Cavity resonance absorption in ultra-high bandwidth CRT deflection structure by a resistive load
- Santa Cruz, NM
- Santa Barbara, CA
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.
- Research Organization:
- EG & G ENERGY MEASUREMENTS INC
- DOE Contract Number:
- AC08-88NV10617
- Assignee:
- United States of America as represented by Department of Energy (Washington, DC)
- Patent Number(s):
- US 5210464
- OSTI ID:
- 868783
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
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
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