Low-profile wideband circularly polarised single-layer metasurface antenna

Low-profile wideband circularly polarised single-layer metasurface antenna

For access to this article, please select a purchase option:

Buy article PDF
(plus tax if applicable)
Buy Knowledge Pack
10 articles for £75.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Your details
Why are you recommending this title?
Select reason:
Electronics Letters — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

A novel low-profile single-fed circularly polarised single-layer metasurface antenna for wideband operation is proposed in this Letter. The metasurface antenna consists of nine unit cells arranged in a 3 × 3 layout. Four slits are incorporated into four of them, respectively, to form two orthogonal currents with 90° phase difference; hence, circularly polarised fields are excited. Moreover, a modified L-type slot is etched on the middle lattice to improve impedance bandwidth and axial ratio performance. The proposed dielectric-filled (ɛ r = 3.5, tan δ = 0.001) antenna with a low profile of 0.038λ 0 (λ 0 is the working wavelength at 5.7 GHz in free space) achieves about 18.0% measured −10 dB impedance bandwidth. The measured 3-dB axial ratio bandwidth of the proposed antenna is about 12.8% (5.35–6.08 GHz) with a broadside gain of more than 6.9 dBi.


    1. 1)
      • 1. Wong, K.L.: ‘Compact and broadband microstrip antennas’ (Wiley-IEEE Press, New York, 2002).
    2. 2)
    3. 3)
    4. 4)
    5. 5)
    6. 6)
    7. 7)
    8. 8)

Related content

This article has following corresponding article(s):
This is a required field
Please enter a valid email address