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US 10,591,530 B1Granted
Coplanar load pull test fixture for wave measurements
OwnerChristos Tsironisinventor
Life of this patent
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Abstract
Coplanar waveguide microwave transistor test fixtures include integrated wideband signal sensors/couplers and allow the detection of the main signal and its harmonic components, generated by a transistor in high power operation mode, by using a phase-calibrated network or signal analyzer and thus the reproduction of real time signal waveforms.
Claims6
A coplanar waveguide (CPW) test fixture for RF (radio frequency) transistors (device under test, DUT) comprises
- at least one input test port and at least one output test port,
- at least one main transmission line connecting the input test port with an input terminal of the DUT, and
- at least one main transmission line connecting an output terminal of the DUT with the output test port, and
- at least one directional signal coupler,
- wherein
- the at least one directional signal coupler is integrated in the test fixture and placed close to the DUT, between a test port and the associated DUT terminal, and is electro-magnetically coupled to the main transmission line, in a non-contacting relationship,
- and wherein
- the at least one directional signal coupler samples a portion of a transmitted signal and can be operationally connected with a signal analyzer to measure the portion of the transmitted signal.
5 more elements
Dependencies are inferred from the claim text.