CN203134747U - Adjustable filter loading double gap coupling broadband output apparatus - Google Patents
Adjustable filter loading double gap coupling broadband output apparatus Download PDFInfo
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- CN203134747U CN203134747U CN 201320088514 CN201320088514U CN203134747U CN 203134747 U CN203134747 U CN 203134747U CN 201320088514 CN201320088514 CN 201320088514 CN 201320088514 U CN201320088514 U CN 201320088514U CN 203134747 U CN203134747 U CN 203134747U
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Abstract
Provided is an adjustable filter loading double gap coupling broadband output apparatus, belonging to the vacuum electronic device field and comprises a double gap coupler body arranged in a klystron device and called as a first stage filter; the radial direction periphery of the double gap coupler body is covered by a magnetic screen pole shoe; a first mebrane extends in an axial direction of the double gap coupler body and is in connection with a second stage filter containing a fixing tuning pin and an adjustable screw device; a second membrane and a third stage filter are successively coaxially arranged; behind the third stage filter, a third membrane is arranged; and then an nth filter is successively arranged until to an output terminal of a broadband. Through adjusting adjustable screws on each passive filter chamber, the apparatus can improve flatness of output characteristic curves after welding of the fixing tuning pin so as to obtain better broadband output power characteristics. The apparatus can obtain broadband with more than 600 MHz for a C wave band multiple-beam klystron.
Description
Technical field
The utility model belongs to the vacuum electron device field, specially refers to the double gap coupling broadband output device that a kind of tunable filter loads.
Background technology
The broadband multiple-beam klystron is the core vacuum microwave power amplifying device of components of modern Radar, and the performance of radar is played conclusive effect.Klystron is with respect to travelling wave tube, its bandwidth is narrower, but efficient height, average power is big, development along with the modern military technology, to high-average power, low-work voltage, broadband, the demand of undersized vacuum microwave power amplifying device more and more widely, become one of important directions of microwave tube developmental research from now on, and wish and under than low peak power, to obtain wideer bandwidth, the broadband multiple-beam klystron just has remarkable advantages, though the following cast of maximum output 30kW is less, because of volume little, in light weight, average power is big, bandwidth, application prospect is become better and better.For further widening frequency band, the ad hoc adjustable multiple filter output system that can make band spread of having counted makes the bandwidth of C-band multiple-beam klystron can be comparable with the bandwidth of coupled-cavity TWT.
Frequency bandwidth for the broadening multiple-beam klystron, traditional design meeting at first considers to adopt double gap coupling output cavity, perhaps consider to adopt the multiple filter structure to increase output bandwidth, but for reaching 11% relative bandwidth, adopt single method can't realize, therefore considering to adopt multiple filter to load double gap coupling output cavity structure increases the multiple-beam klystron output bandwidth, makes it to become a kind of effective means.
Concerning multiple-beam klystron, adopt double gap coupling cavity structure itself with regard to more complicated, increase the one-level filter, structure will be more more complex, variable factor will increase, and the variation of the cold survey characteristic curve of multiple-beam klystron output flatness will be greatly before and after the welding.Frequency band is more wide, and cold survey characteristic is just more responsive with the fluctuating of frequency in the frequency band.For this reason on every grade of passive filter cavity design and installation tuner, to welding the cold survey characteristic curve of output of back variation, by adjusting the tuner on the passive filters at different levels chamber, improve the flatness of curve of output, guarantee the flatness of the cold survey characteristic of multiple-beam klystron output in wideer frequency band range.This structure when multiple-beam klystron heat is surveyed, also can be adjusted the Frequency Response of power output.
Summary of the invention
The utility model technical issues that need to address are, for further improving the bandwidth of operation of multiple-beam klystron, relative bandwidth can be reached more than 11%, just need a kind of double gap coupling of design output cavity multiple filter structure, to guarantee the broadband operation performance of homogeneous tube.The purpose of this utility model provides the double gap coupling broadband output device that a kind of tunable filter loads.In order to realize this purpose, the technical scheme that the utility model adopts is, the double gap coupling broadband output device that a kind of tunable filter loads, comprise that a device is referred to as the double gap coupling cavity of first order filter in the klystron device, radial outer periphery is surrounded by the magnetic cup pole shoe, it is characterized in that, extend axially along it and to install diaphragm one, it is connecting contains the fixedly second level filter of tuning screw pin and tunable screw device, arranged in co-axial alignment diaphragm two and third level filter successively, this grade filter contains same fixedly tuning screw pin, tunable screw device and diaphragm three, arranging n level filter more continuously until the broadband output, wherein said n level, its span are n=2 to n=7.
The beneficial effects of the utility model are by adjusting the tunable devices on the passive filters at different levels chamber that loads, to improve the fixedly tuning screw pin output characteristic curve flatness after welding, thereby obtain broadband characteristics of output power preferably.This structure can obtain bandwidth more than the 600MHz for the C-band multiple-beam klystron.
