Accession Number : ADA332114

Title :   Design Considerations for Ultra-Wideband, High-Voltage Baluns

Descriptive Note : Final rept. Mar 93-Oct 94

Corporate Author : FARR RESEARCH ALBUQUERQUE NM

Personal Author(s) : Farr, Everett G. ; Sower, Gary D. ; Buchenauer, C. J.

PDF Url : ADA332114

Report Date : OCT 1994

Pagination or Media Count : 38

Abstract : We consider how to build a balun for fast-risetime pulses at high voltage. We are concerned about signals with risetimes on the order of 100-200 ps with high peak voltages and peak powers. We propose the simplest method is a coaxial unzipper. We consider (1) the dielectric strength and maximum coaxial radius allowable while still maintaining the risetime, and (2) methods to reduce the coupling to the common mode. Finally, we calculate the peak electric field and characteristic impedance of the coaxial unzipper at various points along its length using a two-dimensional finite element code. The results of this design will be used to build an ultrawideband antenna system.

Descriptors :   *BROADBAND ANTENNAS, HIGH POWER, FINITE ELEMENT ANALYSIS, ELECTRIC FIELDS, PULSE GENERATORS, DIELECTRIC STRENGTH, ELECTRICAL IMPEDANCE, ANTENNA RADIATION PATTERNS, HIGH VOLTAGE, ANTENNA FEEDS, COAXIAL CABLES.

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE