双频功率放大器与圆极化天线的直接集成设计
Integrated Design of Dual-Band Power Amplifier and Circularly Polarized Antenna
- 电子学报 2025年53卷第8期 页码：2962-2969
- 作者机构：
宁波大学信息科学与工程学院，浙江宁波 315211
- 作者简介：
[ "叶敏 女，2000年出生于江苏省宿迁市.现为宁波大学信息科学与工程学院电子信息硕士研究生.主要研究方向为射频电路、电路-天线高效集成.E-mail: 2211100166@nbu.edu.cn" ]
[ "陆云龙 男，1984年出生于浙江省湖州市.现为宁波大学电子信息科学与技术学科教授.主要研究方向为微波/毫米波电路集成与器件、天线阵列及多端口滤波网络.中国电子学会会员编号：E190033751M.E-mail: luyunlong@nbu.edu.cn" ]
[ "黄季甫 男，1960年出生于江苏省无锡市.现为宁波大学信息科学与工程学院教授.主要研究方向为微波与毫米波电路与系统、阵列天线.E-mail: huangjifu@nbu.edu.cn" ]
[ "孙立莹 女，1995年出生于山东省潍坊市.现为宁波大学信息科学与工程学院博士研究生.主要研究方向为相控阵天线、射频电路和天线高效集成.E-mail: 2201100038@nbu.edu.cn" ]
- 基金信息：国家自然科学基金(62171242);浙江省自然科学基金(LR24F010001);宁波市自然科学基金(2024J027);宁波市科创甬江2035重点研发计划项目(2025Z206)
DOI：10.12263/DZXB.20250064
中图分类号： TN917;收稿：2025-01-18，
录用：2025-07-01，
纸质出版：2025-08-25
- 稿件说明：
移动端阅览
叶敏, 陆云龙, 黄季甫, 等. 双频功率放大器与圆极化天线的直接集成设计[J]. 电子学报, 2025, 53(08): 2962-2969.
YE Min, LU Yun-long, HUANG Ji-fu, et al. Integrated Design of Dual-Band Power Amplifier and Circularly Polarized Antenna[J]. Acta Electronica Sinica, 2025, 53(08): 2962-2969.
叶敏, 陆云龙, 黄季甫, 等. 双频功率放大器与圆极化天线的直接集成设计[J]. 电子学报, 2025, 53(08): 2962-2969. DOI：10.12263/DZXB.20250064
YE Min, LU Yun-long, HUANG Ji-fu, et al. Integrated Design of Dual-Band Power Amplifier and Circularly Polarized Antenna[J]. Acta Electronica Sinica, 2025, 53(08): 2962-2969. DOI：10.12263/DZXB.20250064
摘要
本文介绍了一种高效率双频段圆极化缝隙耦合天线与氮化镓（Gallium Nitride，GaN）功率放大器（Power Amplifier，PA）的直接集成方案.通过电磁-电路协同优化，使天线输入阻抗在双频点直接与PA漏极输出的最佳负载阻抗匹配，消除传统PA输出匹配网络的插入损耗和失配损耗，在维持天线辐射性能稳定的同时有效提升系统效率.双频圆极化天线采用“I”型缝隙激励旋转式辐射贴片实现圆极化波辐射，同时可以调控天线输入阻抗特性.为验证设计的有效性，加工了工作在2.6 GHz和3.5 GHz的双频功率放大器集成天线（Power Amplifier Integrated Antenna，PAIA），并在微波暗室中进行了实验测试.测量结果表明，3 dB轴比（Axial Ratio，AR）带宽与阻抗带宽的重叠区域分别为200 MHz和300 MHz，中心频点处等效全向辐射功率（Effective Isotropic Radiated Power，EIRP）分别达到46 dBm和48.2 dBm，饱和功率附加效率（Power Added Efficiency，PAE）分别超过67%和71%，呈现出优异的整体效率和稳定的圆极化辐射特性.
Abstract
This paper presents a highly efficient dual-band circularly polarized slot-coupled antenna directly integrated with a gallium nitride (GaN) power amplifier (PA). Through electromagnetic-circuit co-optimization
the antenna input impedance is directly matched to the optimal load impedance of the PA drain output at dual frequencies
eliminating the insertion loss and mismatch loss of traditional PA output matching networks. This approach effectively enhances system efficiency while maintaining stable antenna radiation performance. The dual-band circularly polarized antenna employs an “I”-shaped slot to excite a rotating radiation patch
enabling circularly polarized wave radiation while simultaneously regulating the antenna input impedance characteristics. To validate the design
a dual-band power amplifier integrated antenna (PAIA) operating at 2.6 GHz and 3.5 GHz was fabricated and experimentally tested in an anechoic chamber. Measurement results demonstrate that the overlapping regions of the 3 dB axial ratio (AR) bandwidth and impedance bandwidth are 200 MHz and 300 MHz
respectively. The effective isotropic radiated power (EIRP) at the center frequencies reaches 46 dBm and 48.2 dBm
while the saturated power added efficiency (PAE) exceeds 67% and 71%
respectively. These results highlight the excellent overall efficiency and stable circularly polarized radiation characteristics of the proposed design.
关键词
Keywords
references
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