The utility model belongs to the technical field of electronic components, and discloses a band-pass filter based on through-hole structure as the main resonator, which is provided with copper-coated metal, PCB multi-layer plate and through-hole; the copper-coated metal is embedded on the front and back sides of PCB multi-layer board, and is connected with PCB multi-layer board, showing through-hole structure, and the through-hole PCB multi-layer board is copper-coated metal through-hole. The utility model adopts the microstrip line design with distributed parameters of the centralized circuit, which can make full use of the electrical connection characteristics of the through-hole structure in the upper and lower multilayer circuit board, improve the transmission performance of the filter, optimize the interconnection of the multilayer board to reduce the circuit size, realize the advantages of miniaturization of the radio frequency circuit and low production cost in large quantities. It is especially suitable for the corresponding microwave communication, digital radar, military and civil multi-mode and multi-channel communication system terminals, wireless communication handheld terminals, and the corresponding systems which have strict requirements on weight, performance and reliability.
【技术实现步骤摘要】
一种基于过孔结构为主体谐振器的带通滤波器
本技术属于电子元件
,尤其涉及一种微波领域中过孔结构的滤波多通带特性以及采用一种基于过孔结构为主体谐振器设计制作出带通滤波器。
技术介绍
目前,业内常用的现有技术是这样的:采用微带线直线连接设计制作微带线滤波器,遵循基本步骤有指标分析和结构规划,且通过在连接处输入输出强耦合方式提高滤波器性能的同时减小了电路尺寸。带通滤波器是指能通过某一频率范围内的频率分量、但将其他范围的频率分量衰减到极低水平的滤波器,与带阻滤波器的概念相对。随着市场对电子产品小型化、高密度、高性能和多功能的需求,电路的集成度越来越高,传统的封装技术很难满足需要,能够将各种无源电子器件组成的电子系统整合到传统的封装基板内的系统级封装技术已经成为未来的重要发展趋势。在传统的电路中很多都有谐振电路,以及利用谐振电路构成的带通滤波器,其中低温共烧陶瓷(LTCC)和微带线是两种最主要的滤波器制作技术,双模滤波器是利用微扰使一个谐振器的两个简并模发生相互耦合而产生频率分离,产生两个谐振峰,类似于一个双调谐电路,或者是两个级联的单模谐振器响应。但是由于所用的介质 ...
【技术保护点】
1.一种基于过孔结构为主体谐振器的带通滤波器,其特征在于,所述基于过孔结构为主体谐振器的带通滤波器设置有:敷铜金属、PCB多层板和通孔;所述敷铜金属嵌装在PCB多层板1的正面和方面,与PCB多层板1呈过孔结构。
【技术特征摘要】
1.一种基于过孔结构为主体谐振器的带通滤波器,其特征在于,所述基于过孔结构为主体谐振器的带通滤波器设置有:敷铜金属、PCB多层板和通孔;所述敷铜金属嵌装在PCB多层板1的正面和方面,与PCB多层板1呈过孔结构。2.如权利要求1所述的基于过孔结构为主体谐振器的带通滤波器,其特征在于,所述敷铜金属包括上下层...
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。