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Design of a simple transition from microstrip to ridge gap waveguide suited for MMIC and antenna integration

Ashraf Uz Zaman (Institutionen för signaler och system, Antenner) ; Tin Vukusic ; Mats Alexanderson ; Per-Simon Kildal (Institutionen för signaler och system, Antenner)
IEEE Antennas and Wireless Propagation Letters (1536-1225). Vol. 12 (2013), p. 1558 – 1561.
[Artikel, refereegranskad vetenskaplig]

This letter describes a simple and low-loss microstrip-to-ridge gap waveguide transition with a very compact geometry. The transition transforms the electromagnetic (EM) fields from the microstrip mode to the air-filled ridge gap waveguide mode. This is achievable if the height of the air gap in the ridge gap waveguide is kept almost equal to the thickness of the substrate of the microstrip line. The transition has a pressure contact between the ridge and the microstrip line, so it works without soldering. This is advantageous in systems that require mechanically separable split-blocks or modules and need a lot of transitions. Experimental results of the manufactured back-to-back transition show an insertion loss of 0.32 dB and a return loss of 14.15 dB over 55% relative bandwidth in Ka-band.

Nyckelord: Antenna array; microstrip transition; monolithic microwave integrated circuit (MMIC) integration; ridge gap waveguide



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Denna post skapades 2014-01-27. Senast ändrad 2014-10-14.
CPL Pubid: 193104

 

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Institutioner (Chalmers)

Institutionen för signaler och system, Antenner (2005-2014)

Ämnesområden

Informations- och kommunikationsteknik
Elektroteknik och elektronik

Chalmers infrastruktur