A Compact Symmetrical Single-Cell Bidirectional Absorption Common-Mode Filter

Liu, Hsu-Wei; Cheng, Chien‐Chuan; Wu, Tzong‐Lin

doi:10.1109/tcpmt.2022.3158333

Cited by 7 publications

(4 citation statements)

References 33 publications

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“…A bidirectional version of the previous A-CMF was reported in [81] by the same authors. To achieve bidirectional common-mode absorption, the structure was equipped with two resistors, rather than one, terminating the pair of meandered slotlines, in a symmetric configuration with regard to the bisecting plane between the input and output ports (see further details in [83]).…”

Section: E Absorptive Common-mode Filters (A-cmfs)mentioning

confidence: 98%

“…Therefore, the reflected common-mode noise can be driven through the whole system and be the cause of unexpected radiation. To alleviate this problem, the so-called absorptive common-mode filters (A-CMFs) have been proposed in the last decade [51], [52], [53], [74], [75], [76], [77], [78], [79], [80], [81], [82], [83], [84], [85]. Such A-CMFs can absorb (or dissipate) the common-mode noise utilizing resistors or lossy materials, thereby preventing common-mode noise reflection, and hence, undesired radiation.…”

Section: E Absorptive Common-mode Filters (A-cmfs)mentioning

confidence: 99%

“…For this reason, these structures have been designated as unidirectional A-CMFs, and examples can be found in [74], [75], [76], [77], [79], [83]. By contrast, there are other A-CMF architectures able to dissipate the common-mode noise regardless on the circuit side from where it is injected (bidirectional A-CMFs [51], [52], [53], [78], [81], [82]). The dissipative element in an A-CMF is usually a resistor, or a set of resistors.…”

Section: E Absorptive Common-mode Filters (A-cmfs)mentioning

confidence: 99%

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Balanced Microwave Transmission Lines, Circuits, and Sensors

Martín¹,

Medina

2023

IEEE J. Microw.

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This paper provides an overview of balanced (or differential-mode) structures operating at microwaves, including common-mode suppression filters, balanced filters and circuits with intrinsic common-mode suppression, and differential-mode sensors. The increasing interest for balanced structures within the framework of communication circuits and sensors, related to their major robustness against electromagnetic interference (EMI), noise, and environmental factors, is duly justified. Then the paper reports various approaches for the implementation of common-mode suppression filters, balanced filters and circuits (including narrowband and wideband filters, multi-band filters, power dividers, couplers and phase shifters), and differential-mode sensors (mainly devoted to the measurement of permittivity and related variables). Rather than providing a detailed analysis of the different considered implementations/approaches, the main goal of this review paper is to discuss, and compare in some cases, the main proposed strategies (pointed out in the up-to-date state-of-the-art) for optimizing the performance of the various differential-mode devices under study.

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Section: E Absorptive Common-mode Filters (A-cmfs)mentioning

confidence: 98%

Section: E Absorptive Common-mode Filters (A-cmfs)mentioning

confidence: 99%

Section: E Absorptive Common-mode Filters (A-cmfs)mentioning

confidence: 99%

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Balanced Microwave Transmission Lines, Circuits, and Sensors

Martín¹,

Medina

2023

IEEE J. Microw.

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“…The main objective is to miniaturize the one-layer conventional meander structure working at the 2.4 GHz ISM band while keeping the same operational parameters. On the other hand, the multilayer meander structure under study might be used in the filter technologies in the ISM frequency band, where miniaturization is one of the biggest issues [38,39]. The initial conventional single-layer meander structure is taken from our earlier research [40], whose dimensions are discussed in the materials and methods section.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Properties of the Multilayer Meander Structures for Wireless Communications

Belova-Plonienė,

Krukonis,

Urbanavičius

et al. 2023

Electronics

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Multilayer meander structures for wireless communications are presented in this paper. The miniaturization of meander structures is solved by positioning the meander conductor in multiple layers. The influence of the increasing number of layers and connecting vias on the operational parameters of the meander structures is investigated. Three-dimensional models of the meander structures are designed and analyzed in the CST Microwave Studio© software package. The general mathematical model of the meander structure is presented. The computer-based simulation is verified by a physical experiment and analytical calculations. The investigation shows that it is possible to miniaturize the meander structure by placing it into different layers and connecting the meander conductors with vias. The overall length of the meander structure is decreased by 48% from 16.24 mm to 8.4 mm, while the delay time td is changed only by less than 3.2% and increased till 1.145 ns, which is 35 ps. The overall dimensions of the miniaturized meander structure are 8.4 × 17.35 × 0.76 mm. The designed structure is suitable for operation at a 2.4–2.5 GHz ISM frequency band.

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