Optimization of arbitrary frequency response of microwave bandstop filter

Schmiedel, H.

doi:10.1109/miame.1999.827823

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“…There are many methods to achieve an elliptic or quasi-elliptic bandstop filter design [3][4][5]. Here, a simple and practical approach in designing a quasi-elliptic bandstop filter is proposed.…”

Section: Introductionmentioning

confidence: 99%

Quasi-Elliptic Microstrip Bandstop Filter Using Tap Coupled Open-Loop Resonators

Yeo¹,

Vijaykumar²

2013

PIER C

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In this paper, we will present a quasi-elliptic bandstop filter using asynchronously tuned resonators. To demonstrate this technique, a novel broadband microstrip bandstop filter is also proposed using distributed resonators. To achieve wide bandwidth using distributed resonators, strong couplings are required. This is achieved using tap coupled to avoid very narrow gaps which are costly to manufacture. The filter exhibits a factional bandwidth of approximately 35%. A simple practical transformation technique for transforming Chebyshev bandstop filter to asynchronously tuned quasi-elliptic bandstop filter will be presented.

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Section: Introductionmentioning

confidence: 99%