Minimizing RF performance spikes in a cryogenic orthomode transducer (OMT)

D Henke, S Claude - IEEE Transactions on Microwave Theory …, 2014 - ieeexplore.ieee.org
The turnstile junction exhibits very low cross-polarization leakage and is suitable for low-
noise millimeter-wave receivers. For use in a cryogenic receiver, it is best if the orthomode …

Compact full band OMT based on dual-mode double-ridge waveguide

MA Abdelaal, SI Shams, MA Moharram… - IEEE Transactions …, 2018 - ieeexplore.ieee.org
A nonstandard dual mode, double-ridge waveguide is utilized to design a compact
orthomode transducer (OMT). The OMT is terminated with a standard circular waveguide …

Asymmetric compact OMT for X-band SAR applications

MA Abdelaal, SI Shams… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
A compact asymmetric orthomode transducer (OMT) with high isolation between the vertical
and horizontal Ports is developed for the X-band synthetic aperture radar application. The …

A compact 3-D printed asymmetric orthogonal mode transducer

A Liu, J Lu, SM Sow - IEEE Transactions on Antennas and …, 2020 - ieeexplore.ieee.org
In this article, a compact 3-D-printed orthogonal-mode transducer (OMT) is proposed. Unlike
conventional OMT that uses long extended transition for port matching, the proposed design …

Design of a 70–116 GHz W-band turnstile OMT

D Henke, S Claude - 2014 44th European Microwave …, 2014 - ieeexplore.ieee.org
An orthomode transducer (OMT) is important to separate the incoming signal into two linear
polarizations. Using a turnstile junction, good input match, high isolation, and low cross …

Compact Dual Linear Polarized Antenna Feed for LEO Satellites Based on Quad Ridge Waveguide

M Gadelrab, SI Shams, A Sebak - … Conference (ITC-Egypt), 2023 - ieeexplore.ieee.org
Low Earth Orbit (LEO) satellites are regaining interest in the wireless communications
community as they will be heavily used in future wireless communication networks. LEO …

AQ‐band compact high‐performance double‐ridged orthomode transducer

W Zhong, X Yin, S Shi - … of RF and Microwave Computer‐Aided …, 2019 - Wiley Online Library
In this article, a Q‐band compact waveguide orthomode transducer (OMT) based on a
stepped double‐ridged waveguide is presented. By using a symmetrical structure, good …

Broadband Orthomode Transducer Based on the Boifot Junction

J Wang - 2024 IEEE 7th International Conference on Electronic …, 2024 - ieeexplore.ieee.org
This letter proposes a high-performance wideband double-ridged waveguide orthomode
transducer (OMT) designed for the V-band, covering the 40-60 GHz frequency band. The …

Design, simulation and comparison of two ultra-wideband dual-pol compact heterodyne front end pixels

CJ Saldaña Espinoza - 2021 - repositorio.uchile.cl
Los arreglos de plano focal heterodinos han adquirido importancia para observaciones
astronómicas dada su alta sensibilidad, resolución espectral y gran campo de visión. No …

A Broadband Q-band Dual-Circular Polarizer for Millimeter-Wave VLBI Observations

MH Chung - 2019 44th International Conference on Infrared …, 2019 - ieeexplore.ieee.org
A 33~ 50 GHz dual-circular polarizer combining of an OMT (Orthomode Transducer) and a
90-deg differential phase shifter has been developed for Korean VLBI Network. The OMT is …