Wu, "A tunable bandpass filter with
constant absolute bandwidth," Journal of Electromagnetic Waves and Applications, Vol.
Rebeiz, "Corrugated microstrip coupled lines for
constant absolute bandwidth tunable filters," IEEE Transactions on Microwave Theory and Techniques, vol.
From the analysis above, we can achieve a configurable BPF Filter with a predefined constant fractional-bandwidth first passband and a controllable second passband with
constant absolute bandwidth. The simulation results are shown in Figure 5.
FFT with
constant absolute bandwidth, which is synchronised with a reference signal from the rotor to view an order spectrum and it can easily distinguish between rotor related and non-rotor related problems.
Shi, "A tunable bandpass filter with
constant absolute bandwidth based on one ring resonator," Journal of Electromagnetic Waves and Applications, Vol.