A Novel Circularly Polarized Folded Transmitarray Antenna with Integrated Radiation and Scattering Performance

Article Optics

Transmissive coding metasurface with dual-circularly polarized multi-beam

Si Jia Li et al.

Summary: This paper proposes a scheme for modulating dual-circularly polarized multi-beam using a transmissive coding metasurface, based on the Pancharatnam-Berry phase control technique and phase compensation principle.

OPTICS EXPRESS (2022)

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Article Multidisciplinary Sciences

Quad-Band Transmissive Metasurface with Linear to Dual-Circular Polarization Conversion Simultaneously

Zhuo Yue Li et al.

Summary: The study introduces a quad-band dual-circular transmissive metasurface (QCT-MS) capable of converting linear polarization waves to dual-circular polarization waves, suitable for multiband communication and multifunctional dual-circularly polarized antenna systems.

ADVANCED THEORY AND SIMULATIONS (2021)

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Article Optics

Programmable Controls to Scattering Properties of a Radiation Array

Si Jia Li et al.

Summary: EM waves are widely used in various applications, but controlling radiation and scattering dynamically remains a challenge. A solution combining a programmable metasurface with a radiation array has been proposed to manipulate scattering properties digitally and in real-time. The introduction of a field-programmable gate array extends, realizes, and verifies multiple functions of the meta-microstructure (MMS).

LASER & PHOTONICS REVIEWS (2021)

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Article Engineering, Electrical & Electronic

On the Use of Absorbing Metasurfaces in Microwave Imaging

Ziqi Liu et al.

Summary: This study explores the use of metallic-backed absorbing metasurfaces as enclosures for microwave imaging systems to reduce reflections and shield the system from external interference. Results show that standard inverse scattering algorithms can successfully process data collected under the metasurface enclosure and produce acceptable permittivity images. The advantages, disadvantages, and limitations of using absorbing metasurface enclosures are discussed.

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION (2021)

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Article Engineering, Electrical & Electronic

Low In-Band-RCS Antennas Based on Anisotropic Metasurface Using a Novel Integration Method

Huanhuan Yang et al.

Summary: This article presents a novel design strategy for reducing radar cross section (RCS) in the working band of antennas, using a combination of metasurface and antenna design to achieve low in-band RCS for microstrip patch antennas. The design also includes a frequency reconfigurable antenna derived from the radiation and scattering mechanism of the novel antenna, with a 4x4 array developed to achieve in-band RCS reduction while maintaining radiation performance. Experimental results confirm the effectiveness of the proposed strategy.

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION (2021)

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Article Engineering, Electrical & Electronic

A Dual-Polarized and High-Gain X-/Ka-Band Shared-Aperture Antenna With High Aperture Reuse Efficiency

Peng Mei et al.

Summary: This article introduces a dual-polarized and high-gain shared-aperture antenna operating in X- and Ka-bands, achieved by combining a folded transmitarray antenna and a Fabry-Perot cavity antenna. The shared aperture serves as both a phase-shifting surface and a partially reflective surface, resulting in 100% aperture reuse efficiency. The use of dual-polarized patch antennas allows for polarization flexibility, with simulated results confirming the antenna's performance.

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION (2021)

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Article Engineering, Electrical & Electronic

Folded Transmitarray Antenna With Circular Polarization Based on Metasurface

Jin Yang et al.

Summary: The proposed low-profile broadband planar circularly polarized folded transmitarray antenna demonstrates significant advantages including broad bandwidth, high gain, lower profile, planar geometry, and easy integration.

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION (2021)

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Article Engineering, Electrical & Electronic

Low-Cost, Wideband Checkerboard Metasurfaces for Monostatic RCS Reduction

Akila Murugesan et al.

Summary: This study introduces three wideband checkerboard metasurfaces (CMSs) made from low-cost materials for reducing monostatic radar cross-section (RCS), achieving a 10 dB reduction by adjusting the phase deviation conditions. The modifications made to the phase deviation conditions in different frequency bands successfully maximize the bandwidth and offer a bandwidth between 94% and 98% for a 10 dB RCS reduction.

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS (2021)

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Article Engineering, Electrical & Electronic

A K-Band Broadband Circularly Polarized Slot Antenna Based on L-Shaped Waveguide Cavity

Yifan Liu et al.

Summary: A new broadband circularly polarized antenna for K-band application is presented in the letter. The antenna achieves good performance with experiments showing good agreement with simulations, making it suitable for tough environment applications.

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS (2021)

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Article Engineering, Electrical & Electronic

Broadband Low-RCS and High-Gain Microstrip Antenna Based on Concentric Ring-Type Metasurface

Tong Li et al.

Summary: A novel integration strategy of microstrip antenna and metasurface is proposed to achieve low-RCS and improved radiation performance on a stealth cylindrical carrier. By optimizing antenna design and analyzing working mechanism, the gain is enhanced and impedance bandwidth is extended, while achieving RCS reduction both in-band and out-of-band simultaneously.

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION (2021)

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Article Optics

Asymmetric transmission for dual-circularly and linearly polarized waves based on a chiral metasurface

Bowen Han et al.

Summary: We propose a chiral metasurface that exhibits asymmetric transmission of double circularly and linearly polarized waves at the same frequency band. By utilizing specific microstructures, the manipulation of electromagnetic waves is successfully achieved, with experimental validation.

OPTICS EXPRESS (2021)

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Article Engineering, Electrical & Electronic

A Circularly-Polarized-Reconfigurable Patch Antenna With Liquid Dielectric

Zhe Chen et al.

Summary: In this paper, a circular-polarized-reconfigurable patch antenna based on fluidic control method is proposed for RFID application, with stable CP gain and high efficiency. By injecting liquid dielectric, the polarization of the antenna can be switched between LHCP and RHCP, covering a wide impedance bandwidth.

IEEE OPEN JOURNAL OF ANTENNAS AND PROPAGATION (2021)

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Article Physics, Multidisciplinary