小型化带通滤波器与多功能滤波电路的研究
发布时间：2019-07-04 14:47
【摘要】：随着无线通信的发展,人们希望终端设备能够小型化而且能尽量兼容多个通信协议,同时电能消耗要尽量小,这就要求电路的尺寸也要尽量小。因此选择性好、体积小及易于加工成了滤波器这一通信系统中的重要组成部分的基本要求。同时多频滤波器和电调滤波器也因其能减小电路体积而获得了大量的关注。设计多功能电路也是一个可以减小电路尺寸和损耗的方法,近来这类设计也逐渐兴起。本文主要是基于小型化带通滤波器及多功能滤波电路设计,具体研究内容分为以下三个部分:1、基于单枝节加载的单频、多频、电调滤波器,包括基于枝节线中心加载的两端开路谐振器,并利用选择性耦合所设计的毫米波滤波器;基于短路单枝节线中心加载的两端开路谐振器所设计的三通带滤波器;基于变容二极管中心加载的两端短路的谐振器所设计的低通带可调而高通带固定的电调滤波器。文章首先分析谐振器的谐振模式,然后使用仿真软件进行全波仿真。仿真和测试结果的一致性验证了所提出的方法的可行性。其内容成果已经在期刊Micorwave and Optical Technology Letters和国际会议IEEE International Wireless Syposium上发表。2、基于多枝节加载的多频带通滤波器。根据奇偶模的原理,提出了多个新型的多模谐振器。同时经过理论分析发现这些模式都可以方便地控制,因此可以用来设计多通带滤波器。这些电路包括一个四模谐振器,其被用来设计频率和带宽都可控的双通带滤波器;一个六模谐振器,其被用来设计频率和带宽都可控的三通带滤波器;一个八模谐振器,其被用来设计可以覆盖5G Wi Fi频段的三通带滤波器。这些研究果已经在IEEE Transactions on Microwave Theory and Techniques,IEEE Microwave and Wireless Component Letters上发表。3、带有滤波效果的功分器和功放。其中滤波功分器包括一个基于集总元件的滤波功分器,一个电调滤波功分器和一个双频的滤波功分器,其中前面两个是首次提出。滤波功放电路是将滤波器当做阻抗变换器植入到功放的输出匹配电路中,使得功放在保持高效率的同时带有滤波响应。这些研究成果已经在IEEE Microwave and Wireless Component Letters等期刊上发表。
文内图片：![1(a)采用选择性耦合的滤波器结构；(b)仿真和测试结果[1]](http://image.cnki.net/getimage.ashx?id=1015987683.nh0002)
图片说明：1(a)采用选择性耦合的滤波器结构；(b)仿真和测试结果[1]
[Abstract]:With the development of wireless communication, it is desired that the terminal device can be miniaturized and compatible with a plurality of communication protocols as much as possible, while the power consumption is to be as small as possible, which requires that the size of the circuit be as small as possible. Thus the selectivity is good, the volume is small, and the basic requirements of the important components in the communication system of the filter are easily processed. At the same time, the multi-frequency filter and the electric-modulation filter are also subject to a large amount of attention due to the fact that the circuit volume can be reduced. The design of a multi-function circuit is also a way to reduce the size and loss of the circuit, which has recently emerged. This paper is based on the small-size band-pass filter and the multi-function filter circuit design, and the specific research contents are divided into the following three parts:1. Single-frequency, multi-frequency and electric-tone filter based on single-branch section loading, including two-end open-circuit resonators loaded on the center of the branch line, and a three-way band filter designed by the two-end open-circuit resonator loaded at the center of the short-circuit single-branch section line is utilized; A low pass band adjustable and high-pass band-fixed electrical tuning filter designed based on a resonator with two-end short-circuit loaded at the center of the varactor diode. First, the resonant mode of the resonator is analyzed, and the simulation software is used for full-wave simulation. The consistency of the simulation and test results verifies the feasibility of the proposed method. The results of the content have been published in the journal Micorwave and Optical Technology Letters and International Conference, IEEE International Wireless Symposium.2. Multi-band pass filters based on multi-branch-section loading. According to the principle of the parity mode, a plurality of novel multi-mode resonators are proposed. At the same time, it is found that these modes can be easily controlled through the theoretical analysis, so it can be used to design the multi-pass band filter. these circuits include a four-mode resonator that is used to design a dual-pass band filter that is both frequency and bandwidth controllable; a six-mode resonator that is used to design a three-way band filter that is both frequency and bandwidth controllable; an eight-mode resonator, It is used to design a three-way band filter that can cover the 5G Wi-Fi frequency band. These studies have been published in IEEE Transactions on Microwave Theory and Techniques, IEEE Microwave and Wireless Component Letters.3. Power divider with filtering effect and power amplifier. The filter power divider comprises a filter power divider based on a lumped element, an electric tone filter power divider and a double-frequency filter power divider, wherein the front two are first proposed. The filter power amplifier circuit is used as an impedance converter to be implanted into the output matching circuit of the power amplifier, so that the work is kept high and the filtering response is carried out at the same time. The results have been published in the IEEE Microwave and Wireless Component Letters.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN713
