AUTHOR=Cooper Joshua , Vijayamohanan Jayakrishnan , Ardelean Emil , Lane Steven A. , Christodoulou Christos 

TITLE=E-band reconfigurable polarizer for waveguide fed antennas

JOURNAL=Frontiers in Antennas and Propagation

VOLUME=Volume 3 - 2025

YEAR=2025

URL=https://www.frontiersin.org/journals/antennas-and-propagation/articles/10.3389/fanpr.2025.1615932

DOI=10.3389/fanpr.2025.1615932

ISSN=2813-4680

ABSTRACT=A new design for a reconfigurable polarizer integrated E band horn antenna is proposed in this paper. The reconfigurable polarizer consists of two septum based waveguides which can be arranged in different configurations. Depending on the orientation of the waveguides relative to each other the desired polarization can be achieved among Linear, Right-handed circular and Left-handed circular polarization. The polarizer is integrated with a horn antenna and optimized to work from 60 to 90 GHz. This antenna is fabricated, and measured for different frequencies. The proposed design has a line of sight Axial Ratio (AR) around 1 dB and a 3 dB AR beamwidth of 56O at the center frequency.