Abstract: The self-keying waveguide interconnection system for repeatable waveguide calibration and connection comprises a plug with a centrally disposed aperture, a jack provided with a counterbore to accept a plug diameter. The jack includes a plurality of self-keying channels. A shim having a shape complementary to the plurality of self keying thru slots has a plurality of self keying thru slots for aligning the centrally disposed aperture of the plug to the centrally disposed aperture of the jack. The system identifies the orientation and flange face polarity of the line or adapter without the use of alignment pins as two or more of these independent waveguide interfaces are coupled. In use, the device functions as a self-keying shim/spacer/adapter for a calibration kit or adapter in waveguide sections.

Abstract: The self-keying waveguide interconnection system for repeatable waveguide calibration and connection comprises a plug with a centrally disposed aperture, a jack provided with a counterbore to accept a plug diameter. The jack includes a plurality of self-keying channels. A shim having a shape complementary to the plurality of self keying thru slots has a plurality of self keying thru slots for aligning the centrally disposed aperture of the plug to the centrally disposed aperture of the jack. The system identifies the orientation and flange face polarity of the line or adapter without the use of alignment pins as two or more of these independent waveguide interfaces are coupled. In use, the device functions as a self-keying shim/spacer/adapter for a calibration kit or adapter in waveguide sections.

Abstract: A method for taking measurements using a vector network analyzer (VNA) enables a reduction in interference created when the VNA is operated in the presence of external signals. For the method, three measurements are taken, one at a desired measurement frequency, another at a frequency slightly less than the desired measurement frequency, and another at a slightly greater frequency than the desired measurement frequency. An interfering signal may occur at or near the frequency of one of the three measurements. To eliminate measurement error from the interfering signal, the measurement signal with the median, or middle, magnitude is selected to provide the measurement results.