An Improved Parameters Extraction Method for Dumbbell-Shaped Defected Ground Structure
نویسندگان
چکیده
منابع مشابه
An Improved Parameters Extraction Method for Dumbbell-Shaped Defected Ground Structure
The paper presents an improved equivalent circuit parameters extraction method for the dumbbell-shaped defected ground structure (DGS). The new extraction parameters equations are obtained in closed-form expressions, which contain S11 and S21. The DGS unit with center frequency of 5 GHz is designed and fabricated on a TLX substrate with thickness of 1 mm and dielectric constant of 2.55. The cir...
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The defected ground structure (DGS) is one such technique which were intentionally modified to enhance the performance of the ground plane metal of a microstrip circuit. Importantly, in microwave application, the DGS plays an important role in analyzing the effect of surface and leaky waves. Tthe time of Practical verification, the surface and leaky waves are affected by the propagation errors ...
متن کاملA Comparative Study of Microstrip Bandstop Filters Loaded With Various Dumbbell-Shaped Defected Ground Structure (DGS)
In this paper, a comparative performance of microstrip filters loaded with various dumbbellshaped defected ground structures (DB-DGS) has been studied in terms of their bandstop characteristics. During this course, a new dumbbell shaped DGS having transmetal slit in the connecting slot of the square head in the ground plane has been proposed. This proposed design provides an improved bandstop r...
متن کاملMutual Coupling Reduction Using Dumbbell Defected Ground Structure for Multiband Microstrip Antenna Array
A novel design of multiband microstrip antenna array with dumbbell shape defected ground structure (DGS) is presented. The DGS is inserted into the ground plane between the two elements of the antenna array in order to suppress mutual coupling. Both simulation and measurement results verified that the DGS improved the radiation properties of the antenna array. Measurement results of the DGS ant...
متن کاملAn Overview on Defected Ground Structure
This paper focuses on a tutorial overview of defected ground structure (DGS). The basic conceptions and transmission characteristics of DGS are introduced and the equivalent circuit models of varieties of DGS units are also presented. Finally, the main applications of DGS in microwave technology field are summarized and the evolution trend of DGS is given.
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ژورنال
عنوان ژورنال: Engineering
سال: 2010
ISSN: 1947-3931,1947-394X
DOI: 10.4236/eng.2010.23028