Micromachined Wideband Ridge Gap Waveguide Power Divider at 220-325 GHz
Journal article, 2022

A micromachined ridge gap waveguide power divider operating at 220-325 GHz is presented. The device is fabricated by SUEX dry film photoresist. Dry film photoresist can be used to obtain geometrical features with high accuracy using a robust fabrication process. The designed power divider has simple geometrical features and a wide band performance. The measured transmission coefficients are equal to -3.5 ± 0.4 dB at 220-325 GHz and the measured input reflection coefficient is below -12 dB at 220-325 GHz. The measurement results are in good agreement with simulations, demonstrating that the proposed fabrication method is suitable for the fabrication of waveguide components operating at the millimeter and sub-millimeter wave range. The presented low-loss ridge gap waveguide power divider may enable cost-effective and rapid fabrication of passive devices such as high gain antennas operating up to THz frequencies.

sub-millimeter wave

power divider

gap waveguide

Dry film photoresist

millimeter wave



Sadia Farjana

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems

Ashraf Uz Zaman

Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks

Per Lundgran

Chalmers, Microtechnology and Nanoscience (MC2)

Peter Enoksson

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems

Enoaviatech AB

IEEE Access

2169-3536 (ISSN)

Vol. In Press

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering



More information

Latest update