A highly selective UWB bandpass filter using stepped impedance stubs
Published online by Cambridge University Press: 03 April 2018
Abstract
We present a new ultra-wideband (UWB) band-pass filter (BPF) configuration with a stepped impedance short-circuited stub (SISS)-loaded triple-mode resonator (TMR) and stepped impedance radial stub (SIRS). The novel SISS-loaded TMR and SIRS improve the roll-off ratio at both ends. Even though this UWB BPF is based on a single resonator, the measured results show excellent in-band performance with a small insertion loss less than 0.6 dB and return loss greater than −16 dB. The proposed UWB BPF has sharp roll-off ratio of 96 and 43 dB/GHz, respectively, at the lower and upper edges of the pass-band, and a wide stop-band from 10.8 to 15.6 GHz with the rejection greater than 20 dB.
- Type
- Research Papers
- Information
- International Journal of Microwave and Wireless Technologies , Volume 10 , Issue 3 , April 2018 , pp. 301 - 307
- Copyright
- Copyright © Cambridge University Press and the European Microwave Association 2018
References
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