Multilayer suspended stripline and coplanar line filters

Schwab, W.; Boegelsack, Frank; Menzel, Wolfgang

doi:10.1109/22.299736

Cited by 60 publications

(27 citation statements)

References 19 publications

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“…The SSL technology provides strong broadside coupling between transmission lines on the opposite sides of the substrate [7], [8]. By overlapping a section of the original input and output lines of the low-pass filter with new input and output lines on the other side of the substrate, capacitive highpass sections [12] are formed to shape the lower filter edge.…”

Section: Filter Designmentioning

confidence: 99%

A Simple Ultra-Wideband Suspended Stripline Bandpass Filter With Very Wide Stop-Band

Balalem

Menzel

Macháč

et al. 2008

IEEE Microw. Wireless Compon. Lett.

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Abstract-This letter introduces a simple ultra-wideband suspended stripline filter with a pass-band from 3.1 to 10.6 GHz and a very wide stop-band up to more than 25 GHz. The filter is realized by capactive coupling of a quasi-lumped low-pass filter to the I/O ports. Insertion loss in the pass-band is better than 0.5 dB. The filter has a length of 13.8 mm. Excellent agreement is achieved between measured and simulated results.Index Terms-Bandpass filter (BPF), suspended stripline filter, ultra-wideband (UWB) filter.

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Section: Filter Designmentioning

confidence: 99%

A Simple Ultra-Wideband Suspended Stripline Bandpass Filter With Very Wide Stop-Band

Balalem

Menzel

Macháč

et al. 2008

IEEE Microw. Wireless Compon. Lett.

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“…Similar to SSS structure, a filter with a coaxial tube housing the suspended resonators was reported in [7]. Menzel et al [8][9][10][11] used a quasi-lumped approach to design some SSS filters and diplexers. In their works, coupled SSS resonators of various shapes were adopted in filter design.…”

Section: Introductionmentioning

confidence: 99%

Suspended Substrate Stripline Bandpass Filters With Source-Load Coupling Structure Using Lumped and Full-Wave Mixed Approach

Ho¹,

Chen²

2012

PIER

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Abstract-This paper presents the design of two suspended substrate stripline (SSS) bandpass filters (BPFs), both with a source-load coupling structure embedded to create a transmission zero (TZ) near each side of the passband edges. For the first BPF, the physical circuit layout is proposed first and followed by the establishment of an equivalent LC circuit. The optimization of element values of the LC circuit using a circuit-level simulator leads to quick adjustment of the structural parameters of the physical circuit layout with the aid of a full-wave simulator. For the second BPF, the ingenious equivalent LC circuit modified from that of the first one is proposed for bandwidth enhancement, which is achieved by exciting two extra loaded resonances in the passband. With the element values of the LC circuit optimized, proper reshaping the physical circuit layout from that of the first BPF is easily accomplished. The presented lumped and full-wave mixed approach is very efficient in that the circuitlevel simulator is used to the largest extent and the time-consuming full-wave simulator is employed only at the later stage of the design. Experiments are conducted to verify the design of the two SSS BPFs and agreements are observed between the measured and simulated data.

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“…The MCL was introduced as a good candidate for filter applications in [2], since it offers a wider range for a nearly constant characteristic impedance and provides more effective capacitive coupling between the resonators by locating them on the two sides of the substrate [2], [4]. Some MCL coupling structures for filters have been proposed in [3].…”

Section: Introductionmentioning

confidence: 99%

Bandpass Filters on a Modified Multilayer Coplanar Line

Balalem

Hamad

Macháč

et al. 2006

2006 IEEE MTT-S International Microwave Symposium Digest

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-The design of compact multilayer coplanar line bandpass filters is presented. These very compact filters make use of the two sides of the substrate of the modified coplanar line. In addition, a transmission zero has been introduced to the filter response, either by extending the metalization under the ground planes, or by employing additional capacitive coupling between the different parts of the filter structure. A good agreement between the simulated and measured responses has been achieved.

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Multilayer suspended stripline and coplanar line filters

Cited by 60 publications

References 19 publications

A Simple Ultra-Wideband Suspended Stripline Bandpass Filter With Very Wide Stop-Band

A Simple Ultra-Wideband Suspended Stripline Bandpass Filter With Very Wide Stop-Band

Suspended Substrate Stripline Bandpass Filters With Source-Load Coupling Structure Using Lumped and Full-Wave Mixed Approach

Bandpass Filters on a Modified Multilayer Coplanar Line

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