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

页码：203 / 206

页数：4

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