Magnetostatic wave single and multiple stage resonators

Marcelli, R.; Rossi, M.; Gasperis, P. De; Su, Jun

doi:10.1109/20.539324

Cited by 27 publications

(9 citation statements)

References 11 publications

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“…However, the approximate method proposed in [3] and usually used in such calculations does not take the precise distribution of the current on the microstrip into account and does not allow one to calculate the reactive part of the line impedance, which is necessary to calculate, e.g., a resonator filter [1].…”

Section: Introductionmentioning

confidence: 99%

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Impedance of the microstrip line for magnetostatic backward volume waves

Timoshenko

Babicheva

Иванов

et al. 2009

Radiophys Quantum El

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We study excitation of magnetostatic backward volume waves on the microstrip line. The relation between the current density in the line and the normal component of the magnetic induction is found. The impedance of the line per unit length, i.e., its reactance and radiation resistance per unit length, is represented as a functional of the current density. The dependence of the operating-wave radiation resistance on the transverse size of the line and the width of the dielectric gap is studied. The radiation resistances of multistrip array and meander-type converters of magnetostatic backward volume waves are calculated.

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Section: Introductionmentioning

confidence: 99%

“…Recently, enhanced interest has been shown in using magnetostatic backward volume waves in resonator filters [1] and quasioptical analogs of microwave elements [2]. To design such devices, one should calculate the impedance per unit length of a microstrip line, which is generally used to excite magnetostatic backward volume waves.…”

Section: Introductionmentioning

confidence: 99%

Impedance of the microstrip line for magnetostatic backward volume waves

Timoshenko

Babicheva

Иванов

et al. 2009

Radiophys Quantum El

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“…If the lumped-equivalent circuit model for this kind of device can be established to capture the important characteristics (such as the passband frequency and bandwidth) in advance, then it can greatly shorten the design time and improve design efficiency. For example, Marcelli et al [44] established a lumped-equivalent circuit model for a magnetostatic wave (MSW) straight edge resonator. Tsai et al [45] established a lumped-equivalent circuit model for a magnetic tunable bandstop filter by using YIG/GGG-GaAs laminate structure.…”

Section: Introductionmentioning

confidence: 99%

Lumped-equivalent circuit model for multi-stage cascaded magnetoelectric dual-tunable bandpass filter

Zhang¹,

Zhu²,

Zhou

2015

Chinese Phys. B

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A lumped-equivalent circuit model of a novel magnetoelectric tunable bandpass filter, which is realized in the form of multi-stage cascading between a plurality of magnetoelectric laminates, is established in this paper for convenient analysis. The multi-stage cascaded filter is degraded to the coupling microstrip filter with only one magnetoelectric laminate and then compared with the existing experiment results. The comparison reveals that the insertion loss curves predicted by the degraded circuit model are in good agreement with the experiment results and the predicted results of the electromagnetic field simulation, thus the validity of the model is verified. The model is then degraded to the two-stage cascaded magnetoelectric filter with two magnetoelectric laminates. It is revealed that if the applied external bias magnetic or electric fields on the two magnetoelectric laminates are identical, then the passband of the filter will drift under the changed external field; that is to say, the filter has the characteristics of external magnetic field tunability and electric field tunability. If the applied external bias magnetic or electric fields on two magnetoelectric laminates are different, then the passband will disappear so that the switching characteristic is achieved. When the same magnetic fields are applied to the laminates, the passband bandwidth of the two-stage cascaded magnetoelectric filter with two magnetoelectric laminates becomes nearly doubled in comparison with the passband filter which contains only one magnetoelectric laminate. The bandpass effect is also improved obviously. This research will provide a theoretical basis for the design, preparation, and application of a new high performance magnetoelectric tunable microwave device.

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“…Magnetostatic wave (MSW) technology is well known for providing frequency tunable filters and oscillators for linear and non-linear microwave signal processing [1 -4]. Planar microwave oscillators and filters based on MSW excitation in epitaxial garnet films propose themselves as a natural improvement of the existing devices, because they exhibit reasonable Q ext values (oscillators: between 1000 and 3000, resonators: more than 3000) and broadband tunability [5][6][7]. The operative frequency limits depend just on the active part (when oscillators are considered) and on the dc magnetic bias for the MSW resonator.…”

Section: Introductionmentioning

confidence: 99%

Band-stop magnetostatic wave resonators

et al. 2003

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Two band-stop SERs (resonator A and resonator B) on silicon membrane were obtained and characterized. The frequency tunability domain of these resonators was between 3 GHz and 9.5 GHz ca. obtained by changing the dc magnetic bias field between H appl = 0.02 T and H appl = 0.34 T. The measurements of the S 21 parameter demonstrate a suppression of more than 20 dB of the high order modes, showing a good selectivity of this kind of resonator. The rejection ratio was better than -20 dB in the frequency domain from f = 3 GHz to f = 9.5 GHz for the resonator A and better than -20 dB between f = 4.2 GHz and f = 9.5 GHz for the resonator B. These results demonstrate the possibility to obtain microwave band-stop resonators supported on silicon membrane with high isolation and rejection ratios.

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Magnetostatic wave single and multiple stage resonators

Cited by 27 publications

References 11 publications

Impedance of the microstrip line for magnetostatic backward volume waves

Impedance of the microstrip line for magnetostatic backward volume waves

Lumped-equivalent circuit model for multi-stage cascaded magnetoelectric dual-tunable bandpass filter

Band-stop magnetostatic wave resonators

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