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All-dielectric left-handed metamaterial based on dielectric resonator:design,simulation and experiment

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Chinese Physics B 2011年第1期20卷 339-345页

作者：杨一鸣王甲富夏颂柏鹏李哲王军徐卓屈绍波 College of Science Air Force Engineering University Electronic Materials Research Laboratory Key Laboratory of the Ministry of EducationXi'an Jiaotong University Synthetic Electronic Information System Research Department Air Force Engineering University

Dipoles with Lorentz-type resonant electromagnetic responses can realise negative effective parameters in their negative resonant region. The electric dipole and magnetic dipole can realise, respectively, negative permittivity and negative permeability, so both the field distribution forms of electric and magnetic dipoles are fundamentals in designing left-handed metamaterial. Based on this principle, this paper studies the field distribution in high-permittivity dielectric materials. The field distributions at different resonant modes are analysed based on the dielectric resonator theory. The origination and influence factors of the electric and magnetic dipoles are confirmed. Numerical simulations indicate that by combining dielectric cubes with different sizes, the electric resonance frequency and magnetic resonance frequency can be superposed. Finally, experiments are carried out to verify the feasibility of all-dielectric left-handed metamaterial composed by this means.

关键词： all-dielectric left-handed metamaterial dielectric resonator magnetic dipole electric dipole

Low-Loss dielectric Material Characterization and High-Q resonator Design from Microwave to Millimetre Waves Frequencies

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Journal of Physical Science and Application 2011年第1期1卷 15-28页

作者： Jean-Michel Le Floch Michael E. Tobar Georges Humbert David Mouneyrac Denis Ferachou Romain Bara Michel Aubourg John G. Hartnett Dominique Cros Jean-Marc Blondy Jerzy Krupka School of Physics University of Western Australia 35 Stirling Hwy 6009 Crawley Western Australia XLIM UMR CNRS No 6172 123 av. A. Thomas 87060 Limoges Cedex France Institute of Microelectronics and Optoelectronics Warsaw University of Technology Kosykowa 75 Warsaw Poland

dielectric resonators are key components in many microwave and millimetre wave circuits and applications, including high-Q filters and frequency-determining elements for precision frequency synthesis. Multilayered and bulk low-loss single crystal and polycrystalline dielectric structures have become very important for designing these devices. Proper design requires careful electromagnetic characterisation of low-loss material properties. This includes exact simulation with precision numerical software and precise measurements of resonant modes. For example, we have developed the Whispering Gallery mode technique, which has now become the standard for characterizing low-loss structures. This paper will review some of the common characterisation techniques used in the microwave to millimetre wave frequency regime.

关键词： dielectric resonator Bragg mode whispering gaUery mode bulk and thin film characterization.

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电磁介质谐振器和谐振结构

微波学报 1988年第1期 54-63页

作者：李英上海科技大学

本文综述当代电磁介质谐振器和谐振结构的理论发展现状及其各种应用。

关键词： resonator dielectric resonator Resonant Structure

Bound states in the continuum and Fano resonances in the strong mode coupling regime

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Advanced Photonics 2019年第1期1卷 33-44页

作者： Andrey A.Bogdanov Kirill LKoshelev Polina VKapitanova Mikhail VRybin Sergey AGladyshev Zarina FSadrieva Kirill BSamusev Yuri SKivshar a Mikhail FLimonov ITMO University Department of Nanophotonics and MetamaterialsSt.PetersburgRussia Ioffe Institute St.PetersburgRussia Australian National University Nonlinear Physics CenterCanberraAustralia

