close

Вход

Забыли?

вход по аккаунту

?

Патент USA US3069600

код для вставки
Dec. 18, 1962
R. L. WALTER ETAL
3,069,590
ELECTRON TUBE APPARATUS
Original Filed June 14, 1955
6 Sheets—Sheet 1
89
89
INVENTORS
James C. Filmer
Richard L. Walter
BY
ATTORNEY
Dec. 18, 1962
R. L. WALTER ETAL
3,069,590
ELECTRON TUBE APPARATUS
Original Filed June 14, 1955
5
6 Sheets-Sheet 2
68
7
68
73
54
IE'IE_ E.
JNVEJYTOR.
Richard L. walref
James C. F:lmer
By
02px;”
Af'rorney
Dec. 18, 1962
R. |_. WALTER ETAL
3,069,590
ELECTRON TUBE APPARATUS
Original Filed June 14, 1955
6 Sheets-Sheet 3
I
.1\ \
v
_,vA|:r
\\
/
..1|J
.~\/"a‘1/’/A
\l/I
MW‘N~1\I~\:I>r}
@
\
Q
H_
1
_
w
4M
6w
4253
E
306.
03
0,3
6M
aw
55
"v.'al.sil"rI’
vwHulm.I.,l an. ‘k_l um
w\z
\
<QMg(/\
/
_/
4
ala \*_
. .
“
“I
696
II
w
‘.3
/‘a
3
H.
a
r
wa
I
INVENTORS
James C. Filmer
Richard L, Walter
ATTORNEY
Dec. 118, 1962
R. L. WALTER ETAL
3,069,590
ELECTRON TUBE APPARATUS
Original Filed June 14, 1955
6 Sheets-Sheet 4
=
_
.T
.lt “ r1\
4M
./
/
a.
7
x/
./
/
,
z
/
%,
m
_ 51
61m!
75%
9m
MN
W
W
T10
47Z4/26_
%
p52,_)“rFNWQifiT:Y.r.
w
“w“n?
sE
w
7
\a
,
\V1‘ plIA
_
m\
1
\.li\.1,I‘\
.\\\/8
\4
~5/
!{1|/
T
79
W0
W
w
INVENTORS
James C. Filmer
Richard L. Walter
BY
WW”;
ATTORNEY
Dec. 18, 1962
3,069,590
R. L. WALTER ET AL
ELECTRON TUBE APPARATUS
Original Filed June 14, 1955
6 Sheets-Sheet 5
I5
/I\
WW
y.
,
5rM
. C.
w
Dm
W W.mam.
H.
BY
ATTORNEY
Dec. 18, 1962
R. L. WALTER ETAL
3,069,590
ELECTRON TUBE APPARATUS
Original Filed June 14, 1955
6 Sheets-Sheet 6
JRmmemsmmLMAMNam
mm 5
EI T.r
BY
ATTORNEY
2
Secured to the inward end of the tuning plunger 57 is
a thin rectangular ?exible metal diaphragm 58 of a good
3,tl69,590
ELE€TRON TUBE APPARATUS
Richard L. Walter and James C. Filmer, Palo Alto, Calif.,
assignors to Varian Associates, San @arios, Calif, a
corporation of California
Original application June 14, 1955, Ser. No. 515,327, new
Patent No. 2,944,187, dated July 5, 1966. Divided
and this application Aug. 5, 1959, Ser. No. 831,777
4 Claims. (til. 315-548)
electrical conducting material, for example, copper plated
Monel. The ?exible diaphragm is secured to the cavity
resonator wall on two opposite edges only, the remaining
two edges being slightly spaced from the resonator walls.
interposed between the outside wall of the cavity reso
nator and the outward extremity of the plunger exten
sion is a bellows 59' which envelops the tuning plunger.
10 The bellows is sealed at one end to the plunger and at
This invention relates, in general, to electron tube ap
paratus and, in particular, to novel electron tube appara
the other end to the outer wall of the cavity resonator
tus of the type employing cavity resonators such as, for
while at the same‘ time allowing movement of the tuning
thereby maintaining vacuum integrity within the cavity
plunger 57.
Secured to and surrounding the outward extremity of
the tuning plunger is a cup-shaped tuning rack support
61 having attached to its outward wall in diametrically
opposed relation two smooth rectangular bars, tuning
rack support guides 63 (FIGS. 3 and 5). Similarly
2,944,187, issued July 5, 1960‘.
In the art of high frequency ampli?cation, for example, 20 mounted on said tuning rack support 61 and ninety
degrees to said guides 63 is a toothed bar, tuning rack
that range of frequencies between 2500 and 4000‘ mc.,
example, high power klystron tubes utilized in systems
found in radar, navigation beacons and linear accelera
tors, etc. This application is a divisional application of
pending application Serial No. 515,327 ?led June 14,
1955, for Electron Tube Apparatus, now U.S. Patent
there has been lacking a pulsed ampli?er that would pro
vide high gain, that is, 55 db or over; high power, that is
62. Mounted on the outward side of the cavity end wall
l megawatt or more with an average power of 2 kw.,
port guides 63 is tuner slide block 64- having two rec
tangular recesses cut therein (FIG. 3) and ?tted with
and extending outwardly adjacent the tuning rack sup
at the same time combining reliability and long life
