Calibration of Broadband RF Field Probes Using a Coaxial Transmission Line

Published

May 20, 2002

Author(s)

Claude Weil, David R. Novotny, Robert T. Johnk, Arthur Ondrejka

Abstract

We discuss a new broadband (10MHz to 40 GHz) RF field standard to be used for calibrating electrically-small electromagnetic field probes. The technique generates a well-defined and uniform TEM mode fields between the conductors of an air-filled coaxial transmission line of conical geometry (termed a "co-conical" line) that is terminated in a well-matched high-power, distributed load. Internal field levels equivalent to power density levels in excess of 10mW/cm² can be generated using broadband power sources of only 20 watts output. The new system will be capable of rapid, automated and accurate calibration of small field probes and can realize significant savings in both equipment/facility expenses and operational costs.

Conference Dates

May 20-22, 2002

Conference Location

Gdansk, 1, PL

Conference Title

14th International Conference on Microwaves, Radar and Wireless Communications - MIKON-2002

Pub Type

Conferences

Keywords

broadband, calibration, field standard, field probes, radio-frequency, transmission line

Citation

Weil, C. , Novotny, D. , Johnk, R. and Ondrejka, A. (2002), Calibration of Broadband RF Field Probes Using a Coaxial Transmission Line, 14th International Conference on Microwaves, Radar and Wireless Communications - MIKON-2002, Gdansk, 1, PL (Accessed October 18, 2025)