Corrugated horn design for HFI on PLANCK

Details Corrugated horn design for HFI on PLANCK Corrugated horn design for HFI on PLANCK

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aipc..616..282m&link_type=abstract

EXPERIMENTAL COSMOLOGY AT MILLIMETRE WAVELENGTHS: 2K1BC Workshop. Breuil-Cervinia, Valle d'Aosta, Italy, 9-13 July, 2001. Edit

Physics

6

Radio Telescopes And Instrumentation, Heterodyne Receivers, Spaceborne And Space Research Instruments, Apparatus, And Components, Submillimeter

Scientific paper

In this paper we report on the back-to-back corrugated feed horn design for the High Frequency Instrument on the PLANCK Surveyor. Special single moded Gaussian profiled horns have been developed for the 4 lowest frequency channels (100 GHz, 150 GHz, 217 GHz & 353 GHz). These feed structures produce very pure Gaussian radiation patterns with sidelobe levels reduced well below -30 dB. Similar few moded horn antennas are being proposed for the highest frequency channels (545 GHz and 850 GHz) to give non-diffraction limited performance with high throughput. The modelling of the horns uses a rigorous electromagnetic mode matching technique that is found to give good agreement with measurement. .

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