Coupled-Mode Analysis of Line Parameters of Coupled Microstrip Lines

Matsunaga, Masato; Katayama, M.; Yasumoto, Kiyotoshi

doi:10.2528/pier99032902

Cited by 31 publications

(20 citation statements)

References 10 publications

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“…Figure 1 shows a conventional microstrip resonator using parallel unilateral-coupled transmission line. Because of its symmetrical property, the structure can be analyzed by adopting odd-and evenmode technique [11][12][13][14][15]. According to reference [16], we can obtain the following Equation (1) to design the unilateral-coupled bandpass filter.…”

Section: Introductionmentioning

confidence: 99%

A Novel and Compact Uwb Bandpass Filter Using Microstrip Fork-Form Resonators

Chen¹,

Zhang²

2007

PIER

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Abstract-A novel and compact ultra wideband (UWB) bandpass filter (BPF) with two transmission zeros near both passband edges of lower and higher frequency is proposed by using a new structure of fork-form resonators. The fork-form resonator generates a attenuation pole at the higher passband edge, lower insertion loss, wider bandwidth and compacter dimension, as compared with the traditional parallel unilateral-coupled resonator. A microstrip bandpass filter cascaded by two stages fork-form resonators with a 3-dB fractional bandwidth of 128% (from 1.0 GHz to 4.6 GHz) is designed, fabricated, and tested. The measured characteristics of the filter agree with the theoretical simulations, and the measured results show good specifications which are very low insertion loss 0.5 ± 0.3 dB within the passband and good return loss less than −15 dB from 1.5 GHz to 4.0 GHz, respectively.

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Section: Introductionmentioning

confidence: 99%

A Novel and Compact Uwb Bandpass Filter Using Microstrip Fork-Form Resonators

Chen¹,

Zhang²

2007

PIER

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“…In many microwave circuits, multilayer multi-transmission lines are used as signal propagation tracks in PCB boards [1][2][3][4]. To decrease coupling between the lines, they usually designed in such a way that transmission lines of one layer are orthogonal with transmission lines on the two adjacent layers.…”

Section: Introductionmentioning

confidence: 99%

Full Wave Analysis of Two Layered Orthogonal Microstrip Transmission Lines Based on Spectral Domain Method

Rezaiesarlak¹,

Kashani²,

Mehrshahi³

2008

PIER C

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Abstract-In this paper, using moment method in the spectral domain, full wave analysis of two orthogonal microstrip transmission lines in two layered PCB board is presented. First, using 1-dimensional spectral domain method, the propagation constants and the currents on each line are obtained, without considering of the other line. Then, using Galerkine's method in 2 dimensional spectral domain, the scattering parameters of the structure are calculated. The results of our analysis are compared by the quasi-TEM approach. Comparisons show good agreement between our results and quasi-TEM approach.

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“…Coupling between parallel microstrip lines, which results the main cause of crosstalk, is generally predicted using quasi-static approaches [1][2][3][4][5][6][7][8][9], or full-wave techniques [10][11][12][13]. These techniques have been also employed to analyze the frequency behavior of microstrip discontinuities, such as T-junctions [14], gaps [15][16][17][18][19], bends [20], line crossings [21], and to investigate the field radiated from microstrip discontinuities [22] or interconnecting lines [23].…”

Section: Introductionmentioning

confidence: 99%

An Equivalent Circuit for Emi Prediction in Printed Circuit Boards Featuring a Straight-to-Bent Microstrip Line Coupling

Bernardi¹,

Cicchetti²,

Pelosi³

et al. 2008

PIER B

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Abstract-A full-wave analysis of the scattering parameters of a straight-to-bent microstrip line coupling is performed using a FEM technique. The numerical results, showing the influence played by the geometrical parameters of the structure on the electromagnetic coupling, are then employed to derive an equivalent circuit useful to be employed in CAD tools. A third order polynomial approximant useful to compute the equivalent circuit elements is finally provided.

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Coupled-Mode Analysis of Line Parameters of Coupled Microstrip Lines

Cited by 31 publications

References 10 publications

A Novel and Compact Uwb Bandpass Filter Using Microstrip Fork-Form Resonators

A Novel and Compact Uwb Bandpass Filter Using Microstrip Fork-Form Resonators

Full Wave Analysis of Two Layered Orthogonal Microstrip Transmission Lines Based on Spectral Domain Method

An Equivalent Circuit for Emi Prediction in Printed Circuit Boards Featuring a Straight-to-Bent Microstrip Line Coupling

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