Methods, systems, and non-transitory computer readable media for wideband frequency and bandwidth tunable filtering

A wideband frequency and bandwidth tunable filter, comprising:

• a first splitter for receiving a filter input signal and producing a first input signal and a second input signal;
• a first modifier block for modifying the first input signal to produce a first output signal;
• an adjustment circuit for modifying the second input signal to produce a second output signal having an intermediate frequency response;
• a first signal combiner for combining the first output signal and the second output signal to produce a filter output signal;
• and
• a compensation device for adjusting at least one of a phase of the first output signal relative to a phase of the second output signal and an amplitude of the first output signal relative to an amplitude of the second output signal such that the filter output signal has a desired frequency response,
• wherein the adjustment circuit comprises:
• a second splitter for receiving the second input signal and producing a third input signal and a fourth input signal;
• a second modifier block for modifying the third input signal to produce a third output signal;
• a third modifier block for modifying the fourth input signal to produce a fourth output signal;
• and
• a second signal combiner for combining the third output signal and the fourth output signal to produce the second output signal having the intermediate frequency response.