Abstract
The objective of this paper is to present a simple
alternative method to determine the transfer impedance of
coaxial cables of different lengths and referring them to a perunit-
length parameter. The transfer impedance of any cable
is of interest since it accounts for coupling between cables
(crosstalk), for pick-up of external signals and also for emission
of electromagnetic energy. The method proposed here employs
a direct injection of a current into the center conductor and
into the braid simultaneously from either end of the cable. The
alternative method uses a modified line injection. The modified
line injection employs a common mode line injection as well
as a differential mode line injection. For both ways of current
injection equivalent circuits will be shown and the results will be
contrasted. The results are based on a forward gain measurement
of distinct lengths of the same quality of coax cables and require
little post processing.
alternative method to determine the transfer impedance of
coaxial cables of different lengths and referring them to a perunit-
length parameter. The transfer impedance of any cable
is of interest since it accounts for coupling between cables
(crosstalk), for pick-up of external signals and also for emission
of electromagnetic energy. The method proposed here employs
a direct injection of a current into the center conductor and
into the braid simultaneously from either end of the cable. The
alternative method uses a modified line injection. The modified
line injection employs a common mode line injection as well
as a differential mode line injection. For both ways of current
injection equivalent circuits will be shown and the results will be
contrasted. The results are based on a forward gain measurement
of distinct lengths of the same quality of coax cables and require
little post processing.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE, EMC EUROPE 2020 |
| Number of pages | 5 |
| ISBN (Electronic) | 9781728155791 |
| DOIs | |
| Publication status | Published - 23 Sept 2020 |
| Event | 2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE: EMC EUROPE 2020 - Rome (Online Conference), Virtual, Rome, Italy Duration: 23 Sept 2020 → 25 Sept 2020 http://www.emceurope2020.org |
Conference
| Conference | 2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE |
|---|---|
| Abbreviated title | EMC Europe 2020 |
| Country/Territory | Italy |
| City | Virtual, Rome |
| Period | 23/09/20 → 25/09/20 |
| Internet address |
Keywords
- Transfer impedance
- vector network analyzer
- line injection
- measurement method
- shielded cable
- vector network analyzer (VNA)
- common mode
- differential mode
ASJC Scopus subject areas
- Safety, Risk, Reliability and Quality
- Aerospace Engineering
- Radiation
- Electrical and Electronic Engineering
- Hardware and Architecture
- Computer Networks and Communications