Double-Layer Full-Corporate-Feed Hollow-Waveguide Slot Array Antenna in the 60-GHz Band

In order to achieve a wide bandwidth characteristic of high gain and high efficiency antennas, a double-layer hollow-waveguide slot array is proposed, where a full-corporate-feed waveguide is arranged in the lower layer. This antenna can be built up easily by the process of diffusion bonding of lami...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2011-08, Vol.59 (8), p.2844-2851
Main Authors: Miura, Y., Hirokawa, J., Ando, M., Shibuya, Y., Yoshida, G.
Format: Article
Language:English
Subjects:
Antenna arrays
Antennas
Apertures
Applied sciences
Arrays
Bandwidth
Couplings
Double-layer structure
Exact sciences and technology
Feeds
full-corporate-feed
high efficiency
Laminates
Noise levels
Radiocommunications
Reflection
Telecommunications
Telecommunications and information theory
waveguide slot array
Waveguides
Wideband
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Summary:In order to achieve a wide bandwidth characteristic of high gain and high efficiency antennas, a double-layer hollow-waveguide slot array is proposed, where a full-corporate-feed waveguide is arranged in the lower layer. This antenna can be built up easily by the process of diffusion bonding of laminated thin metal etching plates, which has high precision and is possibly a low cost technique. The radiating elements and the feed waveguide are designed to suppress the reflection over a wideband. The predicted bandwidth of the reflection less than -14 dB is 8.3% for a 16 × 16-element array antenna. A test antenna is fabricated in the 60-GHz band, and about 80% antenna efficiency with more than 32 dBi is achieved over 4.8 GHz.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2011.2158784