A microstrip filter direct-coupled amplifier based on active coupling matrix synthesis

Yang GAO; Fan ZHANG; Yingying QIAO; Jiawei ZANG; Lei LI; Xiaobang SHANG

doi:10.1631/FITEE.2000292

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A microstrip filter direct-coupled amplifier based on active coupling matrix synthesis

Regular Papers | Updated：2022-05-19

- A microstrip filter direct-coupled amplifier based on active coupling matrix synthesis
- 基于有源耦合矩阵的一种微带直接耦合式滤波放大器
- Frontiers of Information Technology & Electronic Engineering Vol. 22, Issue 9, Pages: 1260-1269(2021)
- Affiliations：
  
  School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
  School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
  CTTL-System Laboratory, China Academy of Information and Communications Technology, Beijing 100191, China
  National Physical Laboratory, Teddington TW11 0LW, UK
- Author bio：
  
  [ "Yang GAO, E-mail: gaoyang678@outlook.com" ]
  Lei LI, E-mail: lilei@zzu.edu.cn
- Funds：
- DOI：10.1631/FITEE.2000292
  CLC： TN454
- Received：16 June 2020，
  
  Revised：2021-;8-31，
  
  Published：2021-09
- Accepted：
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Yang GAO, Fan ZHANG, Yingying QIAO, et al. A microstrip filter direct-coupled amplifier based on active coupling matrix synthesis[J]. Frontiers of Information Technology & Electronic Engineering, 2021, 22(9): 1260-1269.
DOI：

Yang GAO, Fan ZHANG, Yingying QIAO, et al. A microstrip filter direct-coupled amplifier based on active coupling matrix synthesis[J]. Frontiers of Information Technology & Electronic Engineering, 2021, 22(9): 1260-1269. DOI： 10.1631/FITEE.2000292.

摘要

提出一种基于有源耦合矩阵的微带集成滤波放大器的设计理论。通过消除匹配结构，微带滤波器可直接与放大器耦合，同时实现滤波和匹配功能。通过引入附加的行和列表示有源晶体管，该放大器的拓扑结构可用耦合矩阵综合和表达。该有源耦合矩阵可用于计算S参数（回波损耗和增益）和集成器件的初始物理尺寸。该集成设计方法有效降低了电磁波损耗，并且使器件结构更为紧凑。由于微带线易加工、低成本、易于与有源器件集成等优点，本文设计、加工并测量了基于微带线工艺的X波段放大器。

Abstract

This paper presents a methodology of designing an amplifier integrated with a microstrip filter using an active coupling matrix. The microstrip filter is directly coupled to the active device

and the integrated filter amplifier can achieve filtering as well as matching functionalities

simultaneously

eliminating the need for separate matching networks. The filter amplifier is represented by an active coupling matrix

with additional columns and rows in the matrix corresponding to the active transistor. The matrix can be used to calculate the S-parameter responses (i.e.

the return loss and the gain) and the initial dimensions of the integrated device. Moreover

the integration of a filter and an amplifier leads to a reduced loss and a more compact architecture of the devices. An X-band microstrip filter amplifier has been designed and demonstrated as an example. Microstrip technology has been chosen because of its appealing advantages of easy fabrication

low cost

and most importantly

easy integration with active devices.

关键词

Keywords

references

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