(1090 hours) with ease of operation.
Accordingly, it is the object of this invention to pro
vide a novel high power, high gain, electron tube appara
tus offering ease of operation, long life, and electrical
stability.
bearing liners 60‘ as of, for example, tetra?uoroethylene
resin to receive the tuning rack support guides 63 slidable
therein. Actuating the tuning plunger through coaction
with tuning rack 62 is a pinion 65 mounted on one ex~
30 tremity of a tuning actuating rod 66 which extends
One feature of this invention is a novel system for
remote tuning of the cavity resonators thereby facilitating
front panel operation of the apparatus.
Other features and advantages of this invention will
become apparent from a perusal of the speci?cations
taken in connection with the accompanying drawings
wherein,
FIG. 1 is an elevational view partly in section showing
the assembled electron tube apparatus of this invention,
FIG. 2 is a fragmentary side elevation of the structure
of FIG. 1,
FIG. 3 is a fragmentary end view of a cavity resonator
and associated parts,
PEG. "4 is an enlarged part sectional view taken along
line 4i—4 of FIG. 2 looking in the direction of the
arrows,
FIG. 5 is an enlarged cross sectional view taken along
line 5—5 of FIG. 2 looking in the direction of the
arrows,
FIG. 6 is a sectional view taken along line 6——6 of '
through an opening in and is held in position by a pinion
mount 67. Operating pinion 65 and upwardly extending
through apertures suitably provided in the stiffener plates
55', actuating rod 66 (FIG. 2) further extends through
output pole piece 54- and terminates in a gear case 68
(FIG. 7). Within the gear case and rigidly a?ixed to
the tuner actuating rod is a toothed worm gear 69. In
terposed between the toothed worm gear and the output
pole piece is a rectangular gear case mounting plate 71
(FIGS. 5 and 3) having an aperture therein, the inner
surface of the aperture forming a bearing surface for
tuner actuating rod 66. Enveloping the toothed worm
gear 69 (FIG. 7) is the rectangular cup-shaped gear case
68 having an opening 72 in the side outward of the tube
(FIG. 5). Rotatable within the gear case 68 is a worm
shaft 73 positioned to cooperate with said toothed worm
gear 69 said worm shaft extending outwardly of the
gear case 68 and deriving bearing support from the inner
surface of the side opening 72. Remote actuating means
may be coupled to the worm shaft 73 to effectuate remote
MG. 2 looking in the direction of the arrows, and
FIG. 7 is an end view of the apparatus looking in from
the collector end.
The construction of the novel electron tube apparatus
will now be described followed by a description of the
tuning of the cavity resonators. Remote tuning is often
desirable in variable frequency tubes. When installed
operation and function of the apparatus.
a remote station.
in a system gaining access to the tube may be difficult.
Moreover, in some high power applications X-ray radia
tion from the collector can be avoided by tuning from
Output energy (FIG. 7) is extracted from the output
Referring now to FIG. 1, the novel tube apparatus
cavity resonator 5 through output iris 74. Whence the
comprises a cathode structure 1, resonators 2, 3, 4 and
energy is propagated through waveguide 8 outwardly and
5 and a collector assembly 6. Signal energy to be ampli
?ed is supplied tothe ?rst resonator 2 via a concentric 60 upwardly through output window 75 (FIG. 7) to the
load.
line input 7 and ampli?ed in successive resonators 3 and
In operation electrons are emitted from the cathode
4'». The ampli?ed signal is extracted from the output
focused into a beam by the focusing electrode 36 and
resonator 5 and propagated to the load through wave
accelerated through the drift tube. The signal to be
guide 8. The cathode is immersed in an oil bath con
ampli?ed is fed into the input cavity :2 where the beam
tained within a tank 9‘ to prevent arc-overs in the external
is velocity modulated. As the modulated beam travels
