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Ka-Band Linear to Circular Polarization Converter Based on Multilayer Slab With Broadband Performance


Ka-Band Linear to Circular Polarization Converter Based on Multilayer Slab With Broadband Performance

Akbari, Mohammad ORCID: https://orcid.org/0000-0002-7436-6529, Farahani, Mohammadmahdi, Sebak, Abdel-Razik and Denidni, Tayeb A. (2017) Ka-Band Linear to Circular Polarization Converter Based on Multilayer Slab With Broadband Performance. IEEE Access, 5 . pp. 17927-17937. ISSN 2169-3536

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Official URL: http://dx.doi.org/10.1109/ACCESS.2017.2746800


In this paper, a Ka-band polarization converter is presented, which is based on multilayer slab. In order to improve impedance matching, metallic circular traces are printed periodically on each dielectric multilayer slab. Simulated results of the polarizer show that it can transform linearly polarized (LP) to circularly polarized (CP) fields over a frequency band from 23 to 35GHz (42%) with an insertion loss less than 0.5 dB. The transmitted CP wave by the polarizer is approximately robust under oblique illuminations. The polarizer is fabricated and measured by a wideband horn antenna satisfying the simulated results. Next, in order to design a high-gain CP structure around 30 GHz, an 8-element LP array antenna with Chebyshev tapered distribution is designed and integrated with the polarizer. Obviously, the antenna limits the overall bandwidth (nearly 28 to 31.5 GHz) due to the narrowband nature of the LP antenna array. When the polarizer is illuminated by an incident LP wave, the two linear components of the transmitted wave with approximately equal amplitudes and 90° phase difference on the frequency band of interest are produced. Experimental results of the proposed structure show a pure CP with a gain of 13 dBi at 30 GHz, which can be suitable for millimeter wave communication.

Divisions:Concordia University > Gina Cody School of Engineering and Computer Science > Electrical and Computer Engineering
Item Type:Article
Authors:Akbari, Mohammad and Farahani, Mohammadmahdi and Sebak, Abdel-Razik and Denidni, Tayeb A.
Journal or Publication:IEEE Access
  • Concordia Open Access Author Fund
Digital Object Identifier (DOI):10.1109/ACCESS.2017.2746800
Keywords:Polarizer, Ka-band, linear, circular, polarization converter, dielectric multilayer
ID Code:983213
Deposited On:14 Nov 2017 17:17
Last Modified:18 Jan 2018 17:56


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