Antenna module for generating self testing signal and electronic device using it

An antenna module comprising:

• at least one transmission chain comprising a first mixer configured to up-convert a transmission signal into a radio frequency band;
• at least one frequency generator configured to generate at least one signal;
• and
• at least one switch configured to receive the at least one signal generated from the at least one frequency generator, and to selectively deliver the at least one signal to the first mixer
• wherein the antenna module comprises a first split/combiner,
• the at least one frequency generator comprises a first input stage configured to receive a reference clock, and a first output stage, and
• the at least one switch comprises,
• a first switch positioned on a path interconnecting the first output stage and the first split/combiner, and
• a second switch positioned on a path interconnecting an input to which the reference clock is input and the first input stage.

An electronic device comprising:

• an antenna element comprising a first feed point;
• at least one transmission chain electrically coupling with the first feed point, and comprising a first mixer configured to up-convert a transmission signal into a radio frequency band, the first mixer comprising a first port, a second port, and a third port;
• at least one frequency generator, comprising circuitry, configured to generate at least one signal, and comprising a first input stage configured to receive a reference clock, and a first output stage and a second output stage configured to output signals of different frequency bands;
• and
• at least one switch comprising a first switch, a second switch, and a third switch, and configured to receive the generated at least one signal from the at least one frequency generator, and to selectively deliver output signal of the first output stage and the output signal of the second output stage to the first port, the second port, and the third port of the first mixer.

An electronic device comprising:

• an antenna element comprising a first feed point;
• at least one transmission chain electrically coupling with the first feed point, and comprising a first mixer configured to up-convert a transmission signal into a radio frequency band;
• at least one frequency generator, comprising circuitry, configured to generate at least one signal;
• at least one switch configured to receive the generated at least one signal from the at least one frequency generator, and to selectively deliver the at least one signal to the first mixer;
• and
• a first split/combiner, wherein
• the at least one frequency generator comprises a first input stage to which a reference clock is input, and a first output stage, and
• the at least one switch comprises:
• a first switch positioned on a path interconnecting the first output stage and the first split/combiner, and
• a second switch positioned on a path interconnecting an input to which the reference clock is input and the first input stage.

A test apparatus, comprising

• an antenna element comprising a first feed point;
• an antenna module including an antenna electrically coupling with the first feed point;
• a board configured to generate a control signal to control the antenna module, and to supply the control signal and a reference clock to the antenna module;
• a process personal computer (PC) configured to communicate with the board;
• and
• a power supply configured to supply power to the antenna module,
• wherein the antenna module comprises,
• at least one transmission chain comprising a first mixer configured to up-convert a transmission signal into a radio frequency band, the first mixer comprising a first port, a second port, and a third port;
• at least one frequency generator, comprising circuitry, configured to generate at least one signal, and comprising a first input stage configured to receive the reference clock, and a first output stage and a second output stage configured to output signals of different frequency bands;
• and
• at least one switch comprising a first switch, a second switch, and a third switch, and configured to receive the generated at least one signal from the at least one frequency generator, and to selectively deliver the output signal of the first output stage and the output signal of the second output stage to the first port, the second port, and the third port of the first mixer.