Home » Authors » Hai-wen Liu, Institute of Optics and Electronics; Zhiguo Shi, Zhejiang University; R.H. Knoechel, Kiel University; K.F. Schuenemann, Technische Univer

Hai-wen Liu, Institute of Optics and Electronics; Zhiguo Shi, Zhejiang University; R.H. Knoechel, Kiel University; K.F. Schuenemann, Technische Univer

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Circuit Modeling of Spurline and Its Applications to Microstrip Bandstop Filters

Simple bandstop filters (BSF) are introduced in this article. The filters consist of one spurline and a pair of cross-junction open stubs. This spurline exhibits bandstop characteristics at a resonant frequency, which can be explained and modeled by on...

November 5, 2007

Hai-wen Liu, Institute of Optics and Electronics; Zhiguo Shi, Zhejiang University; R.H. Knoechel, Kiel University; K.F. Schuenemann, Technische Univer

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Bandstop filters (BSF) play an important role in rejecting higher harmonics and spurious responses for microwave and millimeter-wave applications. The conventional method to implement bandstop filters involves the use of shunt stubs or stepped-impedance microstrip lines with large circuit size. 1 To reduce the filter area, certain slow-wave structures,...