RPG RPG founded in 1973 Specialized in the

RPG • RPG founded in 1973 • Specialized in the design and fabrication of microwave radiometers for mm- and submm-applications (radio astronomy, plasma physics, ESR spectroscopy, network analyzer frequ. extensions, remote sensing of atmosphere, space borne radiometers) • Development of radiometer subsystems (oscillators, mixers, waveguide components, planar networks, amplifiers, optics, etc. ) RPG Radiometer Physics Gmb. H Japan Met. Agency – Tsukuba / Japan, Nov. /Dec. 2005

RPG Staff 22 Employees • Management (3) • Marketing (3) • Space Projects (6) • Electrical Engineering (8) • Electronics (4) • Mechanics (5) • Software & Retrieval Development Degrees: 4 x Dr. of Physics, 2 x Master of Physics, 5 x Diploma for Electrical Engineering / Electronics, 1 x Mechanics Master RPG Radiometer Physics Gmb. H Japan Met. Agency – Tsukuba / Japan, Nov. /Dec. 2005

RPG Machine Shop 600 m 2 machine shop RPG Radiometer Physics Gmb. H Japan Met. Agency – Tsukuba / Japan, Nov. /Dec. 2005

RPG Machine Shop • • 2 numerically controlled lathes with 1 µm precision 6 milling machines with 1 µm to 5 µm precision Electro-forming facility (feedhorns, etching of microstrip circuit boards) Spark erosion facility RPG Radiometer Physics Gmb. H Japan Met. Agency – Tsukuba / Japan, Nov. /Dec. 2005

RPG RF Lab 800 m 2 lab space RPG Radiometer Physics Gmb. H Japan Met. Agency – Tsukuba / Japan, Nov. /Dec. 2005

RPG RF Lab 12 work places for micro- controlled assembly of RF components • 5 test benches (spectrum analyzers, network analyzers, power detectors) • 8 work places in class 1000 clean room facility (200 m 2) • Electro-forming facility (feedhorns, etching of microstrip circuit boards) • Environmental chamber (-40°C to +50°C, humidity control) RPG Radiometer Physics Gmb. H Japan Met. Agency – Tsukuba / Japan, Nov. /Dec. 2005

Quality Assurance • Receiver assembly in clean room facility (class 1000) according to space qualification standards • All radiometer parts (except for MMICs and electronic parts) are fabricated inhouse • Thermal cycling of radiometer in environmental chamber (at RPG), vibration tests, burn-in RPG Radiometer Physics Gmb. H Japan Met. Agency – Tsukuba / Japan, Nov. /Dec. 2005

Examples of Products (1) Space qualified local oscillators: • 40 to 1500 GHz (all solid state) RPG Radiometer Physics Gmb. H Japan Met. Agency – Tsukuba / Japan, Nov. /Dec. 2005

Examples of Products (2) Space qualified front ends: • 183 GHz (4 channels) for sensitive water vapour detection • 90 GHz dual polarized receiver • 150 GHz dual polarized receiver RPG Radiometer Physics Gmb. H Japan Met. Agency – Tsukuba / Japan, Nov. /Dec. 2005

Examples of Products (3) Transmit / Receive Systems: • 90 GHz, 183 GHz, 220 GHz, 324 GHz, 502 GHz, 640 GHz • for compact ranges (antenna measurement facilities, phase + amplitude) RPG Radiometer Physics Gmb. H Japan Met. Agency – Tsukuba / Japan, Nov. /Dec. 2005

Examples of Products (4) Turn key radiometers for environmental research: • ice, snow, soil moisture • atmospheric profiling, statospheric water vapour RPG Radiometer Physics Gmb. H Japan Met. Agency – Tsukuba / Japan, Nov. /Dec. 2005

Examples of Products (5) 424 GHz phase locked beakon transmitter 22 channel dual profiler + dual pol. 90 GHz for cloud carthography • 95 cm Cassegrain optics • fully steerable RPG Radiometer Physics Gmb. H Japan Met. Agency – Tsukuba / Japan, Nov. /Dec. 2005

RPG Instruments for Atmospheric Remote Sensing Radiometer Models: • RPG-LWP: 23. 8 +31. 4 GHz channels for LWP and IWV monitoring, Wet/Dry Delay • RPG-LWP-U 90: Extends the RPG-LWP by a 90 GHz channel to improve LWP accuracy • RPG-TEMP 90: Tropospheric/Boundary Layer Temperature Profiler + 90 GHz channel • RPG-TEMPRO: Tropospheric/Boundary Layer Temp. Profiler • RPG-HUMPRO: Tropospheric Humidity Profiler, LWP, IWV, Wet/Dry Delay • RPG-HATPRO: Tropospheric/Boundary Layer Temp. Profiler + Tropospheric Humidity Profiler, LWP, IWV, Wet/Dry Delay • RPG-TEMP-BL: Boundary Layer Temperature Profiler based on 54. 8, 58 GHz channels • RPG-PRR: Polarized Rain Radiometer for Rain Remote Sensing, 10+19+37 GHz v/h Pol. RPG Radiometer Physics Gmb. H Japan Met. Agency – Tsukuba / Japan, Nov. /Dec. 2005