JPS57205942A - High frequency window for microwave tube - Google Patents

High frequency window for microwave tube

Info

Publication number
JPS57205942A
JPS57205942A JP9057081A JP9057081A JPS57205942A JP S57205942 A JPS57205942 A JP S57205942A JP 9057081 A JP9057081 A JP 9057081A JP 9057081 A JP9057081 A JP 9057081A JP S57205942 A JPS57205942 A JP S57205942A
Authority
JP
Japan
Prior art keywords
external
circuit
window
frequency
high frequency
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.)
Pending
Application number
JP9057081A
Other languages
Japanese (ja)
Inventor
Kunio Tsutaki
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP9057081A priority Critical patent/JPS57205942A/en
Publication of JPS57205942A publication Critical patent/JPS57205942A/en
Pending 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
    • H01J23/36—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy
    • H01J23/40—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit
    • H01J23/48—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit for linking interaction circuit with coaxial lines; Devices of the coupled helices type
    • H01J23/50—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit for linking interaction circuit with coaxial lines; Devices of the coupled helices type the interaction circuit being a helix or derived from a helix

Landscapes

  • Waveguide Connection Structure (AREA)
  • Microwave Tubes (AREA)

Abstract

PURPOSE:To realize a high frequency window of a wide high-frequency range, which is used for a helix-type traveling-wave tube, by providing a high-frequency-window external-circuit converting part, which has a length of 1/4 (+ or -10%) the wave length used between the high frequency window and an external circuit, and has a characteristic impedance value between the input impedance of the helix seen from the external-circuit side of the high frequency window and the input impedance of the external circuit. CONSTITUTION:An external-circuit high-frequency-window converting part having lambdag/4 length is provided between a high frequency window and an external circuit. Here, the characteristic impedance of an external-circuit high-frequency- window converting part is adjusted between the input impedance of the tubular bulb seen from the external-circuit side of the high frequency window, and the characteristic impedance of the external circuit. By providing such an external- circuit high-frequency-window converting part, a helix-type traveling-wave tube having an excellent matching characteristic of the helix seen from the external circuit over a wide range of high frequencies can be provided.
JP9057081A 1981-06-11 1981-06-11 High frequency window for microwave tube Pending JPS57205942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9057081A JPS57205942A (en) 1981-06-11 1981-06-11 High frequency window for microwave tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9057081A JPS57205942A (en) 1981-06-11 1981-06-11 High frequency window for microwave tube

Publications (1)

Publication Number Publication Date
JPS57205942A true JPS57205942A (en) 1982-12-17

Family

ID=14002081

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9057081A Pending JPS57205942A (en) 1981-06-11 1981-06-11 High frequency window for microwave tube

Country Status (1)

Country Link
JP (1) JPS57205942A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61158202A (en) * 1984-12-28 1986-07-17 トムソン‐セ‐エスエフ Ridge square waveguide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61158202A (en) * 1984-12-28 1986-07-17 トムソン‐セ‐エスエフ Ridge square waveguide

Similar Documents

Publication Publication Date Title
US2270638A (en) Diode oscillator
GB671817A (en) Ultra high frequency electron discharge tubes
US2523841A (en) Wave guide coupler
SE7909547L (en) Radiofrequency
GB753999A (en) Improvements in or relating to travelling wave tubes
GB672770A (en) High frequency electron discharge device and circuit
GB678723A (en) Improvements in travelling wave tubes
US3943402A (en) Termination fixture for an electrodeless lamp
GB1331911A (en) Highfrequency high power tubes particularly concerning their output devices
US3576460A (en) Impedance match for periodic microwave circuits and tubes using same
JPS57205942A (en) High frequency window for microwave tube
US3753171A (en) Composite microwave window and waveguide transform
GB1198482A (en) Electron Beam Device
US2761915A (en) Helix couplers
US2895110A (en) High frequency apparatus
US3209272A (en) Wide band traveling wave tube amplifier apparatus
US2958001A (en) Parametric amplifier
US3909754A (en) Waveguide bandstop filter
GB893083A (en) Improvement in or relating to parametric amplification of signals by high frequency electron discharge devices
US2811641A (en) Microwave tube
GB2001829A (en) Antenna input circuit for use in radio receiver
US3946341A (en) Broadband electroacoustic delay lines
US2615998A (en) Multistage cascade amplifier
US2917655A (en) Electric transmission line
JPS57119501A (en) Glass antenna