Patent ID: 11863148
Assignee: nan
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. An active load pull tuner, having a test port, comprises:
a base band low frequency section, and
a high frequency section, linked with the base band section using an up- and a down-conversion module, both said modules being driven by a common local oscillator, and
a digital electronic tuning module, residing in the high frequency section, and inserted between the up- and down-conversion modules;
wherein
a coupling module, comprising a power combiner/divider, links a port of a DUT with the active load pull tuner by collecting base band frequency signal from the port of the DUT, injecting it into the up-conversion module, receiving it from the down-conversion module amplified using an amplifier, and re-injecting it into the port of the DUT.