Dual-Band Dual-Polarization Decoupling Metasurface Using Stacked Mushroom Structure With Asymmetric Via Posts

This letter proposes a dual-band dual-polarization decoupling metasurface using a stacked mushroom structure with asymmetric via posts. The dual-band operation of the metasurface is accomplished by using two strips with different lengths and by vertical and horizontal spacing between the two strips....

Full description

Saved in:
Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2024, Vol.23 (6), p.1685-1689
Main Authors: Heo, Jin Myeong, Kim, Hyun, Kim, Dong-Yoon, Kim, Sang-Keun, Yun, Gwang-Ro, Byun, Gangil
Format: Article
Language:English
Subjects:
Antenna measurements
Antennas
Asymmetry
Boresights
Decoupling
Dual polarization (waves)
dual-band
dual-polarization
Leading edges
metasurface
Metasurfaces
Mushrooms
Polarization
Radiation sources
Resonant frequency
Strips
Surface impedance
surface wave suppression
Surface waves
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This letter proposes a dual-band dual-polarization decoupling metasurface using a stacked mushroom structure with asymmetric via posts. The dual-band operation of the metasurface is accomplished by using two strips with different lengths and by vertical and horizontal spacing between the two strips. By placing via posts to the leading edges of each strip, the metasurface converts surface waves into radiation sources independent of antenna polarization. This results in surface wave suppression and gain improvement in dual-polarized antennas. For verification, dual-polarized S - and X -band antennas and the metasurface are fabricated and measured. The measured results show maximum isolation improvement by 23.2 dB in the S -band and 27.1 dB in the X -band and bore-sight gain enhancement by more than 1.69 dB in both bands when using the metasurface.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2024.3366593