Design of reconfigurable defected ground structure (DGS) for UWB application

This paper presents the design of reconfigurable defected ground structure (DGS) resonator that can be integrated with ultrawide-band (UWB) microwave filter to produce bandpass and bandstop response simultaneously. The reconfigurable DGS is designed based upon coplanar waveguide (CPW) technology to...

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Bibliographic Details
Main Authors: Zakaria, Z., Shairi, N. A., Sulaiman, R., Sam, W. Y.
Format: Conference Proceeding
Language:English
Subjects:
Coplanar Waveguide (CPW)
Coplanar waveguides
Defected Ground Structure (DGS)
Electromagnetic waveguides
Filtering theory
Microwave filters
Microwave photonics
Periodic structures
PIN photodiodes
Ultra-wideband (UWB)
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Summary:This paper presents the design of reconfigurable defected ground structure (DGS) resonator that can be integrated with ultrawide-band (UWB) microwave filter to produce bandpass and bandstop response simultaneously. The reconfigurable DGS is designed based upon coplanar waveguide (CPW) technology to exhibit bandstop characteristic at 3.5 GHz and 5.5 GHz using FR-4 on a 1.6 mm dielectric substrate thick with dielectric constant ε r = 4.6. The simulation performance shows promising results that could be further validated during the experimental works. This topology of reconfigurable DGS is useful for applications when the undesired signals need to be removed such as in wideband systems.
DOI:10.1109/APACE.2012.6457659