Performance Analysis of Wideband Circularly Polarized Pyramidal Horn Antenna with Binomial Polarizer Manufactured by 3D Printing Technology

This paper proposes development and performance analysis of wideband pyramidal horn antenna equipped with binomial polarizer to produce circularly polarized waves. The proposed antenna which is designed and optimized to operate at the X-band frequency is intended to be used for circularly polarized synthetic aperture radar (CP-SAR) application. The optimized antenna design is fabricated using 3D printing technology for fast, low cost and light weight which is very suitable for small platform of CP-SAR sensor. The performance of manufactured antenna has demonstrated the fractional impedance bandwidth of 26% for S 11 below –10dB, the axial-ratio bandwidth of 6.2% below 3dB, and the gain achievement up to 12dBic at the desired working frequency.