A Waveguide Power Divider With Zebra Chip and Isolated Output Ports for 400–510 GHz

IEEE Transactions on Terahertz Science and Technology 2026

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Authors: M. Justen, Felix Münning, M. Schultz, Cornelia E. Honingh, Urs Ulrich Graf
DOI: 10.1109/tthz.2025.3648670
Cited by: 0
References: 7

Abstract

We present a broadband waveguide power divider for the 400–510 GHz band with low insertion loss and good isolation between the output ports. It is used in the LO distribution system of the CHAI LFA heterodyne receiver for the CCAT observatory to feed 32 balanced SIS mixers with each LO source. A silicon membrane chip with a zebra stripe pattern of resistive titanium nitride (TiN) is placed at the tip of the split block waveguide Y-junction to improve the isolation.

Fields of Study & Subjects

Superconducting and THz Device Technology Microwave Engineering and Waveguides Terahertz technology and applications

Publication details

Journal / source
IEEE Transactions on Terahertz Science and Technology
Volume
16
Issue
4
Pages
457–462
Publication date
12 January 2026