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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2018-03-27
Realization of Ku-Band Ortho Mode Transducer with High Port to Port Isolation
By
Pramendra Kumar Verma,

    Dr. Pramendra Kumar Verma

    DRDO

    DEAL

    India

    Homepage

Raj Kumar

    Dr. Raj Kumar

    Defence Electronics Applications Laboratory

    India

    Homepage

Progress In Electromagnetics Research Letters, Vol. 74, 111-115, 2018
doi:10.2528/PIERL18012201 | Google Scholar

Abstract
Present paper describes the design, development and evaluation of a wideband, compact Ku-band orthomode transducer (OMT) for SATCOM application. It consists of a square waveguide output section, square waveguide to rectangular waveguide transition, straight waveguide port and an orthogonally coupled port. A tapered waveguide section has been used to couple the orthogonal RF (Radio Frequency) signal to the common port. The designed OMT has a transmit port with frequency band 13.75 GHz-14.5 GHz and a receive port with frequency band 10.95-12.5 GHz. Finite element method based ANSYS's High Frequency Structure Simulator (HFSS) EM software has been used for simulation and optimization of OMT. Measured reflection coefficients of OMT over transmission and reception frequency bands are better than -15 dB and -12 dB, respectively. Designed OMT has port to port isolation better than 45 dB against 30 dB isolation of conventional OMT available in market.
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Citation
Pramendra Kumar Verma, and Raj Kumar, "Realization of Ku-Band Ortho Mode Transducer with High Port to Port Isolation," Progress In Electromagnetics Research Letters, Vol. 74, 111-115, 2018.
doi:10.2528/PIERL18012201
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