A 220-GHz Third-Harmonic Mixer Based on Balanced Structure and Hybrid Transmission Line
A 220-GHz Third-Harmonic Mixer Based on Balanced Structure and Hybrid Transmission Line
复制标题
基于平衡结构和混合传输线的220GHz三次谐波混频器
DOI：
10.1109/access.2019.2910170
复制
发表时间：
2019-04
期刊：
影响因子：
3.9
通讯作者：
XiaoDong Chen
中科院分区：
文献类型：
--
作者：
DongFeng Ji;Bo Zhang;YiLin Yang;ZhongQian Niu;Yong Fan;XiaoDong Chen
提出了一种基于平衡结构和同向二极管对的新型220 GHz三次谐波混频器，该混频器采用波导-鳍片-共面波导-微带线混合传输线作为载波电路。混合传输线的设计允许混频信号在正确的方向输入，以实现三次谐波混频。然后，通过平衡结构的模式正交性实现射频(RF)端口和本地振荡器(LO)端口之间的高度隔离。鳍线上的金属槽作为射频信号的匹配网络，使射频信号能够以低损耗进入二极管对。实验测试结果表明，在210~230 GHz频率范围内，三次谐波混频器的转换损耗优于18.5分贝，且在较宽的中频范围内波动较小。
This paper proposes a novel 220-GHz third-harmonic mixer, which using a waveguide-fin-coplanar waveguide-microstrip line hybrid transmission line as the carrier circuit, based on the balanced structure and the co-directional diode pair. The hybrid transmission line is designed to allow the mixing signals to be input in the correct direction in order to achieve the third-harmonic mixing. Then, high isolation between the radio-frequency (RF) port and the local oscillator (LO) port is performed through the mode orthogonality of the balanced structure. The metal slots on the fin line are used as the matching network for the RF signal to enable the RF signal into the diode pair with low loss. The experimental test results show that the conversion loss of the third-harmonic mixer is better than 18.5 dB in the range of 210–230 GHz and has a tiny fluctuation in the broad range of intermediate frequency (IF).