Description of drawings
Fig. 1 is the double gap coupling broadband output device schematic diagram that tunable filter loads in the multiple-beam klystron;
Fig. 2 is tuning screw pin degree of depth fine setting schematic diagram in the tunable filter.
Embodiment
With reference to Fig. 1, represent the double gap coupling broadband output device schematic diagram that tunable filter loads in a kind of multiple-beam klystron; 1 for being referred to as the double gap coupling cavity of first order filter among the figure, radial outer periphery is surrounded by magnetic cup pole shoe 7,2 for to extend axially the diaphragm one that installs along it, it is connecting contains the fixedly second level filter 4 of tuning screw pin 3 and tunable screw device 10, arranged in co-axial alignment diaphragm 25 and third level filter 6 successively, be fixedly tuning screw pin 3, tunable screw device 10 and diaphragm 38 of filter, arranging n level filter 9 more continuously until the broadband output thereafter.
With reference to Fig. 2, for the tuning screw pin degree of depth in the tunable filter strengthens schematic diagram.The wherein one-level filter that expression loads after fixedly the tuning screw pin welding is solidified, under the output characteristic curve variation situation, carries out pin degree of depth fine setting (be pulled outwardly or push inward) by tunable screw device 10, thereby adjusts the output characteristic curve flatness.
Claims (2)
1. the double gap coupling broadband output device that loads of a tunable filter, comprise that a device is referred to as the double gap coupling cavity of first order filter in the klystron device, radial outer periphery is surrounded by the magnetic cup pole shoe, it is characterized in that, extend axially along it and to install diaphragm one, it is connecting contains the fixedly second level filter of tuning screw pin and expansion screw device, arranged in co-axial alignment diaphragm two and third level filter successively, be diaphragm three, arranging n level filter more continuously until the broadband output thereafter.
2. the double gap coupling broadband output device of tunable filter loading according to claim 1 is characterized in that, described n level filter, and the span of n is 2 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320088514 CN203134747U (en) | 2013-02-27 | 2013-02-27 | Adjustable filter loading double gap coupling broadband output apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320088514 CN203134747U (en) | 2013-02-27 | 2013-02-27 | Adjustable filter loading double gap coupling broadband output apparatus |
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| Publication Number | Publication Date |
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| CN203134747U true CN203134747U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320088514 Expired - Lifetime CN203134747U (en) | 2013-02-27 | 2013-02-27 | Adjustable filter loading double gap coupling broadband output apparatus |
Country Status (1)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681176A (en) * | 2013-10-28 | 2014-03-26 | 中国科学院电子学研究所 | Band-shaped beam klystron outer tuning apparatus |
| CN105428188A (en) * | 2015-12-18 | 2016-03-23 | 中国科学院电子学研究所 | Multi-link planar tuning component, and assembly clamp and assembly method therefor |
| RU2645298C2 (en) * | 2016-08-11 | 2018-02-20 | Акционерное общество "Научно-производственное предприятие "Алмаз" (АО "НПП "Алмаз") | Broadband multiport klystron with a multilink filter system |
| JP2019531664A (en) * | 2016-10-25 | 2019-10-31 | ケーエムダブリュ・インコーポレーテッド | Radio frequency filter with cavity structure |
| CN110770970A (en) * | 2018-03-23 | 2020-02-07 | 深圳市大富科技股份有限公司 | Filter and communication equipment |
-
2013
- 2013-02-27 CN CN 201320088514 patent/CN203134747U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681176A (en) * | 2013-10-28 | 2014-03-26 | 中国科学院电子学研究所 | Band-shaped beam klystron outer tuning apparatus |
| CN103681176B (en) * | 2013-10-28 | 2017-07-28 | 中国科学院电子学研究所 | The outer tuner of Sheet beam klystron |
| CN105428188A (en) * | 2015-12-18 | 2016-03-23 | 中国科学院电子学研究所 | Multi-link planar tuning component, and assembly clamp and assembly method therefor |
| RU2645298C2 (en) * | 2016-08-11 | 2018-02-20 | Акционерное общество "Научно-производственное предприятие "Алмаз" (АО "НПП "Алмаз") | Broadband multiport klystron with a multilink filter system |
| JP2019531664A (en) * | 2016-10-25 | 2019-10-31 | ケーエムダブリュ・インコーポレーテッド | Radio frequency filter with cavity structure |
| EP3534455A4 (en) * | 2016-10-25 | 2020-05-27 | KMW Inc. | Radio frequency filter having cavity structure |
| US10998603B2 (en) | 2016-10-25 | 2021-05-04 | Kmw Inc. | Radio frequency filter having cavity structure |
| CN110770970A (en) * | 2018-03-23 | 2020-02-07 | 深圳市大富科技股份有限公司 | Filter and communication equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |