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
millimeter
power dividers
terahertz waveguide couplers.
wave phase shifters
rectangular waveguide filters
Author
Peter Sobis
Chalmers
Jan Stake
Chalmers, Applied Physics, Physical Electronics
A. Emrich
Omnisys Instruments
IEEE Microwave and Wireless Components Letters
1531-1309 (ISSN) 15581764 (eISSN)
Vol. 18 10 680-682 4639562Areas of Advance
Information and Communication Technology
Subject Categories
Electrical Engineering, Electronic Engineering, Information Engineering
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/LMWC.2008.2003463