红外与毫米波学报2025，Vol.44Issue(2)：184-191,8.DOI:10.11972/j.issn.1001-9014.2025.02.006
基于线性优化法设计的高输出功率340GHz平衡式二倍频器
A high output power 340 GHz balanced frequency doubler designed based on linear optimization method
摘要
Abstract
In this paper,a linear optimization method(LOM)for the design of terahertz circuits is presented,aimed at enhancing the simulation efficacy and reducing the time of the circuit design workflow.This method en-ables the rapid determination of optimal embedding impedance for diodes across a specific bandwidth to achieve maximum efficiency through harmonic balance simulations.By optimizing the linear matching circuit with the op-timal embedding impedance,the method effectively segregates the simulation of the linear segments from the non-linear segments in the frequency multiplier circuit,substantially improving the speed of simulations.The design of on-chip linear matching circuits adopts a modular circuit design strategy,incorporating fixed load resistors to simplify the matching challenge.Utilizing this approach,a 340 GHz frequency doubler was developed and mea-sured.The results demonstrate that,across a bandwidth of 330 GHz to 342 GHz,the efficiency of the doubler re-mains above 10％,with an input power ranging from 98 mW to 141mW and an output power exceeding 13 mW.Notably,at an input power of 141 mW,a peak output power of 21.8 mW was achieved at 334 GHz,correspond-ing to an efficiency of 15.8％.关键词
线性优化法/三维电磁场模型/谐波阻抗优化/肖特基平面二极管/太赫兹二倍频器Key words
linear optimization method(LOM)/three-dimensional electromagnetic model(3D-EM)/Harmonic impedance optimization/Schottky planar diode/Terahertz frequency doubler分类
电子信息工程引用本文复制引用
刘志成,周静涛,孟进,魏浩淼,杨成樾,苏永波,金智,贾锐..基于线性优化法设计的高输出功率340GHz平衡式二倍频器[J].红外与毫米波学报,2025,44(2):184-191,8.基金项目
Supported by the Beijing Municipal Science&Technology Commission(Z211100004421012),the Key Reaserch and Development Pro-gram of China(2022YFF0605902) （Z211100004421012）
