太赫兹科学与电子信息学报, 2018, 16 (3): 369, 网络出版: 2018-07-24
140 GHz基于CPWG单平衡基波混频 GaAs集成电路
140 GHz single-balance fundamental mixer design based on CPWG GaAs IC
太赫兹 基波混频 零中频 厚基板 共面波导 terahertz fundamental mixer zero Intermediate Frequency thick substrate Coplanar Waveguide
摘要
通过在 300 μm厚度的 GaAs衬底条件下, 利用共面波导传输线实现了基波混频集成电路设计。利用半导体分析仪测试 I-U和 C-U曲线, 并成功提取了相应的肖特基二极管模型。结合建立的肖特基二极管模型, 代入 Lange耦合器、中频结构和匹配网络等实现了 140 GHz零中频基波混频片上电路, 并加入了地-信号-地 (GSG)测试封装。最终仿真结果表明: 在固定中频 1 GHz的条件下, 变频损耗最优为 -7 dB, 3 dB带宽大于 40 GHz。
Abstract
A kind of fundamental mixer integrated circuit design under thick GaAs substrate is introduced by coplanar waveguide transmission line. The I-U and C-U curves are measured by a semiconductor, and the Schottky diode model is successfully extracted. Schottky diode is modeled and the Lange coupler, Intermediate Frequency(IF) circuit and match network are designed in zero-IF 140 GHz fundamental mixer on-chip circuit. Simulation results show that under a fixed intermediate frequency of 1 GHz, the best conversion loss is 7 dB, and 3 dB bandwidth is greater than 40 GHz.
蒋均, 陆彬, 何月, 曾建平, 缪丽, 邓贤进, 张健. 140 GHz基于CPWG单平衡基波混频 GaAs集成电路[J]. 太赫兹科学与电子信息学报, 2018, 16(3): 369. JIANG Jun, LU Bin, HE Yue, ZENG Jianping, MIAO Li, DENG Xianjin, ZHANG Jian. 140 GHz single-balance fundamental mixer design based on CPWG GaAs IC[J]. Journal of terahertz science and electronic information technology, 2018, 16(3): 369.
PDF全文
