A compact hairpin filter with stepped hairpin defected ground structure
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CitationSajjad, H., Altaf, A., Khan, S. ve Jan, L. (2018). A compact hairpin filter with stepped hairpin defected ground structure. 21st IEEE International Multi-Topic Conference (INMIC). Karachi, Pakistan, 1-2 November 2018. https://dx.doi.org/10.1109/INMIC.2018.8595634
A compact hairpin line bandpass filter is presented with two different defected ground structures (DGS). The DGS are used to reduce the distributive response of the microstrip filter. The harmonic at 2 fo is suppressed to below -20 dB. The filter has an insertion loss (IL) greater than -3 dB and return loss (RL) of 26 dB at the center frequency, 2.4 GHz. The designed filter has a sharp roll-off and a wide band of operation. The filter is fabricated using RO4350 substrate and measured results are compared with the simulations.