Simple Design of Broadband Polarizers Using Transmissive Metasurfaces for Dual Band Ku/Ka Band Applications

Article Engineering, Electrical & Electronic

A Transmissive Frequency-Reconfigurable Cross-Polarization Conversion Surface

Peng Fei et al.

Summary: A transmissive frequency-reconfigurable cross-polarization conversion surface is proposed, which utilizes PIN diodes to achieve switchable cross-polarization conversion of incoming waves at different frequencies.

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS (2022)

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Article Chemistry, Analytical

Dual-Frequency Linear-to-Circular Polarization Converter for Ka-Band Applications

Francesco Greco et al.

Summary: A dual-band linear-to-circular planar polarization converter based on a multilayer printed circuit board (PCB) is proposed and demonstrated. It utilizes a periodic surface structure with six substrate layers and five foam spacers. The converter generates different circularly polarized waves in two frequency bands by illuminating it with a linearly polarized wave.

SENSORS (2022)

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Article Engineering, Electrical & Electronic

Dual-Band Ultrathin Polarization Converter for S-Band Microwave Transmission

R. Adeline Mellita et al.

Summary: In this study, a low-profile dual-band frequency selective surface (FSS) was designed as a polarizer for satellite communication. It effectively converts linearly polarized electromagnetic waves of specific frequency ranges into circularly polarized waves. The structure's performance was confirmed through experimental and simulated tests.

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS (2022)

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Article Chemistry, Analytical

Transforming Linear to Circular Polarization on Horn Antennas by Using Multiple-Layer Frequency Selective Surfaces

Adelaida Heiman et al.

Summary: This article presents a technique for transforming the polarization of a pyramidal horn antenna by adding multiple layers of frequency-selective surfaces in front of the aperture. The proposed technique can be used as a feed element for a parabolic reflector antenna for maritime satellite communication systems or as part of a sensor for finding the direction of arrival of a wave.

SENSORS (2022)

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Article Engineering, Electrical & Electronic

Dual-Linear-to-Circular Polarization Converter Based Polarization-Twisting Metasurface Antenna for Generating Dual Band Dual Circularly Polarized Radiation in Ku-Band

Pei Yang et al.

Summary: A polarization-twisting metasurface antenna (PTMA) is proposed to generate dual-band dual-circularly polarized (CP) radiation in the Ku-band. By integrating a dual-linear-to-circular polarization converter (DLCPC) with a linear polarization conversion metasurface (LPCM), the PTMA is capable of realizing both left hand CP (LHCP) and right hand CP (RHCP) radiation.

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION (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 Chemistry, Analytical

CP Antenna with 2 x 4 Hybrid Coupler for Wireless Sensing and Hybrid RF Solar Energy Harvesting

Irfan Mujahidin et al.

Summary: The research focuses on the main challenge faced by RF energy harvesting systems in providing relatively small electrical power to wireless sensor devices using microwaves. The solution is to implement a new device combining circularly polarized rectenna with circular polarization sensitivity integrated with a thin-film solar cell. Through the use of dual-feed antennas and an asymmetric hybrid coupler, energy can be harvested and used for charging information equipment.

SENSORS (2021)

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Article Chemistry, Physical

A scheme for simulating multi-level phase change photonics materials

Yunzheng Wang et al.

Summary: The research describes an accurate method to predict the microstructure and optical response of phase change materials during laser-induced heating. The accuracy of the method is verified by comparing the PCM's optical response and microstructure evolution with experimental results, showing its significance for designing and simulating programmable photonics devices.

NPJ COMPUTATIONAL MATERIALS (2021)

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Article Engineering, Electrical & Electronic

Design and Experimental Analysis of Dual-Band Polarization Converting Metasurface

Babar Kamal et al.

Summary: This letter presents the design and analysis of a dual-band polarization converting metasurface, which exhibits high polarization conversion ratios in two frequency ranges. The mechanism of polarization conversion is studied by examining surface currents for all resonance frequencies.

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS (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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Review Chemistry, Analytical

Circularly Polarized Hybrid Dielectric Resonator Antennas: A Brief Review and Perspective Analysis

Rajasekhar Nalanagula et al.

Summary: Recent trends in dielectric resonator antenna research include the use of compound and hybrid structures, which have shown interesting and significant features in terms of bandwidth, gain, and circular polarization generation. This critical review discusses the evolution of circularly polarized hybrid dielectric resonator antennas, with a general discussion on circular polarization and DR antennas, along with indications of future challenges and new design ideas. Additionally, state-of-the-art advances and associated design challenges of circularly polarized hybrid DR antennas are discussed, including empirical formulas to find resonance frequency of different hybrid modes.

SENSORS (2021)

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Article Engineering, Electrical & Electronic