Simulation And Analysis Of Defected Ground Structure (DGS) As A Quarter Wavelength At 2.4 GHZ Band

Lim, Yan Chinn (2011) Simulation And Analysis Of Defected Ground Structure (DGS) As A Quarter Wavelength At 2.4 GHZ Band. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

DGS which is known as defected ground structure has been an increasing interest in studying microstrip lines with various etched defect on ground plane that prohibit wave propagation in certain frequency bands. The proposed DGS unit structure can provide the band gap characteristic in some frequency bands with only one or more unit lattice. By using a simple circuit analysis method, the equivalent circuit parameters are extracted. By employing the extracted parameters and circuit analysis method, the band gap effect for the provided defected ground structure can be explained. The low pass filters can be designed and implemented by using the derived and extracted equivalent circuit and parameter. Lastly, the overall results are an efficient and accurate means to produce the complete equivalent models of DGS circuit for the design of various RF, and microwave circuit which may require the high accurate design procedures.

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