李婵娟,傅世强,邵特.用于智能天线测试的低成本可调功分移相电路设计[J].电子测量技术,2016,39(4):101-104
用于智能天线测试的低成本可调功分移相电路设计
Design of a low cost adjustable power divider and phase shifter circuit for smart antenna testing
  
DOI:
中文关键词:  智能天线  Wilkinson功分器  电阻衰减器  加载线移相器
英文关键词:smart antenna  Wilkinson power divider  resistance attenuator  loaded line phase shifter
基金项目:
作者单位
李婵娟 大连海事大学 信息科学技术学院大连116026 
傅世强 大连海事大学 信息科学技术学院大连116026 
邵特 大连海事大学 信息科学技术学院大连116026 
AuthorInstitution
Li Chanjuan School of Information Science and Technology, Dalian Maritime University, Dalian 116026,China 
Fu Shiqiang School of Information Science and Technology, Dalian Maritime University, Dalian 116026,China 
Shao Te School of Information Science and Technology, Dalian Maritime University, Dalian 116026,China 
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中文摘要:
      为满足智能天线的波束赋形要求,设计一种用于微波暗室智能天线方向性测试的可调功分移相微带电路。该电路由Wilkinson功分器、π型电阻衰减器、加载线型移相器和同轴传输线级联而成。利用HFSS仿真软件优化设计了工作于TD LTE的F频段功分比1∶2∶2∶1,依次相差105°的一分四电路结构,并进行了实物加工和测试。实测结果表明,电路输入输出驻波比均小于1.3,幅度误差小于0.6 dB,相位误差小于3°。该电路结构制作成本低,幅相分配易于调整,满足测试应用需求。
英文摘要:
      In order to satisfy the requirements of smart antenna beam forming, an adjustable power splitter and phase shifter microstrip circuit has been developed for radiation pattern measurement of smart antenna in microwave anechoic. The circuit is composed of Wilkinson power divider, π type resistance attenuator, loaded line phase shifter and cascade of a coaxial transmission line. The one to four power divider and phase shifter microstrip circuit has been realized with power ratio 1∶2∶2∶1 and sequence phase difference 105 degrees in TD LTE F band. Simulation software of HFSS was used to optimize the design of the circuit. And the circuit was fabricated and measured. The measured results show that the input VSWR is less than 1.2 with the amplitude error less than 0.5 dB and the phase error less than 3°. The structure of the circuit is of low cost, and the distribution of the amplitude and phase is easy to adjust. It can meet the needs of the testing application.
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