A new method to obtain total power receiver equivalent noise temperature

被引：2

作者：

Aja, B ^{[1
]}

Pascual, JP ^{[1
]}

de la Fuente, L ^{[1
]}

Gallegos, J ^{[1
]}

Artal, E ^{[1
]}

机构：

[1] Univ Cantabria, Dept Ingn Comunicac, Santander 39005, Spain

来源：

33RD EUROPEAN MICROWAVE CONFERENCE, VOLS 1-3, CONFERENCE PROCEEDINGS | 2003年

关键词：

D O I：

10.1109/EUMA.2003.340963

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A method to obtain more accurate noise temperature of a radiometer at room temperature using commercial noise sources is presented. A low noise amplifier used in a radiometer system has an equivalent noise temperature which adds the contributions of its equivalent noise temperature at each frequency over its operating frequency range. The Y-factor has been improved and generalised to take into account the dependence with frequency of the noise source and the transfer function of a receiver. This dependence is especially relevant for broadband radiometer systems. A commercial simulator is used to validate the method and a Ka-band total power radiometer is characterized following the proposed method.

引用

页码：355 / 358

页数：4