ka band造句

• Chapter six realizes the ka band 0 - pm t / r component on the basis of above - mentioned function parts
  第六章在前述各个功能部件的基础上实现了ka波段0 -调相收发组件。
• On the basis of introducing microwave components and parts basic theories in detail , this text develops ka band 0 - pm t / r component
  本文在详细介绍微波元器件基本理论的基础上,研制了ka波段0 -调相收发组件,完成了组件的正样设计。
• Based on those and the practical needs of some projects , the thesis mainly focuses on two different kind millimeter mixers : a ka band mixer and an ehf band mixer
  根据以上分析和应用项目的实际需要，最后本文集中于对两种混频器的研制：一种ehf频段混频器；一种ka频段混频器。
• So the low price , small bulk and high performance of front - end rf become more and more important . in this dissertation , a ka band multiplier chain is developed , which can be used for local oscillator
  低价的、小型的、高性能的射频收发前端的开发显得越来越重要，本论文所研究的课题是ka波段倍频链，要求把2ghz的信号倍增至36ghz 。
• The dissertation mainly researches the ka band single pole triple throw switches . two kinds of pin switches are discussed in theory , simulation and experiment , the simulation results and test results are all included
  对pin开关的理论,分析方法,模型的建立以及实际电路的制作等方面进行了一定的研究,实际制作了微带、鳍线两种单刀三掷pin开关。
• 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
  本文设计了ka波段矩形波导到微带探针过渡结构以及背对背结构,测试结果表明,在35 40ghz频率范围内,其插入损耗和回波损耗都比较小。
• The paper analyzes in detail the characteristics of this circuit in the aspect of locking range improvement and its merits in the aspect of phase noise , and designs the ilpll circuit in the form of ka band cavity structure and verifies its characteristics
  文章详尽分析了此电路在展宽带宽方面的特性和相噪的优越性,设计了ka波段腔体结构形式的ilpll电路并验证了其特性。
• In the active circuit part , based on the theories of multiplier of srd and fet , we have designed the circuit of x band 6 multiplier and ka band tripler . then they are simulated and optimized using harmonic balance method . furthermore , the results of optimization and experiments are analyzed
  在有源电路部分，我们介绍了阶跃管、 fet倍频器的基本原理，在此基础上分别设计了两个倍频器电路，然后利用谐波平衡法进行了仿真，并对仿真、测试结果作出了比较。
• The antenna is obtained by extending the longitudinal strip of the fin - line , and etched on a metallized dielectric substrate . it is operating at ka band ( center frequency : 34ghz ) , which has a good agreement between simulated and measured results . its e - and h - plane 3db main lobe beamwidth are 79 . 25 and 80 . 03 degrees respectively with sidelobes less than - 10db
  天线工作的中心频率为34ghz , e面和h面测试方向图主瓣宽度分别为79 . 25o和80 . 03o ,旁瓣电平均小于- 10的db ,仿真和试验结果基本一致,所设计天线的各项指标经测试基本达到要求。
• For the operating frequencies of modern radars and guidance 、 electronic countermeasure system 、 communication system 、 remote sense and remote measurement system expand to millimeter band step by step , the operating frequencies of t / r module raise ceaselessly . simultaneity millimeter wave t / r module which has the advantages of small dimension , lightweight , wide band is more suitable to the requirement of modern army and communication system . this paper is mainly referred to the research of t / r module in ka band
  现代雷达与制导、电子对抗、通信、遥感遥测系统的工作频率已逐步由微波波段扩展到毫米波波段,因此t / r组件的工作频率也在不断的上升,同时,毫米波t / r组件与微波t / r组件相比具有尺寸小、重量轻、频带宽等优点,更适合现代军事和通信系统的要求。
• The some fire control system is an advanced multi - senor short range air defense system , which integrated both x and ka bands searching and tracking radars , laser range finder , combined the control computer of subsystem with the master computer , and applied the technology of data fusion
  摘要某火控系统集两个频率波段的搜索雷达、跟踪雷达和电视跟踪器、激光测距机于一体，分系统控制处理计算机与系统主计算机相结合，采用了数据融合技术，是一部多传感器集成的现代化防空系统，具有搜索性能好、反应时间快、抗干扰能力强、自动化程度高、使用性能好等特点。
• In order to adapt the development from the mpm to the mmpm , this paper has done some exploringly research on the milli - meter wave equalizer and proposed a circuit template that can carry the power equalizer in ka band out . this thesis has proved the feasibility of realizing the milli - meter wave power equalizer used this circuit template by the way of computer simulation and experiment , and finally concludes a useful method for designing the milli - meter wave power equalizer
  为了适应微波功率模块mpm向毫米波功率模块mmpm的进一步发展,本论文对毫米波功率均衡器进行了探索性的研究,提出了一种在ka波段实现功率均衡器的电路拓扑,并用计算机仿真和实验证明了此种拓扑结构实现毫米波功率均衡器的可行性,最终归纳出一种切实可行的毫米波功率均衡器的设计方法。
• At home , in the later of 1970s , prof . liu shenggang began the research on electron cyclotron maser , and later , the group leaded by prof . li hongfu has done much research work on gyrotron also , and successfully developed a first ka band third harmonic gyrotron oscillator with a permanent magnet system . and later , they have began the research on a kind of gyrotron amplifier - gyroklystron
  在国内，中国电子科技大学在70年代后期，刘盛纲院士开辟了回旋脉塞器件的研究方向，以后李宏福教授带领下的课题组也对回旋管进行了大量研究工作，并在“九?五”期间，成功地研制出了世界上第一支8mm三次谐波永磁包装回旋管。
• Thus , the better phase noise can be obtained by adjusting the loop wave filtering . through experimental verification , the locking range of the designed ka band ilpll circuit is 2 . 5 times to 9 times widened and the phase noise , compared to that without feedback loop , is reduced by 4dbc @ 1khz and the noise can be reduced by adjusting the loop wave filtering and
  经过实验验证,设计的ka波段ilpll电路的锁定带宽拓展了2 . 5倍以上,最大处达到9倍左右;相噪与开环注锁相比降低了4dbc @ 1khz ,且可以通过调节环路滤波和注入功率来降低噪声。
• The major job is manufactured a transmitter , which has three upmixer channels . its function is to up convert the signals from c - band to ka - band . the input local oscillator is provided by a low frequency crystal oscillator which has a good performance of phase noise , through 512 times multiply to ka band . this sysetem is used in the laboratory as transmitter source of the fuze , for the multidimensional objects in practise , which lead to the complexity of the reflect signal , so the amplitude , frequency and the phase of the transmit signals both have a key role in dealing with the reflection signals . therefore , this system requires for both the coherence of the single channel ’ s amplitude , phase and multi channels
  本文的主要工作是应用户要求制作一具有三发射通道的上变频系统,可以将c波段的微波信号上变频到ka波段的毫米波信号。系统的本振输入基频由一相位噪声非常好的低频率晶振提供,经过512次的倍频放大至ka波段。本系统作为实验室中引信的发射源,由于目标反射信号具有时变的多维性,反射信号变得极为复杂,在信号处理时,不仅信号幅值、频率有决定意义而且相位关系也很有决定意义。