Design of TEM Transmission Line for Probe Calibration up to 40 GHz


With the ongoing development of 5G wireless communication, frequencies as high as 40 GHz have become relevant for EMI near-field scanning. This paper describes the development process of two transmission lines with air dielectrics for probe calibration, namely a rod over ground plane and an air trace. Because of homogeneous dielectrics the transmission lines become almost pure TEM, which is preferable regarding probe calibration to a coplanar waveguide (quasi- TEM). The design process shows that at very high frequencies, transitions in the transmission line are critical and all small physical details must be included in the simulation model in order for it to be reliable.

Meeting Name

2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity, EMC, SI and PI 2018 (2018: Jul. 30-Aug. 3, Long Beach, CA)


Electrical and Computer Engineering

Keywords and Phrases

5G mobile communication systems; Busbars; Calibration; Coplanar waveguides; Design; Electric lines; Probes; Wireless telecommunication systems; Design process; Development process; Homogeneous dielectrics; Near-field scanning; Probe calibration; Simulation model; Very high frequency; Wireless communications; Electromagnetic compatibility

International Standard Book Number (ISBN)


Document Type

Article - Conference proceedings

Document Version


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© 2018 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Jul 2018