cathode region. Surrounding the resonators is an elec
down the drift tube it is further modulated by the inter
trical coil 11 for creating a strong magnetic ?eld to con
mediate bunching cavities 3 and 4, while within the
?ne the electron beam in the resonator region.
drift tube the beam is con?ned in diameter against
Tuning of the cavity resonators is accomplished through
a plurality of tuning plungers 57 (FIGS. 2, 4 and 6) 70 forces tending to spread the beam, such as space charge
forces, by the magnetic ?eld lines supplied by the foscus
movable within the cavity resonators and extending out
ing coils 11, said lines of flux being parallel to the drift
wardly thereof through an aperture‘ in the resonator wall.
3,089,590
4
U
tube in this region. The output cavity extracts electro
magnetic energy from the modulated beam and said
energy is then coupled out of the output cavity through
iris 74 and propagated through waveguide 8 and window
of said plunger extension and ?xedly secured thereto,
said rack support being longitudinally coextensive with a
substantial portion of said bellows whereby the length
75 to the load. Tuning of the tube is obtained by a mov
of said plunger extension is minimized, a rack carried
longitudinally of said rack support member, and a pinion
able wall type tuning plunger which is movable within
engaging said rack for driving said plunger Within said
the resonator by rotation of worm shaft 73 which oper
cavity resonator for tuning thereof.
ates upon actuating rod 66 which in turn cooperates
2. The apparatus according to claim 1 including a
through pinion 65 to cause tuner rack support and at
tuner guide member carried outwardly and along the
tached plunger and diaphragm to move in and out of the 10 side of said plunger extension and ?xedly secured there
cavity thereby changing the resonant frequency of said
cavity.
Since many changes could be made in the above
construction and many apparently widely different em
bodiments of this invention‘ could be made without de
parting from the scope thereof, it is intended that all
matter contained in the above description or shown in
the accompanying drawings shall be interpreted as illus
trative and not in a limiting sense.
What is claimed is:
1. In an electron tube apparatus a tuner assembly
including, an evacuated cavity resonator adapted for
electromagnetic interaction with a beam of electrons pass
able therethrough, a tuning plunger movable within said
cavity resonator for changing the resonant frequency
thereof, said plunger having an extension extending out
wardly of said cavity resonator through an aperture in
the side wall thereof, an extensible bellows sealed in a
gas tight manner at its ends to said tuning plunger and
the side wall of said cavity resonator for allowing move
ment of said tuning plunger without destroying the vac
uum integrity of said cavity resonator, a tuning rack
support member carried outwardly and along the side
to, a guide block having a recess therein for slideably
mating with said tuner guide member to guide said tun
ing plunger, said guide block being ?xedly coupled to
said cavity resonator.
3. The apparatus according to claim 2 wherein said
tuner guide member is disposed within a plane substan
tially at 90° to the plane containing said rack.
4. The apparatus according to claim 1 wherein said
tuning rack support member comprises a cup~shaped
member carried from said plunger extension with the
side walls of said cup-shaped rack support being disposed
substantially coaxial with, externally of, and in surround
ing relationship with said bellows.
References Cited in the ?le of this patent
UNITED STATES PATENTS
2,106,768
2,106,769
2,304,186
2,342,897
Southworth __________ __
Southworth __________ __
Litton _______________ __
Goldstine ____________ __
Feb, 1,
Feb. 1,
Dec. 8,
Feb. 29,
1938
1938
1942
1944
2,807,746
Gardner et a1. ________ __ Sept. 24, 1957
Документ
Категория
Без категории
Просмотров
0
Размер файла
514 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа