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设计了一种W波段二倍频器,输入为46~48 GHz,输出为92~96 GHz,用来为毫米波接收前端系统提供3 mm本振信号。二倍频器采用微带线制作,且输入和输出端口位于腔体轴向两侧,选择对脊鳍线过渡来完成波导-微带的过渡结构。采用电磁场电路设计软件ADS,大大提高了毫米波电路设计的效率和准确度。测试结果表明,在输出92~96 GHz频带范围内,倍频损耗在22 dB以内。基波和三次谐波的抑制大于24 dB。该二倍频器符合工程使用的标准,同时其设计过程也表明了计算机辅助设计在毫米波电路设计方面是非常有价值的,可以大大提高工作效率。
A W band frequency doubler was designed with inputs from 46 to 48 GHz and output from 92 to 96 GHz to provide a 3 mm LO signal for the millimeter-wave receive front-end system. The frequency doubler is made of microstrip line, and the input and output ports are located on both sides of the axial direction of the cavity. The transition of the ridge-fin line is selected to complete the waveguide-microstrip transition structure. Using electromagnetic field circuit design software ADS, greatly improving the millimeter wave circuit design efficiency and accuracy. The test results show that the frequency doubling loss is within 22 dB in the frequency band from 92 to 96 GHz. The fundamental and third harmonic suppression is greater than 24 dB. The doubler is in line with the standards used in engineering, and its design process also shows that computer-aided design is very valuable in millimeter-wave circuit design, which can greatly improve work efficiency.