Research Output

Beam-Scanning Leaky-Wave Antenna Based on CRLH-Metamaterial for Millimeter-Wave Applications

  This paper presents empirical results of an innovative beam scanning leaky-wave antenna (LWA) which enables scanning over a wide angle from -35o to +34.5o between 57 GHz and 62 GHz, with broadside radiation centered at 60 GHz. The proposed LWA design is based on composite right/left-handed transmission-line (CRLH-TL) concept. The single layer antenna structure includes a matrix of 3×9 square slots that is printed on top of the dielectric substrate; and printed on the bottom ground-plane are Π and T-shaped slots that enhance the impedance bandwidth and radiation properties of the antenna. The proposed antenna structure exhibits metamaterial property. The slot matrix provides beam scanning as a function of frequency. Physical and electrical size of the antenna is 18.7×6×1.6 mm3 and 3.43λ_0×1.1λ_0×0.29λ_0, respectively; where λ_0 is free space wavelength at 55 GHz. The antenna has a measured impedance bandwidth of 10 GHz (55 GHz to 65 GHz) or fractional bandwidth of 16.7%. Its optimum gain and efficiency are 7.8 dBi and 84.2% at 62 GHz

  • Type:


  • Date:

    05 March 2019

  • Publication Status:


  • DOI:


  • Library of Congress:

    TK Electrical engineering. Electronics Nuclear engineering

  • Dewey Decimal Classification:

    621.382 Communications engineering

  • Funders:

    Historic Funder (pre-Worktribe)


Alibakhshikenari, M., Virdee, B. S., Shukla, P., See, C. H., Abd-Alhameed, R., Khalily, M., …Limiti, E. (2019). Beam-Scanning Leaky-Wave Antenna Based on CRLH-Metamaterial for Millimeter-Wave Applications. IET Microwaves, Antennas and Propagation, 13(8), 1129-1133.



Beam-scanning antenna, slot antenna, metamaterials, leaky-wave antenna, millimeter-wave frequency

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    This paper is a postprint of a paper submitted to and accepted for publication in IET Microwaves, Antennas & Propagationand is subject to Institution of Engineering and Technology Copyright. The copy of record is available at the IET Digital Library

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