Wideband and Low-Loss High-Temperature Superconducting Bandpass Filter Based on Metamaterial Stepped-Impedance Resonator

Liu, Haiwen; Hong-wei, Jiang; He, Yusheng

doi:10.1109/tasc.2016.2529719

Cited by 20 publications

(28 citation statements)

References 14 publications

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“…Finally, harmonic balance (HB) method, using ADS software, has been employed to evaluate non-linear performance of introduced filter. There are good agreements between proposed model and measurement results that are published in [25]. Moreover, we considered effects of the non-linear behaviours on phase constant (β) and attenuation factor (α).…”

Section: Introductionmentioning

confidence: 65%

“…Superconducting metamaterial composite right/left handedtransmission line (CRLH-TL) filter based on the stepped impedance resonator that was proposed in [25] is shown in Fig. 1.…”

Section: Linear Equivalence Circuit Modelmentioning

confidence: 99%

“…As was mentioned previously, we are going to analyse and model the non-linearity in a fabricated superconducting metamaterial based on the stepped impedance resonator that is published in [25]. This filter is made of 700 nm YBCO deposited on a 0.5 mm thick MgO substrate with relative permittivity of 9.78 and the design parameters are:…”

Section: Linear Equivalence Circuit Modelmentioning

confidence: 99%

“…2b and c, the introduced linear circuit model is enough accurate around the frequency of 2.5 GHz, therefore this model can be used to have a precise non-linear circuit model around that frequency. So in this section, based on introduced linear circuit model and considering accuracy of linear model, we are going to model non-linear behaviours in fabricated filter from [25].…”

Section: Distributed Non-linear Circuit Modelmentioning

confidence: 99%

“…In this paper, we are going to present a distributed non-linear circuit model for a superconducting metamaterial filter based on stepped impedance resonator that is presented and fabricated in [25]. The layout of this filter is shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Analysing and modelling non‐linearity in superconducting metamaterial filter based on stepped impedance resonators

Mazdouri

Javadzadeh

2017

IET Microwaves, Antennas & Propagation

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There are non‐linear behaviours in superconductive circuits such as superconducting metamaterial filter. In this study, the authors propose a distributed non‐linear equivalent circuit model for the superconducting metamaterial filter based on the stepped impedance resonator. This model can be used to predict the non‐linear behaviours like the third‐order intermodulation distortion and the harmonic generation. In the proposed non‐linear model, to have an accurate prediction, the authors considered both quadratic and modulus non‐linearity dependence on the current. Thereafter, this model analyses the non‐linearly using harmonic balance (HB) method at different temperatures and different input powers. There are good agreements between non‐linear simulation results and the measured ones. Moreover, based on the proposed model, the authors consider effects of the non‐linear behaviours on main parameters in the metamaterial structures such as phase constant, attenuation factor, plasma frequency, relative permittivity and permeability. Finally, the results related to variation of these parameters at different temperatures and specific input power are presented in linear and non‐linear regimes.

show abstract

Section: Introductionmentioning

confidence: 65%

“…Superconducting metamaterial composite right/left handedtransmission line (CRLH-TL) filter based on the stepped impedance resonator that was proposed in [25] is shown in Fig. 1.…”

Section: Linear Equivalence Circuit Modelmentioning

confidence: 99%

Section: Linear Equivalence Circuit Modelmentioning

confidence: 99%

Section: Distributed Non-linear Circuit Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Analysing and modelling non‐linearity in superconducting metamaterial filter based on stepped impedance resonators

Mazdouri

Javadzadeh

2017

IET Microwaves, Antennas & Propagation

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Synthesis of miniaturized filtering coupled‐line trans‐directional coupler with wide suppression band

Liu

Wang

et al. 2021

Int J RF Microw Comput Aided Eng

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In this paper, the synthesis of miniaturized filtering coupled‐line trans‐directional (CL‐TRD) coupler with wide suppression band is presented. This coupler is formed by two parallel coupled lines, one capacitor‐loaded coupled line, and four sub‐circuits. With the introduction of the sub‐circuits, extra transmission poles located at the cut‐off frequency are generated, resulting in high frequency selectivity. Size reduction is also achieved. Design equations of the filtering CL‐TRD coupler are derived using the even‐odd mode decomposition analysis and design procedures are provided for guidance. For demonstration, a 3 dB prototype with a size of 0.46 λg × 0.21 λg is designed, fabricated and measured. The measured results validate the 32% bandwidth centered at 1 GHz with more than 10 dB return loss/isolation, less than 0.5 dB amplitude imbalance and 5° phase error. Besides, a 15 dB wide stopband from 1.18 to 5.07 GHz (5.07f0) is obtained with a sharped skirt selectivity.

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Design of compact high temperature superconducting dual‐band filter using dual‐composite right‐/left‐handed resonators

Zhang

Liu

Zhang

et al. 2021

Micro & Optical Tech Letters

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A compact high temperature superconducting dual‐band band‐pass filter (BPF) is presented based on compact dual‐mode dual‐composite right‐/left‐handed (D‐CRLH) resonators in this article, which is composed of spiral coupled lines and meander lines. In addition, the equivalent circuit model and the admittance matrix are given to analyze the resonant characteristics of the designed D‐CRLH resonator. Then, the proposed filter realizes the flexible controllability of the center frequencies and coupling coefficient of the two passbands, which greatly increases the design freedom of dual‐band BPFs. Finally, the proposed filter was designed and etched on a 0.5‐mm‐thick MgO substrate with double‐sided YBCO thin‐films for demonstration. The measured results match the simulated ones well, indicating the feasibility of the proposed design method.

show abstract

Wideband and Low-Loss High-Temperature Superconducting Bandpass Filter Based on Metamaterial Stepped-Impedance Resonator

Cited by 20 publications

References 14 publications

Analysing and modelling non‐linearity in superconducting metamaterial filter based on stepped impedance resonators

Analysing and modelling non‐linearity in superconducting metamaterial filter based on stepped impedance resonators

Synthesis of miniaturized filtering coupled‐line trans‐directional coupler with wide suppression band

Design of compact high temperature superconducting dual‐band filter using dual‐composite right‐/left‐handed resonators

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