A New Design of Quasi-Elliptic High-Low Microstrip Lowpass Filter Using SC-Defected Ground Structure Technique

Chetioui, Mohammed; Boudkhil, Abdelhakim; Benabdellah, Nadia; Kafi, A.; Benahmed, Nadia

doi:10.1109/ssd.2018.8570542

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…where L 0 sp is spur length calculated in the previous model using Equation (4) and L d is the difference length to be added to achieve close to the optimum performance. The simulated data set of the optimal L d values is curve fitted to obtain an efficient design function for the proposed model.…”

Section: Proposed Bsf Design Modelmentioning

confidence: 99%

An efficient analytical model for microstrip spurline band‐stop filter design

Agarwal

Sharma

2020

Micro & Optical Tech Letters

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An efficient analytical model to design wideband microstrip spurline band‐stop filter (BSF) is proposed. The geometrical parameters of the BSFs are optimized using simulation for the entire range of the desired operating frequency (1‐5 GHz) and the results indicated relatively inferior performance of the filters designed using conventional analytical model. Whereas, in the proposed model, a mathematical function is found by curve fitting of the optimal data set of geometrical parameters optimized by simulation. Therefore, the filters designed using the proposed model achieve almost optimal performance in terms of rejection ratio, bandwidth, and so on, and a better match between desired and actual operating frequency as compared with the conventional design model. To corroborate the claims, the filter prototypes designed using the proposed and conventional models are fabricated and tested. The measured results showed agreement with the simulation results and proved effectiveness of the proposed analytical model to design spurline BSF. The error limit for the proposed model is found within ±0.005% of the optimal design.

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Section: Proposed Bsf Design Modelmentioning

confidence: 99%

An efficient analytical model for microstrip spurline band‐stop filter design

Agarwal

Sharma

2020

Micro & Optical Tech Letters

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A hairpin DGS resonator for application to microstrip lowpass filters

Chen

2020

Journal of Electrical Engineering

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A hairpin shaped DGS, consisting of two tilted slots with a separation angle, is studied as a unit cell in this contribution. It is further served as a microwave resonator for microstrip lowpass filter applications. Two prototype filters that respectively cascade the same unit cells and the scaled cells with a different scale ratio are analyzed. For demonstration purposes, the two prototype filters are optimally developed, fabricated and examined both from numerical simulations and from experimental validations. Results show the cascaded scaled type demonstrator features a high stopband suppression level within a wide frequency band.

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A New Design of Quasi-Elliptic High-Low Microstrip Lowpass Filter Using SC-Defected Ground Structure Technique

Cited by 2 publications

References 3 publications

An efficient analytical model for microstrip spurline band‐stop filter design

An efficient analytical model for microstrip spurline band‐stop filter design

A hairpin DGS resonator for application to microstrip lowpass filters

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