Tunable Meta-Surface Antenna Array with Holographic Beamforming

Lemberg, Konstantin V.; Kosmynin, Aleksey N.; Stupnitsky, Dmitry A.; Grushevsky, Eugene O.; Podshivalov, I. V.

doi:10.1109/rmc50626.2020.9312354

Cited by 3 publications

(1 citation statement)

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“…The holographic artificial impedance surface (HAIS), a kind of sinusoidally-modulated reactant surface (SMRS) [1], [2], has attracted much interest in recent years since it features low profiles, high gain, and low cost [3]- [5]. The working mechanism of the HAIS combines the leaky wave theory, surface wave principle, artificial modulated surface concept, and holographic antennas technology [6].…”

Section: Introductionmentioning

confidence: 99%

Comparisons of Scalar and Tensor Circularly-Polarized Holographic Artificial Impedance Surfaces

Yao

Mei

Pedersen

et al. 2022

2022 16th European Conference on Antennas and Propagation (EuCAP)

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In principle, both scalar and tensor holographic artificial impedance surfaces (HAISs) can generate circularlypolarized waves. It is found, however, the previously-reported works on circularly-polarized holographic antennas are based on tensor impedance surfaces. This paper studies the generations of circularly-polarized waves by using scalar and tensor HAISs, and compare their performance in terms of design complexity, impedance bandwidth, 3-dB axial ratio (AR) bandwidth, realized gains, etc. The mechanisms of producing circularly-polarized waves using scalar and tensor HAISs are first formulated and presented. Two right-hand circularly-polarized holographic antennas are then implemented with the scalar and tensor HAISs, respectively, and simulated. The simulations conclude that the tensor HAIS indeed outperforms the scalar HAIS in generation of circularly-polarized waves. In particular, the peak gain of the tensor HAIS is much higher than that of the scalar HAIS. The conclusions obtained in this paper give a clear answer on designing circularly-polarized HAISs with good performance.

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