Design and Improvement of a Compact Bandpass Filter using DGS Technique for WLAN and WiMAX Applications

[...]great effort has gone into the compactness of devices. [...]the DGS adds an extra degree of freedom in microwave circuit design and opens the door to a wide range of application. The parallel capacitance, Cp, between the resonator and the metallic plane is formed by the influence of the fringin...

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Bibliographic Details
Published in:Telkomnika 2017-09, Vol.15 (3), p.1137-1144
Main Authors: Boutejdar, Ahmed, Amzi, Mohamed, Bennani, Saad Dosse
Format: Article
Language:English
Subjects:
Bandpass filters
Circuits
Design
Local area networks
Wireless networks
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Summary:[...]great effort has gone into the compactness of devices. [...]the DGS adds an extra degree of freedom in microwave circuit design and opens the door to a wide range of application. The parallel capacitance, Cp, between the resonator and the metallic plane is formed by the influence of the fringing field between the resonator and the ground plane. 3.Characteristics of The Quasi-Yagi-DGS Typically, DGS units are used to design and improve filters [2], patch antennas [3-4], branch line couplers, power dividers, and power amplifiers [5]. Figure 5 shows the equivalent-circuit model of the Quasi-Yagi-DGS unit, the circuit parameters are extracted from an electromagnetic simulation by matching to a one pole Butterworth band stop filter response, as such in reference [27, 32], using a simple relation chips and the optimization's method (14) and (15), where Cs represents the sum of the capacitances in the ground plane and is the parallel inductance to .
ISSN:1693-6930
2302-9293
DOI:10.12928/telkomnika.v15i3.6917