Meandered Microstrip Open Circuited Stub with Bandstop Characteristic

This paper presents a microstrip meandered open circuited stub with bandstop characteristic. The proposed structure is designed on a high frequency laminate with dielectric constant of 4.0 and board thickness of 0.508 millimeters. The scattering parameters and electromagnetic field distributions at various frequencies are investigated by modeling the structure with three dimensional electromagnetic simulation tool. In order to describe the resonant and bandstop characteristic of the meandered open circuited stub, a Smith chart as well as electric field at various frequencies and phases is illustrated accordingly. The structure can be an alternative method in suppressing the harmonic response of a bandpass filter.

Authors:

• Goh Chin Hock
• Chandan Kumar Chakrabarty
• Mohammad Hadi Badjian
• Sanjay Devkumar

Keywords:

• Bandstop
• Equivalent Lumped Element Model
• Electromagnetic Model
• Meandered Open Circuited Stub

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