A Compact Second-order Chebyshev Bandpass Filter Using U-shaped Resonator and Defected Ground Structure
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Date
2020-06
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Mark
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Společnost pro radioelektronické inženýrství
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Abstract
A compact bandpass filter using U-shaped resonators and Defected Ground Structures is proposed and designed at 5.8 GHz. The U-shaped resonators are placed around an indirectly coupled feed line while the Defected Ground Structures are positioned beneath them. The U-shaped resonator and U-shaped Defected Ground Structure are responsible for the high and low band rejection respectively. The proposed bandpass filter obeys the second order Chebyshev response which has low insertion loss of – 1.87 dB, high rejection level and a sharp roll-off performance. The design is carried out using CST Microwave studio. The design is verified by fabricating and measuring the prototype in the laboratory. A good agreement is observed between the simulated and measured results.
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Citation
Radioengineering. 2020 vol. 29, č. 2, s. 321-327. ISSN 1210-2512
https://www.radioeng.cz/fulltexts/2020/20_02_0321_0327.pdf
https://www.radioeng.cz/fulltexts/2020/20_02_0321_0327.pdf
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Peer-reviewed
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en