Mathias Fredrixon
Mathias är med och utvecklar mottagare för radioastronomi till teleskopen på Onsala, ALMA-teleskopet samt APEX-teleskopet, där han är med både i utveckling, tillverkning samt tester.
I GARD-gruppen är Mathias bland annat ansvarig för framtagning av CAD-modeller, ritningar samt kontakt med mekaniska verkstäder.
Hans första uppdrag på Chalmers var satellitprojektet ODIN. Satelliten sköts upp 2001, från Ryssland.
Arbetet i GARD-gruppen innefattar allt från att programmera och utföra mätningar i labbet till att installera mottagare för radioastronomi på 5100 meters höjd över havet i Chilenska Anderna i Sydamerika.
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Visar 37 publikationer
A Broad-Band Dual-Polarization All-Metal Dichroic Filter for Cryogenic Applications in Sub-THz Range
Vacuum-Seal Waveguide Feedthrough for Extended W-Band 67-116 GHz
SEPIA345: a dual polarization 2SB cartridge receiver for APEX telescope: Design and Performance
ALMA Band 2 Cold Cartridge Assembly Design
SEPIA345: a dual polarization 2SB cartridge receiver for APEX telescope: Design and Performance
ALMA Band 2 Receiver Automated Test System
SEPIA345: A 345 GHz dual polarization heterodyne receiver channel for SEPIA at the APEX telescope
A broadband and dual-polarization single-layer dichroic filter for applications in Sub-THz range
Wideband 67-116 GHz receiver development for ALMA Band 2
New optics for SEPIA- Heterodyne facility instrument for the APEX telescope
A 1mM SIS receiver utilizing different intermediate frequency (IF) configurations
ALMA Band 5 receiver cartridge: Design, performance, and commissioning
SEPIA - A new single pixel receiver at the APEX telescope
Broken-step Phenomenon in SIS Mixers
A new 3 mm band receiver for the Onsala 20 m antenna
Dual Band MM-Wave Receiver for Onsala 20 m Antenna
Performance of the First ALMA Band 5 Production Cartridge
Performance of the first ALMA Band 5 production cartridge
Design and performance of ALMA band 5 receiver cartridge
Advanced Technologies for Radio Astronomy Instrumentation
Integrated Setup for THz Receiver Characterization
Design and Performance of ALMA Band 5 Receiver Components
ALMA band 5 cartridge performance
Terahertz Instrumentation For Radio Astronomy
A 1.3-THz Balanced Waveguide HEB Mixer for the APEX Telescope
Optics Design and Verificatgion for the APEX Swedish Heterodyne Facility Instrument (SHeFI)
Prototype ALMA Band 5 Cartridge:Design and Performance
A Swedish heterodyne facility instrument for the APEX telescope
Optics Design and Verification for the APEX Swedish Heterodyne Facility Instrument (SHeFI)
APEX Band T2: A 1.25 – 1.39 THz Waveguide Balanced HEB Receiver
Molecular oxygen in the p Ophiuchi cloud
Facility Heterodyne Receiver for the Atacama Pathfinder Experiment Telescope
A 0.8 mm heterodyne facility receiver for the APEX telescope
A 279-381 GHz SIS Receiver for the APEX Telescope
A Gaussian Beam Measurement Range for mm and Sub-mm Receivers
Measurement Results of Gaussian Beam Verification for HIFI Instrument of Herschel Space Observatory
The Odin satellite - I. Radiometer design and test
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