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Design of Millimeter-Wave Wideband Gap Waveguide Transitions Considering Integration into the Antenna System

Astrid Algaba Brazález (Institutionen för signaler och system, Antennsystem) ; Eva Rajo-Iglesias ; Per-Simon Kildal (Institutionen för signaler och system, Antennsystem)
9th European Conference on Antennas and Propagation, EuCAP 2015, Lisbon, Portugal, 13-17 May 2015 (2015)
[Konferensbidrag, refereegranskat]

Two wideband vertical transitions from inverted microstrip gap waveguide to rectangular waveguide (WR-15) for 60 GHz antenna array applications are proposed. These transitions are aimed to interconnect the WR-15 with the gap waveguide feed-network employed to provide feeding to the radiating elements of slot/horn antenna arrays. The wideband field transformation is achieved without the need of adding a quarter-wavelength cavity backshort on a metal block placed over the transition. First, we replace this backshort by creating a cavity in the radiating layer when this is made in Substrate Integrated Waveguide (SIW) technology, and thereafter we use an air-filled pin cavity in the radiating layer. The simulated Sparameters show that the presented transitions cover the unlicensed 60 GHz band (57-64 GHz) with good margins.

Nyckelord: Gap waveguide; Perfect Magnetic Conductor (PMC); Artificial Magnetic Conductor (AMC); feed-network; Substrate Integrated Waveguide; transition; millimeter-wave circuits



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Denna post skapades 2015-12-09. Senast ändrad 2016-09-19.
CPL Pubid: 227745

 

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