Antenna-Filter-Antenna-Based Transmit-Array for Circular-Polarization Application
作者： Parinaz Naseri , Farhad Khosravi , Pedram Mousavi
DOI: 10.1109/LAWP.2016.2638469
关键词: Radiation pattern 、 Antenna rotator 、 Collinear antenna array 、 Physics 、 Optics 、 Periscope antenna 、 Dipole antenna 、 Antenna (radio) 、 Antenna measurement 、 Coaxial antenna
摘要: A novel antenna-filter-antenna-based asymmetric unit cell suitable for transmit-array (TA) is proposed in this letter. This converts a clockwise circular-polarized (CP) wave to counterclockwise CP with less than 0.5 dB insertion loss at 20.5 GHz, while its rotation provides up 360° continuous phase shift the transmitted wave. Hence, 14 × array of fabricated and placed front feed antenna. Placing TA leads 9.5-dBi increase gain feed, it redirects beam -15° off broadside. The axial ratio whole system close 2 dB. Therefore, can be used fixed and/or steerable high-gain radiations satellite communication Ka-band.
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