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Design of lowpass filters using defected ground structure and compensated microstrip line

Design of lowpass filters using defected ground structure and compensated microstrip line

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A method to design lowpass filters (LPF) using defected ground structure (DGS) and compensated microstrip line is presented. Using the extracted equivalent elements of DGS and capacitive microstrip line, an LPF having no open stub, high impedance line, and tee- or cross-junction element, is designed. Only two DGS patterns and one broad microstrip line comprise the LPF. Simple structure, small size (half of a conventional LPF), less discontinuities, and high power handling capability are obtained through the proposed LPF.

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