US Patent 7170467 Antenna couplers and method of production

A method of producing an antenna coupler for placement on an antenna under test (AUT) having an aperture. This method includes the steps of constructing a probe from a section of RF hard-line stock having a center conductor and an outer conductor. The outer conductor is removed to expose a portion of the center conductor having a length equal to or less than ¼ wavelength of the AUT. The probe is embedded within a fiberglass shell and has an exposed RF connector for connection to equipment for performing tests on the AUT. The probe is then positioned across the aperture of the Antenna Under Test (AUT).