Design of Dual-Mode Dual-Band Superconducting Filters

Ma, Pengyu; Wei, Bin; Cao, Bisong; Guo, Xubo; Jiang, Linan

doi:10.1109/tasc.2017.2732288

Cited by 16 publications

(18 citation statements)

References 26 publications

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“…In the frequency transformation, ω m has an important effect on both two passbands, and it is given by 19 :…”

Section: Resonator Designmentioning

confidence: 99%

“…where γ is a normalized coefficient. By solving (11) for the design targets, the parameters in frequency According to the synthesis method proposed by Ma et al, 19 the design procedure is followed the same as the single-band filter design with cascading single-mode resonators. According to the conventional filter design method, the coupling coefficients (k) and the external quality factor (Q e ) are theoretically given by 19,37 :…”

Section: Resonator Designmentioning

confidence: 99%

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A new compact, wide bandwidthdual‐passbandmicrostrip filter based ondual‐mode stepped‐impedance‐resonators

Moattari

Bijari

Razavi

2022

Int J RF Mic Comp-Aid Eng

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In this article, a new compact, wide bandwidth dual-band bandpass filter (DB-BPF) with four transmission zeros (TZs) is proposed. A dual-path configuration is realized by cascading different dual-mode resonators. The novel dualmode resonators are based on stepped impedance resonators (SIRs) that generate the TZs owing to their intrinsic characteristics. The proposed DB-BPF can fulfill simultaneous independent control of the external and internal-resonator coupling. The design procedure based on the cascaded dual-mode resonators and frequency transformation is also introduced. The surface current distributions are simulated to verify the performance of the proposed filter. The measured results show 2.14/4.33 GHz DB-BPF with 3-dB fractional bandwidth (FBW) of 0.27/0.15, respectively, which is suitable for WLAN applications. The return and insertion losses of the passband are better than 15/15-dB and less than 0.8/1.3-dB, respectively. The overall physical size of the fabricated DB-BPF is 20.4 mm Â 20.4 mm, equivalent to 0.23λ g Â 0.23λ g , where λ g is the guided wavelength at 2.14 GHz.The simulation results are in good agreement with the measurement results.

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“…In the frequency transformation, ω m has an important effect on both two passbands, and it is given by 19 :…”

Section: Resonator Designmentioning

confidence: 99%

Section: Resonator Designmentioning

confidence: 99%

A new compact, wide bandwidthdual‐passbandmicrostrip filter based ondual‐mode stepped‐impedance‐resonators

Moattari

Bijari

Razavi

2022

Int J RF Mic Comp-Aid Eng

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show abstract

“…There are many synthesis methods for DB-BPFs based on a coupling matrix [4][5][6][7][8][9][10][11] or K-or J-inverters. [12][13][14][15] Those are excellent methods when a DB-BPF structure is configured using series or parallel resonators, external quality factor Q e and coupling coefficient k ij (i, j = 1 to N),…”

Section: Circuit Synthesis Of Db-bpfmentioning

confidence: 99%

Compact Dual-band BPF Composed of <i>LC J</i>-inverters Using Lumped Elements

Matsumura

Ono

Wada

2021

Transactions of The Japan Institute of Electronics Packaging

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“…A dual-mode dual-band bandpass filter using ridge gap structure is presented in [7], which needs only a single input and output. Many other types of single band [8][9][10][11] or dual-band [12] dual-mode filters have been studied in recent years.…”

Section: Introductionmentioning

confidence: 99%