物理与工程2025，Vol.35Issue(6)：35-40,6.
以黑体辐射与天线噪声温度为例的大学物理与专业课程衔接研究
A STUDY ON THE CONNECTION BETWEEN UNIVERSITY PHYSICS AND PROFESSIONAL COURSES:TAKING BLACKBODY RADIATION AND ANTENNA NOISE TEMPERATURE AS AN EXAMPLE
李智强 1张介秋 1王伟宇 1李磊 1闫明宝 1范琦1
作者信息
- 1. 中国人民解放军空军工程大学基础部,陕西 西安 710051
- 折叠
摘要
Abstract
This paper investigates the connection between college physics courses and profes-sional courses related to radio communication.First,it reviews the historical development of thermal noise research,clarifies the origin of the concept of noise temperature,and provides a general definition of noise temperature.Next,taking the antenna as an electromagnetic wave transducer,it derives the quantitative expression for the antenna thermal noise power spectral density by combining the theory of blackbody radiation with Kirchhoff's law of thermal radia-tion.Based on revealing the physical mechanism of antenna thermal noise,the paper elabo-rates on the logical construction and physical connotations of the concept of antenna noise tem-perature.Teaching practice has shown that integrating the above ideas into teaching deepens students'understanding of the relevant physical knowledge.This study aims to deepen students'understanding of the blackbody radiation theory in college physics courses and pro-vide a reference for the teaching of radio communication professional courses.By extending the basic physical theory to the field of radio communication,it demonstrates the bridging role of basic physics courses in the curriculum system,which is conducive to cultivating students'interdisciplinary comprehensive literacy and innovative thinking abilities.关键词
课程衔接/黑体辐射/天线热噪声/噪声温度/功率谱密度Key words
course connection/blackbody radiation/antenna thermal noise/noise tempera-ture/power spectral density引用本文复制引用
李智强,张介秋,王伟宇,李磊,闫明宝,范琦..以黑体辐射与天线噪声温度为例的大学物理与专业课程衔接研究[J].物理与工程,2025,35(6):35-40,6.
