共查询到20条相似文献,搜索用时 156 毫秒
1.
大功率速调管在雷达发射机中的运用越来越广泛。本文详细地介绍了大功率速调管的使用和维护方法,以便有效使用速调管放大器,降低整机的运行费用。 相似文献
2.
雷达发射机中大功率器件(如速调管)的强迫液体冷却是一种常用的冷却方式。本文根据某雷达发射机冷却系统的设计,介绍了大功率速调管 射机水冷系统的设计方法。 相似文献
3.
4.
介绍了一种S波段高功率单注速调管发射机,叙述了发射机的组成形式并给出了其主要性能指标。重点介绍了该雷达发射机所采用的高可靠组合式固态调制器技术、大功率高稳定度集中式高压电源技术、大功率高压电源软启动技术、高压大功率固态反馈式de-Q稳幅技术、高压大功率集中式固态充电开关技术以及完备的监控保护、大电流回路的走线和结构设计等,最后展望了它广阔的应用前景。 相似文献
5.
6.
7.
现代雷达用的宽频带大功率速调管 总被引:1,自引:0,他引:1
扼要地评述了宽带大功率速调管的技术现状,介绍了主要的宽带速调管管种以及展宽频带的途径,特别介绍了近年来由俄罗斯研制成功的多注宽带速调管的性能和特点,讨论了宽频带大功率速调管的发展趋势和需要解决的关键技术问题。 相似文献
8.
高功率雷达发射管──速调管可靠性的研究钮得禄(北京中科院电子所100080)随着大功率高增益速调管工作带宽的拓宽(凸/由原来的5%,现增加到10%~12%),远程雷达发射机采用速调管做末级放大器的热情有增无减。除了它的高增益、高功率优点外,它的高可靠... 相似文献
9.
雷达发射机中大功率器件(如速调管)的强迫液体冷却是一种常用的冷却方式。本文根据某雷达发射机冷却系统的设计.介绍了大功率速调管发射机水冷系统的设计方法。 相似文献
10.
大功率速调管的使用和维护 总被引:1,自引:0,他引:1
大功率速调管在雷达发射机中的运用越来越广泛。本文详细地介绍了大功率速调 管的使用和维护方法,以便有效使用速调管放大器,降低整机的运行费用。 相似文献
11.
大功率速调管是一种基于速度调制原理将电子注能量转换成微波能量的微波真空电子器件,它具有高功率、高效率、高增益和高稳定性等优点,是微波真空电子器件中脉冲功率和平均功率最高的器件。速调管自20世纪30年代发明以来,在粒子加速器、雷达和通信等微波电子系统,以及真空电子技术进步的推动下,已发展成功多种类型大功率速调管,其频率覆盖整个微波,并扩展到毫米波和太赫兹波段,最大脉冲功率达200MW,最大平均(连续波)功率达MW级。近年来,在高能粒子加速器、宽带雷达系统、毫米波和太赫兹波电子系统的推动下,大功率速调管取得了令人瞩目的进步,本文比较系统地介绍了大功率速调管的技术现状和在提高功率、提高效率、提高工作频率、展宽带宽等方面取得的最新进展。 相似文献
12.
高峰值功率多注速调管是一种在单注速调管及传统多注速调管的基础上发展起来的新型微波电真空器件。本文介绍了高峰值功率多注速调管的基本特点及目前世界上高峰值功率多注速调管的发展状况,其中包括已经研制成功的10MW级多注速调管、正在研制的50 MW级多注速调管及一些处于概念设计阶段的更高功率水平的多注速调管。最后阐述了研制高峰值功率多注速调管遇到的问题及可能的解决方法,并对其发展前景进行了展望。 相似文献
13.
Jet Propulsion Laboratory contracted with Varian Associates to design, build, and deliver replacements for VA-949J klystrons in the X -band planetary radar transmitter on the Goldstone, CA, 70 m antenna. Output power was to be increased from 200 kW to 250 kW CW per klystron, and full DC beam power was to be dissipated in the collector. Replacements were to be made with a minimum of transmitter modifications. Two model VKX-7864A klystrons were subsequently built and delivered. The design of these klystrons and the results of their performance testing are described. The planetary radar transmitter is now operating with these two klystrons 相似文献
14.
Technique of Pulsing Low Power Reflex Klystrons 总被引:1,自引:0,他引:1
《Microwave Theory and Techniques》1956,4(1):40-47
15.
高峰值功率多注速调管是一种新型的微波电真空器件,其广阔的应用前景已受到人们的高度关注。本文详细介绍了国际上已经研制成功和正在研制的几种高峰值功率多注速调管的情况,给出了这些速调管的具体参数,讨论了这些速调管在研制过程中需要解决的关键技术问题。 相似文献
16.
Two methods for improving the equidriving power-frequency characteristics of broad-band high power klystrons are presented. One is that a comb-line bandpass filter with someattenuation properties is inserted between the TWT driver and the klystron for compensatingthe gain-frequency characteristics of the klystron to get the required equidriving power-frequencycharacteristics. The other is that a reactive element is connected with the input cavity to changeits resonance frequencies f_0 and Q_L, and thus to improve the power-frequency characteristics ofthe klystron. 相似文献
17.
18.
19.
20.
《Electron Devices, IEEE Transactions on》1959,6(4):428-437
The principles of low-noise guns have been applied to klystron amplifiers with good corroboration of the theory. In the past, many people thought that klystrons had inherently high noise figures, while others advanced the theory that low-noise guns might be used with klystrons as well as with wave tubes. The development to be described here shows that the former impression is not true and verifies that low-noise klystron amplifiers are possible. The most obvious difference between the guns for low-noise klystron amplifiers and those typical of low-noise traveling-wave tubes is the higher beam current which is required for adequate klystron gain. A byproduct of this higher current is a wide dynamic range. In addition to the development of the electrical parameters, a major effort went into klystron construction techniques somewhat peculiar to low-noise klystron amplifiers. The data taken show that alignment of the low-noise gun electrodes with the drift tube, alignment of the beam with the magnetic field, elimination of the collector's secondary electrons from the beam, and cleanliness of the tube are of primary importance in constructing a low-noise klystron amplifier. Several two-cavity, low-noise klystron amplifiers were built for operation in both S-band and C-band. The typical low-level gain was 11.5 db, and the saturated power output was 180 mw. Several tubes exhibited noise figures below 9 db; the lowest value obtained was 6.7. db. 相似文献