双频带可重构功率放大器设计

冀常鹏; 张凯威; 南敬昌

doi:10.12265/j.cjors.2021207

双频带可重构功率放大器设计

doi: 10.12265/j.cjors.2021207

辽宁工程技术大学电子与信息工程学院, 葫芦岛 125105

基金项目: 国家自然科学基金项目(61971210)；辽宁特聘教授项目(551806006)

详细信息

作者简介:
冀常鹏：（1970—），男，黑龙江人，教授，硕士生导师，主要研究方向为信号检测与估计、精确定位导航等

张凯威：（1995—），男，河南人，硕士研究生，主要研究方向为射频无线通信

南敬昌：（1971—），男，河南人，博士，教授，硕士生导师，主要研究方向为射频电路与器件、多媒体信息编码、通信系统仿真等

通讯作者:
张凯威 E-mail:897385470@qq.com

中图分类号: TN722
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- 被引次数: 0
出版历程
- 收稿日期: 2021-08-06
- 录用日期: 2022-03-21
- 网络出版日期: 2022-03-21

Design of dual-band reconfigurable power amplifier

School of electronics and information engineering, Liaoning Technical University, Huludao Liaoning 125105, China

摘要

摘要: 为解决5G无线通信系统中频谱资源日益紧张的问题，提出了一种新颖的双频带可重构电路结构. 该结构在输出匹配上使用PIN开关控制支路的工作状态，可完成不同工作波段的切换. 首先，基于宽带滤波器理论设计了输入匹配，实现了1.5~4.5 GHz的良好匹配；然后使用LC谐振理论和π等效，将集总电路转化为分布电路，优化了电路在高频处的性能；最后，设计并制作了一种部分覆盖L、S和C波段的可重构功率放大器. 测试结果表明，在1.50~2.85 GHz时输出功率大于39.5 dBm，功率附加效率（power added efficiency，PAE）高于39.5%；在3.15~4.50 GHz输出功率大于38.1 dBm，PAE大于43.5%. 测试结果满足设计要求，验证了理论的正确性. 该结构综合了可重构和宽带技术的优点，对无线通信系统未来的发展有着重要的意义.
- 功率放大器 /
- 双频带 /
- 宽带匹配电路 /
- 可重构 /
- ADS仿真
Abstract: In order to solve the problem of increasingly tight spectrum resources in the 5G wireless communication system, a novel dual-band reconfigurable circuit structure is proposed. This structure uses PIN switchs to control the working state of the branch in the output matching, and completes the switching of different working bands. Then, the input matching is designed based on the wideband filter theory, and a good matching within 1.5−4.5 GHz is achieved. Using the LC resonance theory and π equivalent, the lumped circuit is converted into a distributed circuit so that the circuit is optimized at high frequency. A reconfigurable power amplifier which partly covers the L, S and C bands is designed and manufactured. The test results show that output power is greater than 39.5dBm and PAE is higher than 39.5% at 1.50−2.85 GHz, output power is greater than 38.1 dBm and PAE is greater than 43.5% at 3.15−4.50 GHz. The test results meet the design requirements and verify the correctness of the theory. This structure combines the advantages of reconfigurable and broadband technology which is of great significance to the future development of wireless communication systems.
- power amplifier /
- dual band /
- broadband matching circuit /
- reconfigurable /
- ADS simulation

HTML全文

图 1 双频带可重构功放整体结构

Fig. 1 The overall structure of the reconfigurable dual-band power amplifier

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图 2 微带结构PIN开关电路结构

Fig. 2 Microstrip PIN switch circuit structure

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图 3 PIN开关S参数仿真图

Fig. 3 Simulation results of the S parameter of PIN switch

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图 4 三阶低通滤波器

Fig. 4 Third-order low-pass filter

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图 5 三阶带通滤波器

Fig. 5 Third-order bandpass filter

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图 6 Norton转换原理

Fig. 6 Norton conversion principle

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图 7 Norton转换后的宽带匹配网络

Fig. 7 Broadband matching network after Norton transformation

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图 8 两次Norton转换后的匹配网络

Fig. 8 Matching network after two Norton conversions

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图 9 宽带网络分布参数模型

Fig. 9 Distribution parameter diagram of broadband network

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图 10 输入匹配仿真结果

Fig. 10 Simulation results of input matching

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图 11 可重构宽带匹配电路

Fig. 11 Reconfigurable broadband matching circuit

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图 12 功放输出匹配仿真图

Fig. 12 Simulation diagram of Power amplifier output matching

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图 13 双频带可重构功放整体电路图

Fig. 13 The overall circuit diagram of the reconfigurable dual-band power amplifier

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图 14 功放实物图

Fig. 14 Photograph of the fabricated PA

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图 15 双频带可重构功放仿真与实测对比

Fig. 15 Comparison of simulation and actual measurement of multi-band reconfigurable power amplifier

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表 1 可重构输出匹配网络工作情况

Tab. 1 Network work of reconfigurable output matching

频率/GHz	开关情况	工作情况
1.50~2.85	1、2开，3、4、5关	上半部分
3.15~4.50	1、2关，3、4、5开	下半部分

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表 2 可重构功放性能比较

Tab. 2 Performance comparison of reconfigurable power amplifiers

文献	工作频段（点）/GHz	增益/dB	输出功率/ dBm	PAE /%
[12]	1.8~2.7 2.7~3.4	7.2~11.2	42.3~43.9 42.2~43.7	45~62.3 36.7~48.5
[18]	1.7~2.7 3.1~3.9	10~12 8.9~9.9	38.1~38.7 37.1~38.9	未给出
[19]	0.9/1.8	>10.5	>38.5	>57.9
本文	1.50~2.85 3.15~4.50	9~13.3 8.5~13.6	39.3~41.5 38.4~41.6	39.5~60.9 43.5~58.3

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