Testing circuit with directional coupler
AssigneeSkyworks Solutions, Inc.
InventorZelman Hernandez
Life of this patent
Estimating the term…
Abstract
Testing circuit with directional coupler. A testing circuit can include a testing circuit input configured to receive an output signal from a module, the output signal having a fundamental component and a harmonic component. The testing circuit can further include a testing circuit fundamental output configured to output the fundamental component and a testing circuit harmonic output configured to output the harmonic component. The testing circuit can include a first directional coupler having a first coupler input coupled to the testing circuit input, a first transmitted output coupled to the testing circuit fundamental output, and a first coupled output coupled to the testing circuit harmonic output.
Claims20
A testing circuit comprising:
- a testing circuit input configured to receive an output signal from a module, the output signal having a fundamental component and a harmonic component;
- a testing circuit fundamental output configured to output the fundamental component;
- a testing circuit harmonic output configured to output the harmonic component;
- an insertion loss output configured to output an insertion loss output signal in response to an insertion loss input applied to the testing circuit fundamental output;
- and
- a first directional coupler having a first coupler input coupled to the testing circuit input, a first transmitted output coupled to the testing circuit fundamental output, and a first coupled output coupled to the testing circuit harmonic output.
A testing unit comprising:
- a printed circuit board;
- a testing circuit implemented on the printed circuit board, the testing circuit including a testing circuit input configured to receive an output signal from a radio-frequency (RF) module, the output signal having a fundamental component and a harmonic component, a testing circuit fundamental output configured to output the fundamental component, a testing circuit harmonic output configured to output the harmonic component, an insertion loss output configured to output an insertion loss output signal in response to an insertion loss input applied to the testing circuit fundamental output, and a first directional coupler having a first coupler input coupled to the testing circuit input, a first transmitted output coupled to the testing circuit fundamental output, and a first coupled output coupled to the testing circuit harmonic output.
A method of testing a radio-frequency (RF) module, the method comprising:
- coupling the RF module to a testing unit;
- applying a transmission test input signal to an input of the testing unit;
- receiving a transmission test fundamental output signal at a first output of the testing unit;
- receiving a transmission test harmonic output signal from a second output of the testing unit via a directional coupler of the testing unit;
- applying a reception test input signal to the first output of the testing unit;
- and
- receiving a reception test output signal from an insertion loss output of the testing unit.
Dependencies are inferred from the claim text.