LTCC wide-band ridge-waveguide bandpass filters

Rong, Yu; Abotalib, Abotalib Z.; Gipprich, J.; Hageman, M.; Stevens, D.S.

doi:10.1109/22.788520

Cited by 41 publications

(13 citation statements)

References 8 publications

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“…Therefore, for a broader bandwidth filter, a relative bigger cross section will be required because strong couplings are needed. However, the cross section is always smaller than the classic ridge waveguide evanescent-mode filters [1][2][3] because all the modes of the ridge waveguides in this proposed filter configuration are evanescent modes. Typically, the filter cross section is about half size of the ridge waveguide evanescentmode filter for a 20% bandwidth filter.…”

Section: A Filter Configurationmentioning

confidence: 95%

“…Each discontinuity can be represented by the generalized scattering matrix (GSM) after the matching. The complete filter response is then obtained by cascading the generalized scattering matrix (GSM) of each discontinuity together [1,2]. It is important to note that the filter has symmetry with respect to the middle plane along the overall length.…”

Section: B Filter Modeling By MMMmentioning

confidence: 99%

“…They are manufactured as multiple layer structures to have high integration level. LTCC ridge waveguide filter and multiplexer designs are presented in [1][2][3]. The drawback of LTCC ridge waveguide filters is their relatively-large cross sections, especially their heights.…”

Section: Introductionmentioning

confidence: 99%

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Inline and canonical stripline filters with ridge coupling sections for LTCC applications

Zhang

Ruiz‐Cruz

Zaki

2008

Int J RF and Microwave Comp Aid Eng

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Inline and canonical filters employing stripline resonators coupled by evanescent-mode ridge waveguide sections are presented. The proposed configurations are suitable choices for broadband chip filters integrated in printed circuit boards, especially for those with constraints on size and loss. Low temperature co-fired ceramic (LTCC) technology can be used to manufacture such filters. To validate the idea, prototypes of Chebyshev and elliptic function filters are designed following a systematic procedure. Stepped impedance stripline resonators are used in the Chebyshev filter to improve the spurious response. A novel canonical structure is presented for achieving high selectivity elliptic function filter responses. Rigorous mode matching method is applied to analyze and optimize all the filters, whose results are validated by commercial software.

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Section: A Filter Configurationmentioning

confidence: 95%

Section: B Filter Modeling By MMMmentioning

confidence: 99%

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Inline and canonical stripline filters with ridge coupling sections for LTCC applications

Zhang

Ruiz‐Cruz

Zaki

2008

Int J RF and Microwave Comp Aid Eng

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“…Fig. 1(a) [5] shows the configuration of a typical ridge waveguide filter using single ridge waveguide resonators. The coupling between each two resonators is achieved through a section of evanescent mode rectangular waveguide, operating below the cutoff frequency of the dominant mode of the single ridge waveguide.…”

Section: Introductionmentioning

confidence: 99%

“…Ridge waveguide filters also have low loss, high spurious performance and compact size. The design of ridge waveguide filters suitable for multilayers applications can be found in [3][4][5]. Fig.…”

Section: Introductionmentioning

confidence: 99%

Stripline Transition to Ridge Waveguide Bandpass Filters

Sabbagh¹,

Hsu²,

Zaki³

et al. 2003

PIER

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Abstract-Full wave optimization is implemented to design a wide band transition from shielded stripline to ridge waveguide. A bandpass ridge waveguide filter, with input/output realized through tapped-in stripline is designed. Using rigorous mode matching technique the generalized scattering matrices of all the building blocks are obtained. Design procedure is described and examples are given to demonstrate the features of the tapped-in coupling structure. The tapped-in structure results in a considerable reduction of the filter's total length compared to the use of two transitions.

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CAD of evanescent-mode bandpass filters based on the short ridged waveguide sections

Kirilenko

Rud

Тkachenko

2001

Int J RF and Microwave Comp Aid Eng

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The paper presents the internal details of a developed full-wave algorithm for the computer-aided design of evanescent-mode bandpass filters formed by single-or doubleshort ridged waveguide sections. New filter configurations with an enlarged cross section of filter housing and nonconventional notch-strip-notch elements providing improved stopband performance are given special considerations. Additional input-output transformers built on rectangular waveguide sections are used in designing broadband filters. Characteristics of one of the designed filters are verified by measured data.

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LTCC wide-band ridge-waveguide bandpass filters

Cited by 41 publications

References 8 publications

Inline and canonical stripline filters with ridge coupling sections for LTCC applications

Inline and canonical stripline filters with ridge coupling sections for LTCC applications

Stripline Transition to Ridge Waveguide Bandpass Filters

CAD of evanescent-mode bandpass filters based on the short ridged waveguide sections

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