Future Cosmic Microwave Background polarisation experiments will require large detector arrays to achieve the required sensitivity for precise measurements. New cost- and time-effective techniques are required for mass production of high performance passive components. We present electromagnetic test results on an assembly of feed horn and OMT prototypes, operating in the W-band and fabricated by means of 'platelet' technique. The good level of isolation and return loss (respectively >45 dB, >30 dB on 20% bandwidth) for both polarizations are in agreement with numerical simulations, indicating good matching between components. Radiation patterns are also in agreement with simulations, with cross-polarization level < -30 dB on a 20% bandwidth. These results confirm the good design, manufacturing and assembling of the prototypes.
A platelet W-band feed horn-OMT assembly / F. Del Torto, M. Bersanelli, C. Franceschet, O.A. Peverini, A. Simonetto, R. Tascone, G. Virone - In: Proceedings of the 2013 International conference on electromagnetics in advanced applications, ICEAA 2013 : Torino, Italy, 9-13 September 2013Piscataway (New Jersey) : IEEE, 2013 Sep. - ISBN 9781467357074. - pp. 939-941 (( Intervento presentato al 15. convegno International conference on electromagnetics in advanced applications (ICEAA) tenutosi a Torino nel 2013 [10.1109/ICEAA.2013.6632377].
A platelet W-band feed horn-OMT assembly
F. Del TortoPrimo
;M. BersanelliUltimo
;C. FranceschetSecondo
;
2013
Abstract
Future Cosmic Microwave Background polarisation experiments will require large detector arrays to achieve the required sensitivity for precise measurements. New cost- and time-effective techniques are required for mass production of high performance passive components. We present electromagnetic test results on an assembly of feed horn and OMT prototypes, operating in the W-band and fabricated by means of 'platelet' technique. The good level of isolation and return loss (respectively >45 dB, >30 dB on 20% bandwidth) for both polarizations are in agreement with numerical simulations, indicating good matching between components. Radiation patterns are also in agreement with simulations, with cross-polarization level < -30 dB on a 20% bandwidth. These results confirm the good design, manufacturing and assembling of the prototypes.File | Dimensione | Formato | |
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