Flanges for waveguides - part 2 : relevant specifications for flanges for ordinary rectangular waveguides iec 60154 - 2 : 1980 a1 : 1997 ; german version en 60154 - 2 : 1997 a1 : 1997 波導管用法蘭盤.第2部分:普通矩形波導用法蘭盤的一般
Finally , a rigorous analysis with sinusoidal galerkin method is made of a broad wall slot coupler between two crossed rectangular waveguides . the analysis of the relationships among its s parameters is also made 文章最后采用矩量法分析了一種縫隙陣中常用的正交波導功率耦合器件的特性,并給出了其s參數(shù)之間的一般關系。
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處可以獲得大于500mw的高功率微波輸出,功率效率為14 % ,頻率、模式純凈。
In the paper , the transition of ka band rectangular waveguide to micro strip probe and the back - to - back structure are designed . the measurement results indicated the low insert loss and low return loss from 35 ghz to 40 ghz 本文設計了ka波段矩形波導到微帶探針過渡結構以及背對背結構,測試結果表明,在35 40ghz頻率范圍內(nèi),其插入損耗和回波損耗都比較小。
A virtual cathode oscillator with axially extracted te10 mode of rectangular waveguide has been designed and manufactured . the measurement system which is used to diagnose microwaves emitted by the virtual cathode oscillator has been prepared 對基于tomachan加速器參數(shù)的軸向提取矩形波導te10模虛陰極進行了工程設計和加工,并對測量系統(tǒng)進行標定,為下一步的實驗研究工作打下了基礎。
Based on the idea of improving the frequency characteristic of the two parameters above , a novel method of improving the bandwidth of the slot array antenna is presented in this paper , which uses a ridged waveguide instead of a rectangular waveguide as the radiating waveguide 本文以改善這兩個參數(shù)的頻率特性為出發(fā)點,提出了一種展寬波導裂縫天線帶寬的新方法,即用脊波導代替矩形波導作為輻射波導。
The substrate integrated waveguide borrow advantages of both of the rectangular waveguide and the microstrip , such as : high q , low loss just like rectangular waveguide ; small size , low profile , low cost , easy to be integrated like microstrip 它綜合了矩形波導和微帶線的一系列優(yōu)點:和傳統(tǒng)的矩形波導一樣集成波導具有較高的品質因數(shù)和很小的輻射損耗;而它又和微帶線一樣具有體積小、重量輕、容易加工和集成等優(yōu)點。
This thesis in combination with the actual engineering demand , analyzes and designs a horizontally polarized triangular - grid planar phased array antenna , which composed of open - ended rectangular waveguide , the main steps of analyzing and designing are as follows : 1 . at first , taking no account of mutual coupling among the array elements , classical electromagnetic theory is used to establish analyzing model for finite array , and initial value parameters of the array structure which basic satisfy the design index are got , these parameters provide reference for subsequent analyzing and design 本論文結合實際工程需要,分析和設計了一個采用水平極化方式的三角形柵格矩形波導相控陣天線,其主要步驟如下: 1 .首先,在不考慮陣列單元間互耦影響的情況下,采用經(jīng)典電磁理論建立有限陣列分析模型,通過分析得到了基本滿足設計指標的陣列結構參數(shù),為后續(xù)的分析、設計提供參考。
A new waveguide made of changing a wide wall of a rectangular waveguide to a uniform curved wall is called conformal waveguide . a kind of expression of approximate solution for domain mode of the new waveguide , including symmetric , unsymmetric arc , parabolic arch , hyperbolic arch , elliptic arch , etc . , is constructed by using boundary condition of mental waveguide , variational method and boundary element method . by using the equivalence principle , an approximate calculating formula for equivalent resonant conductance of a narrow longitudinal halfwavelength slot cut in the curved wall of the unsymmetric arcrectangular waveguide is derived , and the result is shown . although this solution is approximate , it can solve the problem in designing the slotted antenna of such conformal waveguide 把矩形波導一個寬面外突成均勻曲面構成的新波導統(tǒng)稱為共形波導.利用金屬波導邊界條件、變分法、邊界元素法構造這種新波導中主模場的一種近似解表達式,包括曲面橫截線為對稱、非對稱圓弧,拋物線弧,雙曲線弧,橢圓弧等.然后根據(jù)等效原理,推導非對稱圓弧矩形波導曲面上窄的縱向半波長縫隙的等效諧振電導的近似計算公式,給出計算曲線.這種解雖然是近似的,但卻能解決這類共形波導縫隙天線的工程設計
The equivalent circuits is synthesized for the case where the te10 mode is the only propagating waveguide mode , which based on basic waveguide - circuits equivalent circuits such as cross - coupled coaxial line rectangular waveguide junctions , rectangular waveguide transmission lines etc . then we make the computation program for the equivalent circuits to analyse and optimize the vco circuit , and get the each parameter ' s influences on vco output signal 本文從波導電路的等效電路出發(fā),綜合出3mmvco基波工作時只考慮te10模的等效電路,依據(jù)此編制程序完成了振蕩器電路的分析優(yōu)化,得出了電路中各個參數(shù)對振蕩器頻率溫度穩(wěn)定度性能的影響。