Method and apparatus for socket power calibration with flexible printed circuit board

A method of performing socket power calibration, said method comprising:

• transmitting an electrical signal from a plurality of socket ports on a load board to a plurality of traces on a first end of a flexible printed circuit board, wherein the plurality of traces are configured to allow traversal of an electrical signal from the first end to a second end of the flexible printed circuit board;
• radiating the electrical signal from a plurality of patch antennas on the second end of the flexible printed circuit board into a waveguide;
• and
• measuring a power of the electrical signal using a power sensor, wherein the power sensor is electrically coupled to the waveguide, and wherein the waveguide is configured to communicate the electrical signal from the patch antennas to the power sensor.

A structure for performing socket power calibration, said structure comprising:

• a plurality of device under test (DUT) input/output (I/O) pins disposed on a load board electrically coupled to a plurality of traces on a first end of a flexible printed circuit board, wherein the plurality of traces are configured to allow traversal of an electrical signal from the plurality of socket ports to a waveguide;
• the plurality of traces terminating on a second end of the flexible printed circuit board into a plurality of patch antennas, wherein the plurality of patch antennas is adapted to radiate the electrical signal into a cavity of a waveguide adapter, wherein the waveguide comprises the waveguide adapter and a differential backshort microstrip transition block;
• and
• a power sensor electrically coupled to the waveguide, wherein the waveguide is configured to communicate the electrical signal from the patch antennas to the power sensor.

A method of performing socket power calibration, said method comprising:

• transmitting an electrical signal from a calibrated power source to a first end of a waveguide;
• receiving the electrical signal using patch antennas at a second end of the waveguide, wherein the patch antennas are coupled to a first end of a flexible printed circuit board;
• conveying the electrical signal to a plurality of socket ports on a load board connected to a second end of the flexible printed circuit board, wherein a plurality of traces are configured to allow traversal of an electrical signal from the first end to the second end of the flexible printed circuit board;
• and
• measuring a power of the electrical signal at the plurality of socket ports using ATE equipment.