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Title: Cavity resonance absorption in ultra-high bandwidth CRT deflection structure by a resistive load

Abstract

An improved ultra-high bandwidth helical coil deflection structure for a hode ray tube is described comprising a first metal member having a bore therein, the metal walls of which form a first ground plane; a second metal member coaxially mounted in the bore of the first metal member and forming a second ground plane; a helical deflection coil coaxially mounted within the bore between the two ground planes; and a resistive load disposed in one end of the bore and electrically connected to the first and second ground planes, the resistive load having an impedance substantially equal to the characteristic impedance of the coaxial line formed by the two coaxial ground planes to inhibit cavity resonance in the structure within the ultra-high bandwidth of operation. Preferably, the resistive load comprises a carbon film on a surface of an end plug in one end of the bore.

Inventors:
 [1];  [2]
  1. (Santa Cruz, NM)
  2. (Santa Barbara, CA)
Issue Date:
Research Org.:
EG & G ENERGY MEASUREMENTS INC
OSTI Identifier:
868783
Patent Number(s):
5210464
Assignee:
United States of America as represented by Department of Energy (Washington, DC) LANL
DOE Contract Number:  
AC08-88NV10617
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
cavity; resonance; absorption; ultra-high; bandwidth; crt; deflection; structure; resistive; load; improved; helical; coil; hode; ray; tube; described; comprising; metal; bore; therein; walls; form; ground; plane; coaxially; mounted; forming; planes; disposed; electrically; connected; impedance; substantially; equal; characteristic; coaxial; line; formed; inhibit; operation; preferably; comprises; carbon; film; surface; plug; coaxially mounted; metal wall; ray tube; ground plane; electrically connected; carbon film; substantially equal; helical coil; characteristic impedance; deflection structure; described comprising; ultra-high bandwidth; metal walls; resistive load; ground planes; bore therein; cavity resonance; line formed; coil deflection; deflection coil; improved ultra-high; /315/313/333/

Citation Formats

Dunham, Mark E., and Hudson, Charles L. Cavity resonance absorption in ultra-high bandwidth CRT deflection structure by a resistive load. United States: N. p., 1993. Web.
Dunham, Mark E., & Hudson, Charles L. Cavity resonance absorption in ultra-high bandwidth CRT deflection structure by a resistive load. United States.
Dunham, Mark E., and Hudson, Charles L. Fri . "Cavity resonance absorption in ultra-high bandwidth CRT deflection structure by a resistive load". United States. https://www.osti.gov/servlets/purl/868783.
@article{osti_868783,
title = {Cavity resonance absorption in ultra-high bandwidth CRT deflection structure by a resistive load},
author = {Dunham, Mark E. and Hudson, Charles L.},
abstractNote = {An improved ultra-high bandwidth helical coil deflection structure for a hode ray tube is described comprising a first metal member having a bore therein, the metal walls of which form a first ground plane; a second metal member coaxially mounted in the bore of the first metal member and forming a second ground plane; a helical deflection coil coaxially mounted within the bore between the two ground planes; and a resistive load disposed in one end of the bore and electrically connected to the first and second ground planes, the resistive load having an impedance substantially equal to the characteristic impedance of the coaxial line formed by the two coaxial ground planes to inhibit cavity resonance in the structure within the ultra-high bandwidth of operation. Preferably, the resistive load comprises a carbon film on a surface of an end plug in one end of the bore.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

Patent:

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