Realisation of carved and iris groove gap waveguide filter and E-plane diplexer for V-band radio link application
Artikel i vetenskaplig tidskrift, 2017

The gap waveguide technology is a promising candidate as a cost-effective and low-loss platform for realizing microwave devices particularly at frequencies higher than 40GHz. In this study, two types of groove gap waveguide filters and also a diplexer are presented. Coupling mechanism of these filters is based on carving on the pin plate and iris between adjacent cavities. Two fifth-order Chebyshev filters are realised at 62.5GHz. The proposed diplexer consists of RX and TX iris groove gap waveguide filters at the centre frequency of 59.5 and 62.5GHz and an E-plane groove gap waveguide T-junction. The required transition of the groove gap waveguide to WR-15 is designed and used as an input port of the filters. Moreover, E-plane groove gap waveguide T-junction is designed as the connecting part of the groove gap waveguide filters to the WR-15 antenna port. Finally all parts are integrated. The proposed diplexer is manufactured in aluminium by sawing and milling and then silver plating is done. The RX and TX passbands of the diplexer is around 1.7 and 2.4% with the measured return loss better than 13.6dB and minimum insertion loss of 0.9 and 0.8dB, respectively.

iris groove gap waveguide filter

waveguide filters

E-plane groove gap waveguide T-junction

frequency 52 GHz to 63

fifth-order Chebyshev filters

return loss

millimetre wave antennas

wideband transition

V-band radio link application

insertion loss

5 GHz

Chebyshev filters

silver plating

WR-15 antenna port

RX passbands

pin plate

carved groove gap waveguide filter

TX passbands

E-plane diplexer

low-loss platform

radio links

cost-effective platform

millimetre wave filters

groove gap waveguide diplexer

microwave devices

coupling mechanism

waveguide antennas


M. Rezaee

Ashraf Uz Zaman

Chalmers, Signaler och system, Kommunikation, Antenner och Optiska Nätverk

IET Microwaves, Antennas and Propagation

1751-8725 (ISSN) 17518733 (eISSN)

Vol. 11 15 2109-2115


Elektroteknik och elektronik



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