| 南敬昌,戴 涛,丛密芳,刘 超,南星伊,任建伟.可重构宽带功率放大器设计[J].电子测量与仪器学报,2023,37(9):25-32 |
| 可重构宽带功率放大器设计 |
| Reconfigurable broadband power amplifier design |
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| DOI： |
| 中文关键词: 可重构 宽带 简化实频法 误差函数 功率放大器 |
| 英文关键词:reconfigurable wideband SRFT error functions power amplifiers |
| 基金项目:国家自然科学基金面上项目(61971210)、企业合作项目资助:射频 LDMOS 功放器件研究与测试项目资助 |
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| 中文摘要: |
| 随着未来无线通信需求的增长,通信系统需适用更多的频带和标准。 针对可重构功率放大器各模式下工作带宽窄的缺
点,本文基于简化实频技术和可重构理论,提出了一种拓展可重构功率放大器工作带宽的设计方法。 通过在可重构理论中融入
简化实频法的宽带设计方法,在设计过程中加入新的误差函数,对可变模式下的可重构电路结构进行判别,进而实现可重构宽
带功率放大器设计。 为了验证该方法的有效性,并满足实际设计指标,采用中国科学院微电子研究所自主研发的 LDMOS 晶体
管设计并制作了适用于 GSM 网络和 LTE 网络的一个频率可切换的宽频可重构功率放大器。 测试结果表明,该可重构功率放大
器在不同模式下可分别工作在 0. 6~ 1. 1 GHz 和 1. 1~ 1. 6 GHz 频段,饱和输出功率超过 40 dBm,漏极效率(DE)在 50% ~ 60%之
间。 因此,本文提出的设计方法可以降低可重构宽带功率放大器的设计难度,较好的发挥晶体管性能,降低成本,在实际基站射
频电路设计中具有很好的应用意义。 |
| 英文摘要: |
| With the future wireless communication demand growth, communication systems need to apply more frequency bands and
standards. Aiming at the shortcomings of the narrow operating bandwidth of reconfigurable power amplifiers in each mode, this paper
proposes a design method to expand the operating bandwidth of reconfigurable power amplifiers based on the simplified real-frequency
technique and reconfigurable theory. By incorporating the broadband design method of simplified real-frequency method in the
reconfigurable theory, a new error function is added in the design process to discriminate the reconfigurable circuit structure in variable
modes, then realize the reconfigurable broadband power amplifier design. In order to verify the effectiveness of the method and meet the
actual design specifications, a frequency-switchable wideband reconfigurable power amplifier for GSM network and LTE network is
designed and fabricated by using LDMOS transistors independently developed by the Institute of Microelectronics, Chinese Academy of
Sciences. The test results show that the reconfigurable power amplifier can operate in the frequency bands of 0. 6 ~ 1. 1 GHz and 1. 1 ~
1. 6 GHz in different modes, respectively, with a saturated output power of more than 40 dBm, and a drain efficiency (DE) of between
50% and 60%. Therefore, the design method proposed in this paper can reduce the design difficulty of reconfigurable broadband power
amplifiers, better utilize the transistor performance, and reduce the cost, which is of great significance for application in the design of RF
circuits of practical base stations. |
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