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Fabrication of Integrated PTFE-Filled Waveguide Butler Matrix for Short Millimeter-Wave by SR Direct Etching

Mitsuyoshi KISHIHARA, Masaya TAKEUCHI, Akinobu YAMAGUCHI, Yuichi UTSUMI, Isao OHTA

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Summary :

The microfabrication technique based on SR (Synchrotron Radiation) direct etching process has recently been applied to construct PTFE microstructures. This paper attempts to fabricate an integrated PTFE-filled waveguide Butler matrix for short millimeter-wave by SR direct etching. First, a cruciform 3-dB directional coupler and an intersection circuit (0-dB coupler) are designed at 180 GHz. Then, a 4×4 Butler matrix with horn antennas is designed and fabricated. Finally, the measured radiation patterns of the Butler matrix are shown.

Publication
IEICE TRANSACTIONS on Electronics Vol.E101-C No.6 pp.416-422
Publication Date
2018/06/01
Publicized
Online ISSN
1745-1353
DOI
10.1587/transele.E101.C.416
Type of Manuscript
PAPER
Category
Microwaves, Millimeter-Waves

Authors

Mitsuyoshi KISHIHARA
  Okayama Prefectural University
Masaya TAKEUCHI
  University of Hyogo
Akinobu YAMAGUCHI
  University of Hyogo
Yuichi UTSUMI
  University of Hyogo
Isao OHTA
  University of Hyogo

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