High selectivity seventh-order wideband bandpass filter using coupled lines and open/shorted stubs

Publication Type:
Journal Article
Citation:
Electronics Letters, 2018, 54 (4), pp. 223 - 225
Issue Date:
2018-02-22
Filename Description Size
08301087.pdfPublished Version411.59 kB
Adobe PDF
Full metadata record
© The Institution of Engineering and Technology 2018 A compact seventh-order wideband bandpass filter (BPF) with sharp roll-off skirts using coupled lines and open stubs (OSs)/shorted stubs (SSs) is proposed. Seven transmission poles in the passband and four deep transmission zeros from 0 to 2f0 (f0 denotes centre frequency of the passband) can be realised with the help of half-wavelength OSs and quarter-wavelength SSs. For demonstration, a wideband BPF prototype is designed, fabricated with a measured 3-dB fractional bandwidth of 78% (1.22–2.77 GHz) and transition band roll-off rates of over 175 dB/GHz. Good agreement between the simulations and measurements validates the design method.
Please use this identifier to cite or link to this item: