07.27.23 -- Automating RF Test And Measurement

Because 5G base station locations are often exposed to extreme outdoor temperatures, test systems have been developed to help component manufacturers ensure intended quality and performance. Two test methods capture the two ends of the reliability characterization graph known as the “bathtub curve."

Power measurement is accomplished by using a high-power calibrated coupler or attenuator, which gets attached to the amplifier RF output connector. Harmonics are recorded similarly by increasing the input drive from the signal source. 

Mismatch loads can be used to test amplifiers and help characterize their performance under conditions that might occur in the field. To do so, a mismatch load (or mismatch termination) is used to present a specified VSWR, rather than the usual 1:1 perfect 50-ohm load.

As more products use electronics and wireless, a bilogical antenna is the best first investment for internal RF testing.

Most measurement errors are the result of a poor setup, from using the incorrect detector type for the signal of interest to failing to make allowances for gating and various forms of modulation.

Electronic devices power our world and allow us to communicate. In all applications requiring signal integrity and accurate power amplification, blocking capacitors are used to provide clean waveforms and correctly amplified voltages.

Creating mobile devices with multiple antennas involves a challenging balancing act. If you consider all the elements a mobile device designer has to contend with, it’s a lot.