Details

Autor(en) / Beteiligte

• Kemppainen, S.
• Lemmetyinen, J.
• Auer, T.
• Colliander, A.
• Aalto, A.
• Rautiainen, K.
• Hallikainen, M.

Titel

Thermal stabilized front-end PCB with active cold calibration load for L-band radiometer

Ist Teil von

• 2007 IEEE International Geoscience and Remote Sensing Symposium, 2007, p.4433-4436

Ort / Verlag

IEEE

Erscheinungsjahr

2007

Link zum Volltext

• IEEE_Xplore

Quelle

IEEE Electronic Library (IEL)

Beschreibungen/Notizen

• In this paper, the thermally stabilized front-end of an L-band total power receiver is presented. Applications on the L-band have become one of the most important focus points in the field of passive microwave remote sensing. Measuring environmental parameters such as ocean salinity and soil moisture remain a challenge, posing strict requirements to instrument performance. For traditional radiometers, especially the stability of front-end components is critical. The principle of the stabilization technique and the actual design are described. The design also features an on-board active cold load for calibration purposes. The presented technique aims to stabilize the front-end section PCB with heaters to sub 0.05 C level.