TY - JOUR ID - 327 TI - Theoretical Analysis of Polarization Rotation angle in Dual Reflector Antenna JO - Journal of Communication Engineering JA - JCE LA - en SN - 2322-4088 AU - Amiri, Shervin AU - Imani, Ali AU - Soleimani, Mohammad AD - Dept. of Electrical and Computer Eng. AD - School of electrical engineering Y1 - 2015 PY - 2015 VL - 4 IS - 1 SP - 21 EP - 28 KW - Antenna KW - beam KW - dual reflector KW - feed horn KW - polarization KW - trans KW - reflector KW - twist reflector DO - 10.22070/jce.2016.327 N2 - Because of special structure, a dual reflector antenna has beam rotation capability in azimuth and elevation directions. In this structure, the antenna beam can be placed in any point in the space by mechanical movement of twist reflector which it is the most important ability of the antenna. Due to the antenna structure, if the polarization of incident wave is linear, it is expected that the polarization of propagated wave is linear and in the direction of desired design. In this paper, for the first time, a nonlinear relation is extracted that it shows the propagated beam polarization has a polarization rotation. This formula is a mathematic closed form relation. These structures are very useful in airborne radar systems. UR - https://jce.shahed.ac.ir/article_327.html L1 - https://jce.shahed.ac.ir/article_327_026c2a9d03aaeb0eddbbaf535e78d809.pdf ER -