Design of Miniaturized Bandpass Filters Using Quasi-Lumped Multilayer Resonators

Miljanović, Dejan M.; Potrebić, Milka; Tošić, Dejan V.; Stamenković, Zoran

doi:10.1142/s0218126614500832

Cited by 4 publications

(4 citation statements)

References 15 publications

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“…This approach has been inspired by filter design techniques reported in [7,9,16]. We have made a comprehensive analysis of one type of the multilayer quasilumped resonator and the corresponding feeders [17,18]. From the design viewpoint, the filter implementation using these multilayer resonators is very flexible, but the 3D EM simulation is time consuming.…”

Section: Electric-circuit Model Of Bandpass Filtermentioning

confidence: 99%

“…For this modification, we decided to implement the interresonator coupling with the third segment of the spiral, for Band-I, and the fourth segment of the spiral, for Band-II and Band-III. This decision is motivated by the fact that the coupling with the third and the fourth segment of the spiral allows us to achieve the same coupling with smaller interresonator distance [18,24]. In addition, this modification reduces the footprint.…”

Section: Filter Design Using Electric-circuit Modelmentioning

confidence: 99%

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Design of Microwave Multibandpass Filters with Quasilumped Resonators

Miljanović¹,

Potrebić²,

Tošić³

2015

Mathematical Problems in Engineering

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Design of RF and microwave filters has always been the challenging engineering field. Modern filter design techniques involve the use of the three-dimensional electromagnetic (3D EM) solvers for predicting filter behavior, yielding the most accurate filter characteristics. However, the 3D EM simulations are time consuming. In this paper, we propose electric-circuit models, instead of 3D EM models, suitable for design of RF and microwave filters with quasilumped coupled resonators. Using the diakoptic approach, the 3D filter structure is decomposed into domains that are modeled by electric networks. The coupling between these domains is modeled by capacitors and coupled inductors. Furthermore, we relate the circuit-element values to the physical dimensions of the 3D filter structure. We propose the filter design procedure that is based on the circuit models and fast circuit-level simulations, yielding the element values from which the physical dimensions can be obtained. The obtained dimensions should be slightly refined for achieving the desired filter characteristics. The mathematical problems encountered in the procedure are solved by numerical and symbolic computations. The procedure is exemplified by designing a triple-bandpass filter and validated by measurements on the fabricated filter. The simulation and experimental results are in good agreement.

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Section: Electric-circuit Model Of Bandpass Filtermentioning

confidence: 99%

Section: Filter Design Using Electric-circuit Modelmentioning

confidence: 99%

Design of Microwave Multibandpass Filters with Quasilumped Resonators

Miljanović¹,

Potrebić²,

Tošić³

2015

Mathematical Problems in Engineering

Self Cite

View full text Add to dashboard Cite

show abstract

“…U prethodnom našem istraživanju prikazana je implementacija filtra propusnika opsega učestanosti korišćenjem spregnutih rezonatora realizovanih sa kvazi-koncentrisanim elementima [6] - [8]. U [1], [4] prikazana je slična tehnika implementacije filtara gde je rezonator realizovan sa uzemljenim kalemom, a kondukciono su spregnuti uvodnik i kalem rezonatora.…”

Section: Uvodunclassified

“…Zamjenske šeme su korištene za opisivanje predloženog rješenja rezonatora i sprege jednog tipa uvodnika i rezonatora [6], i pokazale su veliku tačnost i upotrebljivost u cilju verifikacije modelovanja.…”

Section: Uvodunclassified