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Balun Measurements with a 2-port Vector Network Analyzer

July 14, 2022


Balanced measurements with a vector network analyzer are necessary for a number of applications. High-speed digital transmission lines are often employed on printed circuit boards (PCBs) to transport signals with extremely high bandwidths. It is important to be able to verify insertion loss, characteristic impedance, phase imbalance, and crosstalk to adjacent conductors. Antennas are sometimes fed with balanced lines as well, and verifying the return loss or VSWR of the balanced feed plus antenna combination is useful.

This article was published on the Microwave Journal website, and the remainder of the article can be read there.

See some Copper Mountain Technologies’ VNAs useful to making Balun measurements with a 2-port VNA:

Available Stock

M5090 2-Port 8.5 GHz Analyzer

300 kHz – 8.5 GHz


S5180B 2-Port 18 GHz Analyzer

100 kHz – 18 GHz


S5243 2-Port 44 GHz Analyzer

10 MHz – 44 GHz