Wideband Impedance Control
The MT2000 is the best commercially-proven solution capable of wideband impedance control of up to 500 MHz bandwidth at the fundamental, harmonic and baseband frequencies and is ideal for:
- Using ACPR and EVM measurement data in the design of wideband PA circuits
- Improving PA linearity based on controlled baseband terminations
- Evaluating the performance of a DUT under realistic antenna load conditions
- Evaluating the performance of DUT under different matching network topologies
The MT2000's wideband impedance control capabilities include:
- Library of standard commercially available modulated signals
- Utility to define custom modulated signals
- Automatic signal pre-distortion to create a clean modulated signal at the DUT reference plane
- Wideband impedance control as follows:
- Ability to set all impedance over the modulated bandwidth at a single impedance point (i.e. all frequency components of an 80 MHz 5G signal should be tuned to 5Ω)
- Ability to set user-defined phase delay of impedance vs frequency over the modulated bandwidth (i.e. a 0.1 degree/MHz phase delay resulting in an overall phase shift of 8 degrees on the Smith Chart for an 80 MHz 5G signal)
- Ability to load S1P file (user-created, from circuit simulator…) defining impedance vs frequency over the modulated bandwidth. Ideal for evaluating realistic matching network designs (i.e. stub vs transmission line) and evaluating DUT performance under realistic antenna load response
- Vector signal analysis of modulated signals
- Adaptive averaging enhances measurement speed without sacrificing accuracy
- Import and export I and Q baseband waveforms for offline digital pre-distortion load pull (DPD)
- Standard measurement parameters include ACPR, EVM, spectral mask; custom parameters

Fundamental-frequency modulated load pull of 20 impedance states and power sweep at
26 power levels, where all impedances over the modulated bandwidth of 200 MHz are set to a single impedance state.