Design of High Performance Microstrip Dual-Band Bandpass Filter
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This paper presents a new design of dual-band bandpass filters using coupled stepped-impedance resonators for wireless systems. This architecture uses multiple couple stubs to tune the passband frequencies and the filter characteristics are improved using defected ground structure (DGS) technique. Measurement results show insertion losses of 0.93 dB and 1.13 dB for the central frequencies of 2.35 GHz and 3.61 GHz, respectively. This filter is designed, fabricated and measured and the results of the simulation and measurement are in good agreement.
KeywordsDual-band bandpass filters, stepped-impedance resonators, defected ground structure, DGS, insertion loss
Document typePeer reviewed
Document versionFinal PDF
SourceRadioengineering. 2015 vol. 24, č. 1, s. 32-37. ISSN 1210-2512
- 2015/1