Ka-Band Gap Waveguide Coupled-Resonator Filter for Radio Link Diplexer Application
Journal article, 2013

Gap waveguide technology represents an interesting alternative as low-loss, cost-effective, and high-performance transmission line and package of microwave and millimeter-wave systems. A Ka-band coupled-resonator filter for a radio link diplexer, which requires high selectivity to isolate transmit and receiving channels, is proposed and realized using gap waveguide technology. The band-pass filter, which has a central frequency of 37.37 GHz and a pass bandwidth of 560 MHz, is fabricated between two parallel metal plates, leaving an air gap between them. After milling one of the plates, silver-plating is applied on them. Measurements show a minimum in-band insertion loss of 1 dB and agree quite well with simulations.

millimeter-wave circuits

microwave filters

Band pass filters

resonator filters

gap waveguides

Author

Esperanza Alfonso Alos

Chalmers, Signals and Systems, Communication and Antenna Systems, Antennas

Ashraf Uz Zaman

Chalmers, Signals and Systems, Communication and Antenna Systems, Antennas

Per-Simon Kildal

Chalmers, Signals and Systems, Communication and Antenna Systems, Antennas

IEEE Transactions on Components, Packaging and Manufacturing Technology

2156-3950 (ISSN)

Vol. 3 5 870-879

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/tcpmt.2012.2231140

More information

Latest update

2/12/2018