A 170 GHz 45 degree Hybrid for Submillimeter Wave Sideband Separating Subharmonic Mixers
Journal article, 2008

We present a 135/45 degree phase shifter hybrid intended to be used in subharmonic sideband separation mixer schemes at submillimeter-wave frequencies. The design consists of an increased height 90 degree 6-arm branch guide coupler with a three stub loaded differential line 45 degree phase shifter at the output. The device has been implemented at G-band in an E-plane WR-05 splitblock design with a center frequency of 170 GHz and 15% bandwidth. Measured S-parameter are in good agreement with simulations showing an isolation and return loss better than 20 dB and an amplitude and phase imbalance within 0.4 dB and 2 degree, respectively.

Millimeter wave directional couplers


power dividers

terahertz waveguide couplers.

wave phase shifters

rectangular waveguide filters


Peter Sobis


Jan Stake

Chalmers, Applied Physics, Physical Electronics

A. Emrich

Omnisys Instruments

IEEE Microwave and Wireless Components Letters

1531-1309 (ISSN)

Vol. 18 10 680-682 4639562

Areas of Advance

Information and Communication Technology

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering

Other Electrical Engineering, Electronic Engineering, Information Engineering



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