Journal Article10.1109/LAWP.2021.3073907
Tunable Frequency Selective Surface With Angular Stability
32
TL;DR: In this paper, a two-layer structure composed of an array of wire grid and a split square ring loaded with two varactor diodes is proposed to achieve angular stability at 4.25 GHz.
read more
Abstract: In this letter, a paradigm for designing tunable frequency selective surfaces (FSSs) with angular stability is presented. The tunable FSS is implemented by nonresonant subwavelength unit cells loaded with varactor diodes, which can be applied in a dynamic and efficient compensation mechanism. The red shifts introduced by varactor diodes are used to compensate the deviation under oblique incident angles. The proposed tunable FSS is a two-layer structure composed of an array of wire grid and an array of split square ring loaded two varactor diodes. The periodicity of one split square ring is same with that of 2 × 2 wire grids. The equivalent circuit based synthesis method is analyzed to investigate the underlying principle of the proposed FSS. The experimental measurement is carried out in C-band frequency, which demonstrates the feasibility of this method. The measured results are in good agreement with the simulations, manifesting the angular stability at 4.25 GHz.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
A Flexible Multifunctional Active Frequency Selective Surface With Angular and Polarization Stability for Curved Surface Conformal
TL;DR: In this paper , a flexible multifunctional active frequency selective surface (MAFSS) with excellent angular stability and polarization insensitivity is presented, which consists of two metal layers printed on a thin, flexible substrate to achieve curved surface conformal capability.
13
FPGA-controlled Dual Band Multi-functional Active Frequency Selective Surface
Amin Khalilzadegan,Asal Malekara,Changiz Ghobadi,Javad Nourinia,Amin Damya +4 more
TL;DR: The proposed FPGA-controlled dual-band multi-functional active frequency selective surface exhibits high angular stability and offers various functionalities including polarization selection, electromagnetic switching, and dual-band characteristics.
7
Active frequency selective surfaces: a systematic review for sub-6 GHz band
Ashish Suri,Kumud Ranjan Jha +1 more
TL;DR: The systematic review of active frequency selective surfaces (AFSS) for sub-6 GHz band highlights the potential benefits and challenges associated with their implementation and design. The paper explores various aspects of AFSS including classifications, applications, and design issues. It emphasizes the unique circuits required for AFSS bias and the limitations faced in their implementation. The paper also discusses the potential benefits of AFSS over traditional FSSs and recommends future directions for research and development.
7
A Low-Profile Varactor-Tunable Bandpass Frequency Selective Surface With Angular Stability Property
Xianjun Sheng,Hong-Wei Wang +1 more
TL;DR: A low-profile varactor-tunable bandpass frequency selective surface with angular stability is presented. The structure is designed to be miniaturized and angularly stable at a wide range of frequencies.
4
References
•Book
Frequency Selective Surfaces: Theory and Design
Ben A. Munk
- 26 Apr 2000
TL;DR: In this article, the authors present a comparison of band-pass and Dichroic filter designs for one and two-dimensional periodic structures, and present an overview of the current state-of-the-art.
4.5K
Coding metamaterials, digital metamaterials and programmable metamaterials
TL;DR: Digital metamaterials consisting of two kinds of unit cells whose different phase responses allow them to act as ‘0’ and ‘1’ bits are developed to enable controlled manipulation of electromagnetic waves.
•Posted Content
Coding Metamaterials, Digital Metamaterials and Programming Metamaterials
TL;DR: In this paper, Wu et al. proposed a digital metamaterial with two kinds of unit cells with 0 and π phase responses, which they named as "0" and "1" elements.
2.1K
Frequency selective surface and gridarray
T.K. Wu
- 28 Sep 2014
TL;DR: In this paper, the basic structure of Periodic Structure Single Screen FSS Analyses Cascading of Multi-Screen FSS Multi-Band FSS Bandpass Radome FSS Materials and Fabrication Active Beam Control Arrays Quasi-Optical Grid Arrays
933