Low-temperature cofired ceramic (LTCC) ridge waveguide bandpass chip filters

Rong, Yu; Zaki, K.A.; Hageman, M.; Stevens, D.S.; Gipprich, J.

doi:10.1109/22.808977

Cited by 88 publications

(19 citation statements)

References 8 publications

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“…The section of evanescent-mode SIW can provide an inductive coupling [12], and the positive coupling coefficient between two face-to-face CSRRs is reduced rapidly when the length of the evanescent-mode SIW increases. Thus, a proper coupling coefficient can be obtained by adjusting its length between two CSRRs, as shown in Figure 3(a), where the coefficient is extracted by the commercial software, Ansoft HFSS.…”

Section: Internal Couplingsmentioning

confidence: 99%

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Evanescent-Mode Substrate Integrated Waveguide (Siw) Filters Implemented With Complementary Split Ring Resonators

Zhang¹,

Wang²,

He³

et al. 2011

PIER

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Abstract-A new type of evanescent-mode substrate integrated waveguide (SIW) bandpass filter is presented in this paper, with complementary split ring resonators (CSRRs) introduced on the top or bottom metal planes of the waveguide. Both positive and negative couplings are obtained between the CSRRs by changing their locations and orientations. In comparison with conventional SIW filters, the proposed filters are compact since their passbands are below the cutoff frequency of SIW. A third-and a fourth-order cross-coupled filter prototypes were designed using standard PCB technology. They operate at the same central frequency of 3.8 GHz, with their fractional bandwidths of 15% and 20%. The proposed filters have a wide upper stopband as the cutoff frequency of TE 10 -mode in the SIW is much higher than the central frequency. Their good performance is demonstrated by both the simulated and measured S-parameters.

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Section: Internal Couplingsmentioning

confidence: 99%

“…In order to miniaturize the SIW while keeping its advantages, many methods have been proposed recently, such as ridging [12], folding [13], half-mode [14] and dielectric-loading [15], etc.. The evanescentmode technique is also a good choice [16,17].…”

Section: Introductionmentioning

confidence: 99%

Evanescent-Mode Substrate Integrated Waveguide (Siw) Filters Implemented With Complementary Split Ring Resonators

Zhang¹,

Wang²,

He³

et al. 2011

PIER

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“…However, the sensitivity analysis in [20] points out that fabrication tolerances are extremely important when the post height is close to the cavity height, representing a high loading factor. Previous work on evanescent-mode filters inside low temperature cofired ceramic (LTCC) substrates achieved limited size reduction due to the variations in the thickness of each ceramic layer [23], [24]. The uncertainties of the individual layer's tape thickness prevented LTCC from reducing the resonator size further.…”

Section: Filtersmentioning

confidence: 99%

Heterogeneous Wafer-Scale Circuit Architectures

et al. 2007

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“…It consists of a coaxial cavity and several lumped capacitances. This resonator is very different from the evanescentmode resonator which uses rectangular or circular waveguides [1][2][3][4][5][6][7][8]. Utilizing the SIW technology, this novel miniaturized resonator could be realized conveniently in a PCB (Printed Circuit Board) or LTCC (Low Temperature Co-fired ceramic) [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…The literature includes reports on various types of miniaturized techniques, such as evanescentmodes [1][2][3][4][5][6][7][8], dual-modes [9][10][11], SIW (substrate integrated waveguide) [12][13][14], SIR (stepped impedance resonators) [15,16]. Unfortunately, most studies focus on the realization of components at L-band or higher.…”

Section: Introductionmentioning

confidence: 99%

A Multi-Evanescent-Mode Coaxial Cavity Resonator

Zhan¹,

Dong²,

Dong³

et al. 2014

PIER

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Abstract-This paper presents a novel miniaturized multi-evanescent-mode resonator. The resonator is achieved with a coaxial cavity. This coaxial cavity essentially has a direct short connection at one end and is connected with several lumped capacitances at the other end. The key technology of the resonator is the usage of multiple evanescent-modes of TM (transverse magnetic wave) modes. Due to the combined effects of the evanescent mode and multiple modes, the size of the resonator is greatly reduced. In this paper, the theory of resonator is discussed in detail. To verify the correctness of operation, the resonator is used in experimental measurements conducted to realize a third-order bandpass filter based on SIW (substrate-integrated waveguide) technology. The measured results are found to agree with the theoretical values.

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Low-temperature cofired ceramic (LTCC) ridge waveguide bandpass chip filters

Cited by 88 publications

References 8 publications

Evanescent-Mode Substrate Integrated Waveguide (Siw) Filters Implemented With Complementary Split Ring Resonators

Evanescent-Mode Substrate Integrated Waveguide (Siw) Filters Implemented With Complementary Split Ring Resonators

Heterogeneous Wafer-Scale Circuit Architectures

A Multi-Evanescent-Mode Coaxial Cavity Resonator

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