基于ADS微带短截线低通滤波器设计.docx

ADS微带短截线低通滤波器设计
摘要线通信技术的蓬勃发展,人们对个人无线通信需求不断增加,加速全球信息时代的到来成为首要任务。在现代生活中主要分为无线通信和有线通信。射频和微波的广泛使用,使有线通信得到广泛关注。微波无源器件的不断发展也使通信技术不断进步,而微带滤波器是微波电路中主要器件,在微波电路中要使用滤波器滤出不用频谱,选择合适通信道路,对电路性能有很大影响。因此设计合适的滤波器成为设计师考虑的主要问题。
由于微带电路具有小体积,频率宽,易于集成和优化等特点,成为设计师在做微波滤波器的首选。滤波的主要作用是保证让频带内的信号通过,抑制频带外的信号。由于低通滤波器结构简单,设计容易成为设计滤波器的基础。微波电路中,低通滤波器用在系统前端,使后端电路不受损坏,其陡峭衰减和宽阻带等高性能成为现今滤波器研究热点。
本文从微波滤波器在实际电路应用出发,详细介绍高性能低通滤波器设计理论。通过大量国内外文献阅读,分析,总结出微带滤波器的发展,性能优化等方法。并在文中详细介绍使用ADS设计基于理查德变换和科洛达规则理论的微带短截线低通滤波器。
关键词:微带低通滤波器, ADS,宽阻带,无线通信
MicrostripStub LowpassFilter Design Based On ADS
AbstractWith the rapid development of munication technology, the demand for personal munications continues to increase and accelerate the advent of the global information age has e a top priority. In modern life is divided into wireless and munications. Widespread use of RF and microwave, so munication received extensive attention. The continuous development of microwave ponents also munication technology continues to progress, and microstrip filter is a microwave circuit ponents in microwave circuits using a filter to filter out without spectrum, select the munication path, the circuit performance is greatly influences. Therefore, the design of suitable filter designer considered a major problem.
Since the microstrip circuit having a small size, wide frequency range, ease of integration and optimization features, a designer doing microwave filter of choice. The main role is to ensure that the signal filtering by band, band signal suppression. Due to the simple low-pass filter structure, design is easy to e the basis of the design of the filter. Microwave circuits, the low-pass filter is used in front of the system, so that the rear end of the circuit from damage, its steep attenuation and wide stopband other high-performance filter es hot topic nowadays.
This article from the microwave filter, in actual circuit applications departure, details of high-performance low-pass filter design theory. Through a lot of literatur