[1]周寿根,孙敏松.21厘米全固态反馈辐射计[J].东南大学学报(自然科学版),1981,11(3):38-44.[doi:10.3969/j.issn.1001-0505.1981.03.005]
 Zhou Shou-gen,Sun Min-song.A 21cm Feedback Radiometer of All Solid State[J].Journal of Southeast University (Natural Science Edition),1981,11(3):38-44.[doi:10.3969/j.issn.1001-0505.1981.03.005]
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21厘米全固态反馈辐射计()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
11
期数:
1981年第3期
页码:
38-44
栏目:
本刊信息
出版日期:
1981-09-20

文章信息/Info

Title:
A 21cm Feedback Radiometer of All Solid State
作者:
周寿根孙敏松
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Author(s):
Zhou Shou-gen Sun Min-song
关键词:
微波辐射计 接收机 等效噪声温度 噪声源 微波集成电路 地物波谱特性 反馈回路 微波晶体管放大器 稳定性 二极管
分类号:
+
DOI:
10.3969/j.issn.1001-0505.1981.03.005
摘要:
本文讨论了一种适用于研究地物波谱特性的反馈辐射计。为了消除增益变化的影响,将接收机和易受漂移影响的元件接入反馈回路,改善了系统的稳定性。还分析了系统的原理和设计,叙述了微波集成电路,给出了校正曲线和实地观察的实验数据。该设备的输出噪声起伏均方值达0.35°K±0.1°K。
Abstract:
A microwave feedback radiometer used for research on microwave characteristics of various materials is discussed in this paper. The receiver circuit and components which are easily influenced by drift are connected to a feedback network in order to eliminate the effect of the change of gain. Thus the stability of the radiometer is improved. The principle and design of the system are analysed; microwave integrated circuits arc described. A-calibration curve and experimental data are given in the paper. Output noise fluctuation (r. m. s) of the equipment is 0.35°K_+0.1°K.

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 Wu Bo-xin.A Duplexer with Directional Filter Used in 1GHz Communication System: Analysis of its Properties and Determination of its Specifications[J].Journal of Southeast University (Natural Science Edition),1981,11(3):24.[doi:10.3969/j.issn.1001-0505.1981.03.004]

更新日期/Last Update: 2013-05-01