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IEICE TRANSACTIONS on Communications

Propagation Characteristics of Honeycomb Structures Used in mm-Wave Radial Line Slot Antennas

Tung NGUYEN, Rushanthi JAYAWARDENE, Kimio SAKURAI, Jiro HIROKAWA, Makoto ANDO, Manuel SIERRA CASTAÑER, Osamu AMANO, Shuichi KOREEDA, Takaomi MATSUZAKI, Yukio KAMATA

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Summary :

Honeycomb structures are widely used in aerospace industry because of the lightweight and durable properties they provide. Here we propose to use a honeycomb core as the wave guiding structure in Radial Line Slot Antennas (RLSAs). This paper quantifies the propagation characteristics, especially the loss due to the honeycomb. At 32GHz, by choosing the proper cell size, both good isotropy and reasonably low effective dielectric constants are realized with the honeycomb as a spacer in a radial line waveguide. To estimate the material loss factor, several methods are compared and a factor of about 0.014∼0.018dB/mm is predicted and measured. A fabricated 90cm diameter honeycomb RLSA suffers about a 3.5∼5dB loss, which coincides with the estimates using the predicted loss factor.

Publication
IEICE TRANSACTIONS on Communications Vol.E97-B No.6 pp.1139-1147
Publication Date
2014/06/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E97.B.1139
Type of Manuscript
PAPER
Category
Antennas and Propagation

Authors

Tung NGUYEN
  Tokyo Institute of Technology
Rushanthi JAYAWARDENE
  Tokyo Institute of Technology
Kimio SAKURAI
  Tokyo Institute of Technology
Jiro HIROKAWA
  Tokyo Institute of Technology
Makoto ANDO
  Tokyo Institute of Technology
Manuel SIERRA CASTAÑER
  Universidad Polit'ecnica de Madrid
Osamu AMANO
  NEC-Toshiba Space Systems
Shuichi KOREEDA
  NEC-Toshiba Space Systems
Takaomi MATSUZAKI
  NEC-Toshiba Space Systems
Yukio KAMATA
  Institute of Space and Astronautical Science of JAXA

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