple configuration. The design Circular Polarization (CP) is realized by truncating whole three tips adjusting parameters antenna at resonant frequency, f=5.2 GHz. results characteristic performance S-parameter LHCP frequency show successively about 7.24 dBic gain, 1.99 dB axial ratio (Ar), -11.43 S-parameter. Moreover, impedance bandwidth 3 dB-Ar are around 560 MHz (10.77%) 50 (0.96%), respectively.