On the Actual Possibilities of Applying the Composite Right/Left-Handed Waveguide Technology to Slot Array Antennas

The novelties offered by using a composite right/left-handed (CRLH) waveguide as the feeding structure of a slot array antenna are surveyed for some common slot arrangements. Furthermore, a complete approach to the design of beam-steerable arrays using the CRLH waveguide technology and meeting a set...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2012-05, Vol.60 (5), p.2183-2193
Main Authors: Navarro-Tapia, M., Esteban, J., Camacho-Penalosa, Carlos
Format: Article
Language:English
Subjects:
Acceptability
Antenna arrays
Antenna measurements
Antennas
Applied sciences
Arrays
Beam steering
Beams (radiation)
composite right/left-handed (CRLH)
corrugated waveguides
Exact sciences and technology
Feeding
Gain
Impedance
Radiocommunications
Resonant frequency
Scanning
Slot antennas
slot arrays
Telecommunications
Telecommunications and information theory
traveling wave antennas
Waveguides
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Description
Summary:The novelties offered by using a composite right/left-handed (CRLH) waveguide as the feeding structure of a slot array antenna are surveyed for some common slot arrangements. Furthermore, a complete approach to the design of beam-steerable arrays using the CRLH waveguide technology and meeting a set of specific requirements is presented. To illustrate the proposed methodology, a 13-slot array antenna has been designed, built and measured. It provides a full-space beam scanning from - 40 ° to +30 ° as the frequency changes over a 25% bandwidth with a good input match, narrow beamwidth, moderate side-lobe performance and acceptable gain values.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2012.2189738