前端电路 meaning in Chinese
front-end circuit
Examples
- Based on the results of the theory analysis and computer simulation of suspended stripline low pass filter , band pass filter , the transition from waveguide to finline and the transition from waveguide to suspended stripline , the structure design and manufacture were made . the measured results match the requirement . different from the traditional mixers used in the domestic communications satellites , the sub - harmonic balance mixer type was used in the ka - band mixer design
在ka频段混频器的研究过程中，通过对卫星和飞船所用到的混频器进行研究，在对ka波段的传统射频前端电路的分析基础上，提出改变以往星上传统的基波混频方案，采取了次谐波混频方案，降低了本振频率，简化了本振链路，使噪声特性、可靠性获得改善。 - In view of the importance of rf front - end circuits in the receiver system , the paper finally is focused on the analysis and design of the rf front - end circuits , including the design of low noise amplifier ( lna ) , microstrip filter and balanced mixer . all the circuits above are simulated individually using ansoft serenade , and the results are satisfying with the desired performance
考虑到射频前端电路性能的好坏会直接影响到整机的性能，文中还重点论述了该接收机射频前端电路的分析和设计，主要包括低噪声放大器、微带滤波器和单平衡混频器的理论分析和实际设计，并在ansoftserenade环境下进行了模拟仿真，仿真结果符合设计要求。 - Finally , a ku - band receiver combined with lna , mixer and filter is designed , and a complete flow chart for the design process of the front - end circuit is given . in the end , some rf transceiver examples such as microwave power transfer system , satellite communication receiver system and phs cell station system are introduced and analyzed
最后结合前面各章内容，给出了一个ku波段射频前端接收机完整设计实例，并给出了包含微波无线供电系统、卫星接收机和phs基站在内的多个射频前端电路的实例分析。 - This test divides four chapters : the first chapter introduces the basic concept and development conditions of the software defined radio ; the second one discusses the key technique of the software defined radio , its technique challenges and the resolve . the third one discusses the 3g rtt and the apply of the software defined radio in the 3g rtt ; the fourth one studies the application of the software defined radio architecture that based on the dsp to realize the base band disposal module of the terminal in the 3g then the test presents a kind of gsm / td - scdma terminal architecture and analyses the circuit of the front part , then it also analyses the resource need . moreover , it also presents the hardware architecture of the td - scdma base band module and the flow of the software arithmetic . it also analyses the realization of the module key arithmetic , finally it brings forward some points that should be paid much attention in realizing the module
本文分为四章：第一章介绍了软件无线电的基本概念、发展状况；第二章研究了软件无线电的关键技术及所面临的技术上的挑战和解决办法；第三章探讨了第三代移动通信技术中的无线接入以及软件无线电在其中的应用；第四章研究了应用基于dsp的软件无线电技术来实现第三代移动通信终端的基带处理模块，并分析了其前端电路，然后对它的资源需求做了分析，给出了td - scdma基带模块的硬件结构和软件算法流程，对模块的关键算法的实现进行了分析，最后提出了实现模块应当注意的几个问题。 - Then this paper deals with the design and realization of the smart - antenna receiver system architecture . and the receiver is divided into four modules , including rf front - end module | , if demodulation module , analog to digital conversion module and frequency synthesis module
随后在此基础上，对应用于w - cdma系统智能天线接收机进行了系统设计分析，并给出了实现方案，主要包括射频前端电路模块、中频解调电路模块，参考频率合成电路模块和数模、模数转换电路模块四部分的设计与实现。