Toward wide-band low-loss gap-waveguide-integrated grid amplifiers

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5 Citations (Scopus)


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)
Original languageEnglish
Title of host publication2017 International Symposium on Antennas and Propagation, ISAP 2017
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Number of pages2
ISBN (Electronic)978-1-5386-0465-6
ISBN (Print)978-1-5386-0466-3
Publication statusPublished - 21 Dec 2017
Event2017 International Symposium on Antennas and Propagation (ISAP 2017) - Phuket, Thailand
Duration: 30 Oct 20172 Nov 2017
Conference number: 22


Conference2017 International Symposium on Antennas and Propagation (ISAP 2017)
Abbreviated titleISAP 2017
Internet address


  • Optical waveguides, Waveguide transitions, Planar waveguides, System-on-chip, Packaging
  • spatial power combining
  • electromagnetic packaging
  • Waveguide transition
  • integration
  • gap waveguide technology


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