Novel algorithm for designing reflect-array antennas based on analytical methods

This paper presents a comprehensive and accurate algorithm based on circuit model to design reflect-array antennas (RAAs). The proposed algorithm can extract geometry of RAA structure corresponding to radiation parameters without employing any approximation or optimization intervention into the algo...

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Bibliographic Details
Published inInternational journal of electronics and communications Vol. 97; pp. 280 - 289
Main Authors Nasrollahi, H., Fallah, M., Nazeri, Amir H., Abdolali, A.
Format Journal Article
LanguageEnglish
Published Elsevier GmbH 01.12.2018
Subjects
Circuit model
Multi-layer design
RAAs fabrication
Radiation parameter
Reflect-array antenna RAAs
Sub-wavelength
Sub-wavelength
Radiation parameter
Circuit model
Multi-layer design
RAAs fabrication
Reflect-array antenna RAAs
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ISSN1434-8411
1618-0399
DOI10.1016/j.aeue.2018.09.016

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Summary:This paper presents a comprehensive and accurate algorithm based on circuit model to design reflect-array antennas (RAAs). The proposed algorithm can extract geometry of RAA structure corresponding to radiation parameters without employing any approximation or optimization intervention into the algorithm. Simulation results for some comprehensive examples, verify the validity of the proposed algorithm. This method is simple, fast, accurate, and can be expanded to all species of RAAs with arbitrary geometries. One of the main problems confronted in RAAs is low bandwidth characteristics. To attain wide bandwidth, we exploited the proposed algorithm with combination of multi-layer design of RAAs and subwavelength element. Convergence is observed between simulation and fabrication results, asserting good accuracy in method. In 10–15 GHz band, the maximum gain and -1dB bandwidth of two-layer antenna is 31.4 dB and 18.5%, respectively.
ISSN:1434-8411
1618-0399
DOI:10.1016/j.aeue.2018.09.016