cylindrical waveguide 中文意思是什麼
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4. the " hot " dispersion equation of the coaxial ridge - disk - loaded cylindrical waveguide twt with an annular electron beam can be firstly obtained according to self - consistent field theory
四、引入薄環形電子注，首次建立了脊加載同軸膜片圓波導的注波互作用線性理論，得到小信號條件下的色散方程。 -
For the first time, the coaxial ridge - disk - loaded cylindrical waveguide as sws is presented. its dispersion equation and the expression of coupling impedance are given by application of the field matching method. a series of numerical results show that the influence of structure dimensions on the dispersion characteristics and interaction impendance
三、創造性地提出脊加載同軸膜片圓波導慢波結構，並對其採用嚴格的場匹配法，詳細推導了色散方程和耦合阻抗表達式，並得到一系列有關系統結構參量與色散和耦合阻抗之關系的數值模擬結果。 -
Owing to having the advantages of large size, good thermal conductivity, high precision of manufacturing and assembling, the all - metal slow - wave structures are widely used in the wide - band, high power traveling wave tube ( twt ) and relativistic twt. furthermore, the disc - loaded cylindrical waveguide is one of the most important slow - wave structures in the all - metal slow - wave structures ( sws )
全金屬慢波結構因其尺寸大、熱耗散能力強、整體性能好等優點被廣泛應用於寬帶、大功率行波管和相對論行波管中，而膜片加載慢波系統正是全金屬結構中最重要、應用最廣泛的一大類結構。 -
It shows that the coaxial disk cylindrical waveguide with longitudinal ribs, which is one of large diameter, all - metal structure and allows for high average power capability, can improve the propagating wave ' s characteristics and gain a relative broad bandwidth by means of modifying the geometrical dimensions of the circuits
結果表明：脊加載盤荷波導是一種尺寸大，功率容量大的全金屬結構，在加脊后可以改善導波特性，提高帶寬。二、對脊加載盤荷波導注波互作用的線性理論進行了研究。 -
The linear theory of the coaxial disk - loaded cylindrical waveguide twt is built and the dispersion equation with an annular electron beam of this twt is obtained according to self - consistent field theory and the field matching method. the computation results of the hot dispersion equation indicate the relations between the electron beam parameters and the small signal gain
利用自洽場理論以及場的匹配方法，推導出此結構在小信號條件下的熱色散方程，討論了電子注參量和慢波系統幾何參量與小信號增益和色散的關系。 -
In this paper, the coaxial disk cylindrical waveguide with longitudinal ribs as sws, a series of detailed studies have been made by theoretical method combining with numerical ananlysis, and a great deal of valuable conclusions have been obtained
本學位論文採用理論分析和計算機模擬相結合就脊加載盤荷波導結構進行了一系列的深入研究，得到了許多有用的結論。 -
First, on the basic theory of the coaxial disk cylindrical waveguide, we analysis field equation in each area of the coaxial disk cylindrical waveguide with longitudinal ribs. the dispersion equation and the coupling impedance of this structure are obtained by means of triangle function ' s orthogonality and combing with the field matching method. through the numerical calculation, we discuss the influence of various structure ' s parameter on the dispersion and the coupling impedance
主要工作和創新成果如下：一、首先在盤荷波導理論的基礎上，嚴格分析加上脊后的各區場表達式，利用邊界條件和函數的正交性推導出對應的色散方程和耦合阻抗表達式，並通過數值模擬計算，詳細討論了該結構的幾何參數對色散方程和耦合阻抗的影響。 -
First, the theory of the coaxial disk - loaded cylindrical waveguide sws is analysed, and the dispersion equation and the coupling impedance of this structure are obtained. through the numerical caculation, it is discussed that the influence of various circuit dimensions on the dispersion and the coupling impedance. 2
本文的主要研究工作和創新點如下：一、首先完善了同軸膜片加載圓波導慢波系統的理論分析，得到該系統色散方程和耦合阻抗表達式，並通過數值模擬計算，詳細討論了慢波系統幾何尺寸對色散特性和耦合阻抗的影響。 -
The influence of various electron beam parameters on the small signal gain is investigated and discussed by the numerical results. 5. the model of the coaxial disk - loaded cylindrical waveguide is manufactured to testify the dispersion properties of this structure
五、加工了同軸膜片加載圓波導慢波系統實驗模型，用諧振法測得的色散特性與理論數據良好吻合，從而驗證了同軸膜片加載圓波導慢波系統色散特性理論分析的正確性。 -
In the dissertation, the coaxial disk - loaded cylindrical waveguide used in sws of relativistic traveling wave tube ( rtwt ) is discussed. the types of the coaxial disk - loaded cylindrical waveguide and the coaxial ridge - disk - loaded cylindrical waveguide are all - metal slow - wave structures and have advantages of large size, good thermal conductivity ? high precision of manufacturing and assembling
本文分析了同軸膜片加載圓波導和脊加載同軸膜片圓波導兩種慢波系統，它們均採用全金屬結構，具備尺寸大、散熱性能好，易加工的特點。 -
Theoretical study on two beams interactions in cylindrical waveguide filled with plasma
等離子體填充圓柱波導中雙流不穩定性的研究 -
Microwaves of 500mw, 2. 1ghz are obtained in the pic simulation. microwaves can be extracted by a cylindrical waveguide of te11 mode or a rectangular waveguide of te10 mode. the beam - to - microwave efficiency is about 14 %
粒子模擬結果表明，在400kev 、 8 . 9ka的束流條件下，在2 . 1ghz處可以獲得大於500mw的高功率微波輸出，功率效率為14 % ，頻率、模式純凈。
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