Highly Integrated Switching Calibration Front-End MMIC with Active Loads for W-Band Radiometers

被引：0
|
作者：
Weissbrodt, Ernst [1 ]
Leuther, Arnulf [1 ]
Schlechtweg, Michael [1 ]
Kallfass, Ingmar [1 ]
Ambacher, Oliver [1 ]
机构：
[1] Fraunhofer Inst Appl Solid State Phys IAF, Tullastr 72, D-79108 Freiburg, Germany
来源：
2012 7TH EUROPEAN MICROWAVE INTEGRATED CIRCUITS CONFERENCE (EUMIC) | 2012年
关键词：
active loads; ACL; AHL; radiometer; calibration; W-band; GaAs; MMIC; mHEMT; FET-switch; SP5T; SCFE;
D O I：
暂无
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 millimeter-wave monolithic integrated circuit (MMIC) consisting of a W-band (75 - 100 GHz) single-pole-five-throw (SP5T) switch and multiple internal active and passive loads for radiometer calibration was designed and manufactured in a low noise 50 nm GaAs mHEMT technology. This highly compact and integrated front-end device for radiometer systems is capable of fast ultra-fast switching between two identical input ports (e.g. for polarimetric applications) and three internal calibration references. It allows an accurate multi-load calibration with noise temperatures between 220 K and 1750 K at the output of the device. Compared to conventional calibration methods this marks a substantial advantage in terms of size, mass, power consumption, complexity and repetition rate.
引用
收藏
页码：203 / 206
页数：4
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