Miniaturized microwave bandpass filter based on modified hairpin topology

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dc.contributor.authorSrisathit, K.
dc.contributor.authorTangjit, J.
dc.contributor.authorSurakampontorn, W.
dc.date.accessioned2026-08-06T10:01:10Z
dc.date.available2026-08-06T10:01:10Z
dc.date.issued2010-12-01
dc.description.abstractThis paper presents a microstrip hairpin bandpass filter (BPF) with simultaneously compact size and harmonic suppression. With the use of a square groove technique, the phase velocities between even- and odd-mode in parallel-coupled line segment are compensated. Two prototype filters based on the conventional hairpin and the proposed hairpin BPF are designed at the center frequency of 2.45 GHz with a fractional bandwidth of 20 percentages and fabricated on the microstrip structure. The proposed BPF exhibits the measured insertion loss of 1.2 dB at the centered frequency of 2.49 GHz, whereas the in-band return loss is kept below 12 dB from 2.21 to 2.7 GHz. Good agreements between the simulation and measurement can be obtained. © 2010 IEEE.
dc.identifier.citation2010 IEEE International Conference of Electron Devices and Solid State Circuits Edssc 2010, 2010
dc.identifier.doi10.1109/EDSSC.2010.5713723
dc.identifier.other2-s2.0-79952498294
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/3318
dc.source2010 IEEE International Conference of Electron Devices and Solid State Circuits Edssc 2010
dc.subjectCompact size
dc.subjectGroove
dc.subjectHairpin filter
dc.subjectHarmonic suppression
dc.subjectPhase velocity
dc.titleMiniaturized microwave bandpass filter based on modified hairpin topology
dc.typeConference Paper

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