Broadband terahertz quadruple harmonic mixer circuit, mixer and method

• Main Authors: WANG MO, ZHANG SHENGZHOU, DENG JIANQIN, XIN HAIMING, JIANG WANSHUN, CHEN ZHUO, NIAN FUSHUN, ZHU XIANG, JIA DINGHONG
• Format: Patent
• Language: Chinese; English
• Published: 06.11.2020
• Subjects: BASIC ELECTRONIC CIRCUITRY; DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER; ELECTRICITY

The invention provides a broadband terahertz quadruple harmonic mixing circuit, mixer and method. The broadband terahertz quadruple harmonic mixing circuit comprises a radio frequency signal couplingtransmission unit, a nonlinear device, a local oscillator filter, a local oscillator signal coupling transmission unit and an intermediate frequency filtering unit which are connected in sequence, thelocal oscillator filter further comprises a radio frequency input port, a local oscillator input port and an intermediate frequency output port, the radio frequency input port is connected with the radio frequency signal coupling transmission unit, the local oscillator input port is connected with the local oscillator signal coupling transmission unit, the intermediate frequency output port is connected with the output end of the intermediate frequency filtering unit, and the local oscillator filter is of a two-stage cascaded filter structure; according to the invention, the problem of realizing low frequency conversi