Filter and amplification circuit for outputting ultra-wide band (UWB) radio frequency (RF) signals with a high spurious-free dynamic range, test system and methods

A test system comprising:

• a radio frequency signal generator generating and outputting a radio frequency signal, wherein the radio frequency signal comprises:
• a carrier signal at a specific frequency and multiple spurious signals at different frequencies with each spurious signal having an initial corresponding negative power ratio relative to the carrier signal;
• and
• a filter and amplification circuit receiving the radio frequency signal from the radio frequency signal generator, filtering the radio frequency signal, and outputting a filtered radio frequency signal to a device under test,
• wherein the filtered radio frequency signal comprises:
• an amplified and filtered carrier signal at the specific frequency and multiple filtered spurious signals at the different frequencies with each filtered spurious signal having a higher corresponding negative power ratio relative the carrier signal as compared to the initial corresponding negative power ratio, and
• wherein the filter and amplification circuit comprises:
• a first switch with a single first input and multiple first outputs, wherein the single first input receives the radio frequency signal;
• a second switch with multiple second inputs and a single second output, wherein the single second output outputs the filtered radio frequency signal;
• and
• multiple different signal paths electrically connecting the multiple first outputs to the multiple second inputs, respectively,
• wherein each signal path comprises an amplifier and a band pass filter connected in series between a corresponding first output of the first switch and a corresponding second input of the second switch, and
• wherein the different signal paths comprise different band pass filters that pass radio frequency signals within different bands, respectively.