CAJ | 학술논문

亚毫米波和太赫兹技术的发展对测试设备提出了更高的频率要求,可以采用频谱仪外接混频器的方式测量亚毫米波和太赫兹信号的频谱.基于谐波混频的原理,提出了利用较低频带的混频器测量更高频率的信号频谱的方法,试验中选用了一个 W波段的无预选器的谐波混频器,测量对象是约0.2 THz的信号,利用 Visual Basic语言编写程序对测试结果进行分析,测试结果表明这种方法切实可行.
아호미파화태혁자기술적발전대측시설비제출료경고적빈솔요구,가이채용빈보의외접혼빈기적방식측량아호미파화태혁자신호적빈보.기우해파혼빈적원리,제출료이용교저빈대적혼빈기측량경고빈솔적신호빈보적방법,시험중선용료일개 W파단적무예선기적해파혼빈기,측량대상시약0.2 THz적신호,이용 Visual Basic어언편사정서대측시결과진행분석,측시결과표명저충방법절실가행.
The developments of submillimeter wave and THz technologies demand test instruments at higher frequencies. The spectra of the submillimeter wave and THz signals can be measured using external mixing techniques. According to the theory of harmonic mixing, a method to measure the spectra of the higher frequency signal using external mixer at lower frequency is put forward. A W band mixer is selected to measure a signal whose frequency is about 0.2 THz. A Visual Basic program is used to analyse the test results. The results show that the method is effective to measure the spectra of higher frequency signal using external mixer at lower frequency.