A new design of a miniature microstrip resonator with interdigital structure

Belyaev, B. A.; Сержантов, А. М.; Bal’va, Ya. F.; Leksikov, A.A.; Galeev, R. G.

doi:10.1134/s1063785014110194

Cited by 6 publications

(4 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, due to a strong electromagnetic interaction between these resonators (which is related to small gaps between the microstrip conductors), their resonance frequencies exhibit strong repulsion. As a result, the lowest first mode of the multistrip resonator has a resonance frequency f 1 Ӷ f 0 [14]. For this reason, the dimensions of a mul tipole filter with the pass band determined by the low est mode resonances of interacting resonators can be significantly reduced, which is the first important advantage of the filter design under consideration.…”

mentioning

confidence: 98%

“…The proposed device employs original resonators with a interdigital structure of microstrip conductors formed on the top side of a dielectric substrate, which are distinguished from ana logs in the fact that both bases of the interdigital struc ture are connected along the entire width to a screen-the bottom metal coated side of the substrate [14]. The inset to Fig.…”

mentioning

confidence: 99%

“…An analysis of this value for the first mode (Q 1 ) as the function of design param eters of a multistrip resonator with interdigital con ductors was carried out in [14]. It was established, in particular, that Q 1 increases in proportion to the square root of the number (N) of pins in the interdigital struc ture.…”

mentioning

confidence: 99%

See 2 more Smart Citations

A new design of a miniature filter on microstrip resonators with an interdigital structure of conductors

et al. 2015

Self Cite

View full text Add to dashboard Cite

A microstrip bandpass filter of new design based on original resonators with an interdigital struc ture of conductors has been studied. The proposed filters of third to sixth order are distinguished for their high frequency selective properties and much smaller size than analogs. It is established that a broad stop band, extending up to a sixfold central bandpass frequency, is determined by low unloaded Q of higher resonance mode and weak coupling of resonators in the pass band. It is shown for the first time that, as the spacing of interdigital stripe conductors decreases, the Q of higher resonance mode monotonically drops, while the Q value for the first operating mode remains high. A prototype fourth order filter with a central frequency of 0.9 GHz manufactured on a ceramic substrate with dielectric permittivity ε = 80 has microstrip topology dimen sions of 9.5 × 4.6 × 1 mm 3 . The electrodynamic 3D model simulations of the filter characteristics agree well with the results of measurements.

show abstract

mentioning

confidence: 98%

mentioning

confidence: 99%

See 1 more Smart Citation

A new design of a miniature filter on microstrip resonators with an interdigital structure of conductors

et al. 2015

Self Cite

View full text Add to dashboard Cite

show abstract

“…Previously, we have presented an idea of multiconductor resonator and its realizations in multilayer [24] and interdigital microstrip configurations [25,26]. For the 3-layered structure, a filter is compact and has a wide stopband (10.5f 0 ) at the −100 dB level.…”

Section: Introductionmentioning

confidence: 99%

High-Quality Compact Interdigital Microstrip Resonator and Its Application to Bandpass Filter

Belyaev¹,

Сержантов²,

Bal'va³

et al. 2017

PIER C

View full text Add to dashboard Cite

Abstract-A compact microstrip resonator based on the interdigital structure is proposed. The resonator has several times higher unloaded quality factor compared to similar resonators presented previously and can even reach the Q-factor of a regular λ/4 resonator. The size of the resonator can be significantly reduced with a substantial increase in quality factor by incrementing the number of fingers in the interdigital structure. In addition, for each gap between the fingers, there exist an optimal number of fingers that correspond to the maximum Q-factor. An extension of the upper stopband for a bandpass filter designed using the resonator can be achieved by the interconnection of the fingers in each of the comb structures. The simulation results are proven by fabricated resonators and a fourpole bandpass filter. For the central frequency of 2000 MHz and 16.2% fractional bandwidth, the lateral size of the filter is only 11.5 mm × 3.8 mm for alumina substrate (eps = 9.8). The filter has an upper stopband up to 5.8f 0 at the level −40 dB.

show abstract

Novel High-Quality Compact Microstrip Resonator and its Application to Bandpass Filter

Belyaev

Сержантов

Bal’va

et al. 2015

IEEE Microw. Wireless Compon. Lett.

Self Cite

View full text Add to dashboard Cite

Abstract-A novel compact microstrip resonator based on interdigital structure is proposed. The resonator has several times higher quality factor than similar resonators presented earlier. It is shown that the size of the resonator can be significantly reduced with substantial increase in quality factor by incrementing the number of pins in the interdigital structure. A 4-pole bandpass filter with central frequency 900 MHz and an overall size 4.6 mm 10.0 mm was designed and fabricated on the base of the proposed structure. The measured upper stopband of the filter was found to be up to at the level 40 dB.Index Terms-Bandpass filter (BPF), interdigital resonator, microstrip, microstrip resonator.

show abstract

A new design of a miniature microstrip resonator with interdigital structure

Cited by 6 publications

References 7 publications

A new design of a miniature filter on microstrip resonators with an interdigital structure of conductors

A new design of a miniature filter on microstrip resonators with an interdigital structure of conductors

High-Quality Compact Interdigital Microstrip Resonator and Its Application to Bandpass Filter

Novel High-Quality Compact Microstrip Resonator and its Application to Bandpass Filter

Contact Info

Product

Resources

About