The study of resonant dielectric nanostructures with a high refractive index is a new research direction in the nanoscale optics and metamaterial-inspired *** of the unique optically induced electric and magnetic Mie resonances,high-index nanoscale structures are expected to complement or even replace different plasmonic components in a range of potential *** study a strong coupling between modes of a single subwavelength high-index dielectric resonator and analyze the mode transformation and Fano resonances when the resonator’s aspect ratio *** demonstrate that strong mode coupling results in resonances with high-quality factors,which are related to the physics of bound states in the continuum when the radiative losses are almost suppressed due to the Friedrich–Wintgen scenario of destructive *** explain the physics of these states in terms of multipole decomposition,and show that their appearance is accompanied by a drastic change in the far-field radiation *** reveal a fundamental link between the formation of the high-quality resonances and peculiarities of the Fano parameter in the scattering cross-section *** theoretical findings are confirmed by microwave experiments for the scattering of high-index cylindrical resonators with a tunable aspect *** proposed mechanism of the strong mode coupling in single subwavelength high-index resonators accompanied by resonances with high-quality factors helps to extend substantially functionalities of all-dielectric nanophotonics,which opens horizons for active and passive nanoscale metadevices.

关键词： Fano resonance bound states in the continuum Mie resonance dielectric resonator meta-optics

Novel Ka-band low-noise down-converter assembly

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Journal of Southeast University(English Edition) 2006年第4期22卷 461-464页

作者：李鸣李兴国南京理工大学毫米波光波近感技术研究所南京210094

An efficient way to design a down-converter assembly for the Ka-band millimeter system is presented, in which dielectric resonators （DR＇s） are adopted in the Schottky barrier diode image recovery mixer and the local oscillator （LO）. DR structures guarantee high frequency stability with an acceptable volume. The configurations of low noise amplifier, mixer and oscillator in the assembly are described and fabricated to estimate the chain performance. According to the verification results, the assembly exhibits the noise figure of less than 5 dB over 1 GHz frequency range, and the single-sideband phase noise （200 kHz offset from carrier frequency） of - 70 dBc/Hz. Utilizing the DR structure, the frequency stability of the local oscillator is less than 60 × 10^-6/℃.

关键词： down-converter dielectric resonator noise figure conversion loss

Resonance phenomena in dielectric media: A review and comparison of acoustic and electromagnetic modes

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Journal of Advanced dielectrics 2023年第4期13卷 35-40页

作者： Gunnar Gidion Taimur Aftab Leonhard M.Reindl Stefan J.Rupitsch Department of Microsystems Engineering University of Freiburg Georges-Köhler-Allee 10679110 Freiburg im BreisgauGermany

The theory and application of resonances and vibrational modes are part of the foundation of *** this contribution,examples of acoustical resonators are highlighted,and compared to electromagnetic *** an example from architecture,we describe the phenomenon of whispering galleries;such modes are nowadays known in dielectric and optical resonators.A specimen of a semicircular whispering bench in Park Sanssouci in Potsdam is acoustically investigated and demonstrated to show low losses for sound propagation.A special acoustical bug is discussed which was used for the espionage of the *** in *** Sovyets could interrogate this passive device by radio *** working principle was based on the electromagnetic resonance of the cavity that the sound-sensitive membrane was part *** underlying relation between excitation and resonance is compared to the sound production in flue organ pipes.A stopped flue organ pipe was investigated using a piezoelectric film sensor inside the pipe *** results show that even-numbered modes,which are usually suppressed in the radiated sound of a stopped pipe,are still present in the vibrations inside the resonator.

关键词： Whispering gallery dielectric resonator passive wireless microphone flue organ pipe ferroelectret sensor

Analysis of Coupling between DR and Microstrip

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Journal of Electronic Science and Technology of China 2003年第1期1卷 12-14,59页

作者： LIAO Juan LIU Guanghu(School of Electronic Engineering,UESTC Chengdu 610054 China) School of Electronic Engineering UESTC Chengdu 610054 China

The coupling between dielectric resonator (DR) and microstrip is theoretically analyzed in *** equivalent circuit and corresponding components' expression are ***,the formula of thecoupling ratio is deduced,which is the critical parameter to calculate the values of *** analysis of thepaper can be used in modeling and strict design in DR applications such as dielectric resonator oscillators(DROs)and DR *** the end of the paper,an example of DRO design based on the analysis above is *** between modulation and measure shows the significance of the paper.

关键词： dielectric resonator microstrip coupling dielectric resonator oscillator

Characteristics and Applications of Dual-Gate EFT

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Characteristics and Applications of Dual-Gate EFT