本文编号：2509995
文内图片：
图片说明：1(a)采用选择性耦合的滤波器结构；(b)仿真和测试结果[1]
[Abstract]:With the development of wireless communication, it is desired that the terminal device can be miniaturized and compatible with a plurality of communication protocols as much as possible, while the power consumption is to be as small as possible, which requires that the size of the circuit be as small as possible. Thus the selectivity is good, the volume is small, and the basic requirements of the important components in the communication system of the filter are easily processed. At the same time, the multi-frequency filter and the electric-modulation filter are also subject to a large amount of attention due to the fact that the circuit volume can be reduced. The design of a multi-function circuit is also a way to reduce the size and loss of the circuit, which has recently emerged. This paper is based on the small-size band-pass filter and the multi-function filter circuit design, and the specific research contents are divided into the following three parts:1. Single-frequency, multi-frequency and electric-tone filter based on single-branch section loading, including two-end open-circuit resonators loaded on the center of the branch line, and a three-way band filter designed by the two-end open-circuit resonator loaded at the center of the short-circuit single-branch section line is utilized; A low pass band adjustable and high-pass band-fixed electrical tuning filter designed based on a resonator with two-end short-circuit loaded at the center of the varactor diode. First, the resonant mode of the resonator is analyzed, and the simulation software is used for full-wave simulation. The consistency of the simulation and test results verifies the feasibility of the proposed method. The results of the content have been published in the journal Micorwave and Optical Technology Letters and International Conference, IEEE International Wireless Symposium.2. Multi-band pass filters based on multi-branch-section loading. According to the principle of the parity mode, a plurality of novel multi-mode resonators are proposed. At the same time, it is found that these modes can be easily controlled through the theoretical analysis, so it can be used to design the multi-pass band filter. these circuits include a four-mode resonator that is used to design a dual-pass band filter that is both frequency and bandwidth controllable; a six-mode resonator that is used to design a three-way band filter that is both frequency and bandwidth controllable; an eight-mode resonator, It is used to design a three-way band filter that can cover the 5G Wi-Fi frequency band. These studies have been published in IEEE Transactions on Microwave Theory and Techniques, IEEE Microwave and Wireless Component Letters.3. Power divider with filtering effect and power amplifier. The filter power divider comprises a filter power divider based on a lumped element, an electric tone filter power divider and a double-frequency filter power divider, wherein the front two are first proposed. The filter power amplifier circuit is used as an impedance converter to be implanted into the output matching circuit of the power amplifier, so that the work is kept high and the filtering response is carried out at the same time. The results have been published in the IEEE Microwave and Wireless Component Letters.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN713
【共引文献】
相关期刊论文 前2条
1 李好;肖中银;储君君;刘洋;徐晓雪;马全问;;新型开路短路枝节加载三频带通滤波器[J];上海大学学报(自然科学版);2014年02期
2 陈涛;杨涛;杨自强;刘文豹;;一种具有谐波抑制的电可调功分器[J];应用科技;2014年04期
相关硕士学位论文 前2条
1 王小妹;高性能多频带微波滤波器设计与研究[D];华东交通大学;2014年
2 蒋浩;面向通信系统应用的多频带滤波器/天线研究[D];华东交通大学;2015年
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