GB967966A - Slow wave apparatus - Google Patents

Slow wave apparatus

Info

Publication number
GB967966A
GB967966A GB37031/61A GB3703161A GB967966A GB 967966 A GB967966 A GB 967966A GB 37031/61 A GB37031/61 A GB 37031/61A GB 3703161 A GB3703161 A GB 3703161A GB 967966 A GB967966 A GB 967966A
Authority
GB
United Kingdom
Prior art keywords
conductors
wave
boundary member
parallel
spaced
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB37031/61A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SFD LAB Inc
Original Assignee
SFD LAB Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SFD LAB Inc filed Critical SFD LAB Inc
Publication of GB967966A publication Critical patent/GB967966A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/005—Cooling methods or arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
    • H01J23/24—Slow-wave structures, e.g. delay systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/34—Travelling-wave tubes; Tubes in which a travelling wave is simulated at spaced gaps
    • H01J25/42—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and with a magnet system producing an H-field crossing the E-field
    • H01J25/44—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and with a magnet system producing an H-field crossing the E-field the forward travelling wave being utilised

Abstract

967,966. Travelling-wave tubes; magnetrons. S-F-D LABORATORIES Inc. Oct. 16, 1961 [Oct. 14, 1960], No. 37031/61. Heading H1D. A slow-wave structure, e.g. for an " M "-type travelling wave tube, comprises a plurality of regularly spaced parallel conductors 1, Fig. 1, a pair of opposed boundary members 2 joining together the extremities of the conductors, a first plurality of transverse conductors 3 spaced from one of the boundary members and closer to this boundary member than to the opposite boundary member and connecting alternate parallel conductors to the parallel conductor on one side thereof, a second plurality of transverse conductors 3 spaced from the opposite boundary member and closer to this boundary member than to the first-named boundary member and connecting the said alternate parallel conductors to the parallel conductor on the other side, the outer portions of the parallel conductors extending from each transverse conductor to the boundary member closer thereto providing a high impedance to the boundary member, and a ground plane member 13, Fig. 2, disposed adjacent the active portions of the parallel conductors which extend between the transverse conductors and spaced from the active portions by a distance such that the bandwidth of the structure is substantially increased. The structure may be a unitary structure, Fig. 2, or formed out of a network of hollow pipes, Fig. 5, through which a coolant fluid may flow. Input and output terminals 11, 12, Fig. 2, are provided at each end, a low impedance being provided by end slots 6 each extending a quarter wavelength from the end conductors 7, 8. In the travelling-wave magnetron shown in Fig. 4, a cathode 22 is surrounded by the slow-wave structure 5<SP>1</SP> which is itself surrounded by an anode block 20. In operation, an R.F. wave injected on to the delay line is sufficient to initiate emission from the cold cathode 22, and the emission remains continuous due to secondary emission resulting from back-bombardment of electrons which have gained energy from the wave.
GB37031/61A 1960-10-14 1961-10-16 Slow wave apparatus Expired GB967966A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US62586A US3231780A (en) 1960-10-14 1960-10-14 Meandering slow wave circuit having high impedance stub support means

Publications (1)

Publication Number Publication Date
GB967966A true GB967966A (en) 1964-08-26

Family

ID=22043452

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37031/61A Expired GB967966A (en) 1960-10-14 1961-10-16 Slow wave apparatus

Country Status (2)

Country Link
US (1) US3231780A (en)
GB (1) GB967966A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE627608A (en) * 1962-04-09
US3396348A (en) * 1964-01-06 1968-08-06 Sperry Rand Corp Broadband controlled mutual inductance slow wave propagating structure
US3417279A (en) * 1964-09-04 1968-12-17 Air Force Usa Planar slow-wave circuit
US3443146A (en) * 1966-02-16 1969-05-06 Westinghouse Electric Corp Conductive elements interconnecting adjacent members of the delay structure in a traveling wave tube
US3504222A (en) * 1966-10-07 1970-03-31 Hitachi Ltd Slow-wave circuit including meander line and shielding therefor
US3666983A (en) * 1970-12-28 1972-05-30 Raytheon Co Wave propagating structure for crossed field devices
US3736534A (en) * 1971-10-13 1973-05-29 Litton Systems Inc Planar-shielded meander slow-wave structure
US3787747A (en) * 1972-08-07 1974-01-22 Varian Associates Periodic magnetically focused beam tube
DE2250901A1 (en) * 1972-10-17 1974-04-18 Max Planck Gesellschaft WAVE CONDUCTORS FOR ELECTROMAGNETIC WAVES IN THE SUBMILLIMETER AND INFRARED RANGE

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL88043C (en) * 1947-01-09
FR958228A (en) * 1947-11-18 1950-03-06
FR1053362A (en) * 1952-04-03 1954-02-02 Csf Improvements to delay lines of interdigital structure for traveling wave tubes
FR63583E (en) * 1952-12-13 1955-09-29 Csf Traveling wave tube oscillator with propagation of electromagnetic energy in the opposite direction of the beam
DE1013367B (en) * 1954-07-16 1957-08-08 Csf Delay line for traveling pipes
FR1115157A (en) * 1954-11-29 1956-04-20 Csf Delay line for traveling wave tubes
US2853642A (en) * 1955-02-23 1958-09-23 Hughes Aircraft Co Traveling-wave tube
DE1074092B (en) * 1955-12-28 1960-01-28 Siemens & Halske Aktiengesellschaft, Berlin und München Delay line with filter characteristics for traveling wave tubes
NL217676A (en) * 1956-05-31
US2853644A (en) * 1956-07-30 1958-09-23 California Inst Res Found Traveling-wave tube
GB809951A (en) * 1957-03-20 1959-03-04 Standard Telephones Cables Ltd Improvements in or relating to travelling wave tubes
US2930927A (en) * 1957-09-30 1960-03-29 Hughes Aircraft Co Traveling-wave tube

Also Published As

Publication number Publication date
US3231780A (en) 1966-01-25

Similar Documents

Publication Publication Date Title
GB681425A (en) Improvements in and relating to tubes of the magnetron type for ultra short waves
GB967966A (en) Slow wave apparatus
US2726291A (en) Traveling wave tube
US3293482A (en) Plural output traveling wave tube
US3270241A (en) Cyclotron wave double-stream devices
GB786986A (en) Travelling wave tube
US2920229A (en) Traveling wave velocity modulation devices
GB1042620A (en) High frequency electron discharge devices embodying slow-wave structures
US3227959A (en) Crossed fields electron beam parametric amplifier
US2823333A (en) Traveling wave tube
US3050657A (en) Slow wave structures
US2710932A (en) Broad-band transmit-receive tube for duplexers
GB1284455A (en) Impedance match for periodic microwave circuits and tubes using same
GB1331911A (en) Highfrequency high power tubes particularly concerning their output devices
US3051911A (en) Broadband cyclotron wave parametric amplifier
US3230482A (en) Compact directional coupler
US3361926A (en) Interdigital stripline teeth forming shunt capacitive elements and an array of inductive stubs connected to adjacent teeth
US3082351A (en) Crossed-field amplifier
US3192430A (en) Microwave amplifier for electromagnetic wave energy incorporating a fast and slow wave traveling wave resonator
US2959707A (en) Slow wave propagating structure
US2888609A (en) Electronic devices
GB953634A (en) Electron discharge device
US2932762A (en) Distributed microwave amplifier
GB994507A (en) Improvements in or relating to electron beam tubes
US3054018A (en) Traveling wave amplifier tube