Toward Wide-Band Low-Loss Gap-Waveguide-Integrated Grid Amplifiers
Paper in proceeding, 2017

A passive W-band 19-channel spatial power splitter/combiner is presented, for the applications in grid amplifiers design. The design employs a linear array of chip-to-air-filled waveguide contactless connections, and are directly integrated within a single-layer. The meta-material-based gap waveguide is used; it enables a low-loss low-profile solution. The quasi optical beamformer gives rise to a parallel-plate planar waveguide field which excites an array of contactless chip-to-waveguide transitions via step-tapered ridge gap waveguides. The other beamformer restores the field distribution (after amplification) and excites a wave going towards the waveguide output. Furthermore, the gap waveguide technology isolates the amplifiers from one another and provides a packaging solution in a single unit. The simulated return loss of the back-to-back structure is larger than 12 dB, while the insertion loss is smaller than 1.2 dB over the entire W-band (75-110 GHz).

spatial prayer combining

electromagnetic packaging

gap waveguide technology

Waveguide transition



Alhassan Aljarosha

Eindhoven University of Technology

A. B. Smolders

Eindhoven University of Technology

Marianna Ivashina

Chalmers, Signals and Systems, Communication, Antennas and Optical Networks

Rob Maaskant

Eindhoven University of Technology

2017 International Symposium on Antennas and Propagation (ISAP)

978-1-5386-0465-6 (ISBN)

International Symposium on Antennas and Propagation (ISAP)
Phuket, Thailand,

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