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https://doi.org/10.7305/automatika.53-1.143

Plate-laminated Waveguide Slot Array Antennas and its Polarization Conversion Layers

Jiro Hirokawa ; Department of Electrical and Electronic Engineering, Tokyo Institute of Technology, S-20, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan


Puni tekst: engleski pdf 1.911 Kb

str. 9-19

preuzimanja: 1.782

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Sažetak

This paper reviews not only the characteristic of the linearly-polarized plate-laminated waveguide slot array antenna in the 60 GHz band but also conversion to circular or tilted linear polarization by adding a layer of apertures over the antenna. The linearly-polarized antenna achieves about 80% antenna efficiency and more than 32 dBi of gain is achieved over 4.8 GHz bandwidth. The measured cross-polarization level is well suppressed below −45 dB in the boresite even though the slots are wide. The circularly-polarized 16×16-element array antenna achieves the axial ratio less than 3 dB over 2.5 GHz bandwidth. In the tilted linearly polarized 16 × 16-element array antenna, the measured cross polarization is below −30 dB in the boreside over approximately 5 GHz bandwidth.

Ključne riječi

Plate-laminated-waveguide; Corporate-feed; Polarization; Diffusion bonding; Millimeter-wave

Hrčak ID:

81295

URI

https://hrcak.srce.hr/81295

Datum izdavanja:

18.4.2012.

Podaci na drugim jezicima: hrvatski

Posjeta: 3.017 *