Optimization of a novel substrate integrated waveguide high-pass filter using space mapping

Xu, Juan; Li, Zhaolong; Chen, Rushan

doi:10.1002/mop.28945

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…4a. To justify the claimed advantages of the proposed filter, a hybrid filter [6] with the same cutoff frequency was fabricated using a section of SIW in cascade with a microstrip band-stop filter, as shown in Fig. 4b.…”

Section: Fig 1 Geometry Of Proposed Highpass Filtermentioning

confidence: 99%

Substrate integrated waveguide highpass filter with high selectivity

et al. 2015

Electron. lett.

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A novel substrate integrated waveguide (SIW) highpass filter with sharp attenuation characteristics using shunt SIW resonant stubs is proposed. The highpass filter consists of a main SIW transmission line loaded with three shunt SIW resonant stubs. The three shunt SIW resonant stubs are used to realise the band-stop filter, whose stopband is designed to coincide with the transition band of the SIW highpass filter. Therefore, the sharp attenuation of the stopband filter contributes to the attenuation of the entire filter. To verify the concept, a filter prototype with a cutoff frequency of 16 GHz is designed, fabricated and measured. Another hybrid filter with the same specifications is fabricated and compared. The measured results show that the proposed filter has sharper attenuation characteristics than the hybrid filter.

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Section: Fig 1 Geometry Of Proposed Highpass Filtermentioning

confidence: 99%

Substrate integrated waveguide highpass filter with high selectivity

et al. 2015

Electron. lett.

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“…There are numerous space mapping methods used for optimization and modeling . However, using analytical formulas as coarse models such as Cauchy approximation show a limited range of variables.…”

Section: Introductionmentioning

confidence: 99%

An enhanced fraction polynomial microwave filter modeling method exploiting space mapping

Guo

Xia

Deng

et al. 2016

Micro & Optical Tech Letters

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switches. It leads to the asymmetric distribution of up-state capacitances and down-state resistances throughout the signal line with identical actuation voltage. The proposed switch demonstrates excellent microwave performances over a compact area. Switch is also compared with the present state-of-the-art of the SPDT switches and reported in Ref. 8. CONCLUSIONWe have proposed and implemented the functionalities of DC contact MEMS SPST switch behavior with different levels of characterizations. A systematic extensive measurement process has been followed to ensure the optimum switch performance. The isolation performance of the DC contact MEMS switch is improved up to 30 dB with series shunt configurations compared to a single SPST switch. Finally, a SPDT switch has been developed with 40 dB of isolation up to 20 GHz frequency within a smallest possible area of 1.25 mm 2 . In future, the authors intend to do experimental justifications of the reported SPDT switch within a 0-level or thin film packaging. ACKNOWLEDGMENTThe authors express their profound gratitude to National Program on Micro and Smart Systems for setting up MEMS design lab and RF characterization facilities at CARE, Indian Institute of Technology, Delhi, India. ABSTRACT: A method for bandpass filter modeling taking advantage of the space mapping (SM) is presented in this letter. The coarse model is constructed by the fraction polynomial approximating the data from high-fidelity simulations, and the approach of obtaining the coefficients is specifically designed to avoid rapidly increasing complexity as the data adds. The surrogate model, which the accuracy is further enhanced, is established utilizing SM. In this work, the SM process allows a flexible tradeoff between accuracy and computational cost. The proposed model can be operated with a relatively wide variation of design Figure 6 Measured change in

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A compact LTCC semi‐lumped highpass filter with vialess structure

Qian

Tian

2020

Micro & Optical Tech Letters

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A new type of semi‐lumped highpass filter (HPF) based on multilayer technology is presented in this letter. Capacitive coupled stripline stubs are utilized as semi‐lumped resonators in the structure without using any means. Hence, undesired parasitic effect in the multilayer interconnections is minimized while high quality factor and stopband rejection are realized simultaneously. In this research, a HPF works from 5.15 to 5.95 GHz has been designed and fabricated on a low temperature cofired ceramic (LTCC) substrate. The proposed topology has been validated through a series of tests. By virtue of the LTCC multilayer technology, the proposed HPF is compact, occupying only a volume of 2.5 mm × 2.0 mm × 1.0 mm.

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Optimization of a novel substrate integrated waveguide high-pass filter using space mapping

Cited by 5 publications

References 8 publications

Substrate integrated waveguide highpass filter with high selectivity

Substrate integrated waveguide highpass filter with high selectivity

An enhanced fraction polynomial microwave filter modeling method exploiting space mapping

A compact LTCC semi‐lumped highpass filter with vialess structure

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