We present the design, manufacturing and performance verification of the Q band feed-horn array to be employed in the focal plane of the STRatospheric Italian Polarimeter (STRIP) instrument, on board the Large Scale Polarization Explorer (LSPE) balloon experiment, funded by the Italian Space Agency (ASI). LSPE will measure the polarization of the Cosmic Microwave Background (CMB) looking for the B-modes on large angular scales. The 49 feed-horns of the STRIP instrument are arranged in seven hexagonal modules of seven elements each, built in platelets technique. Measured beam patterns of each horn are highly consistent with each other and in very good agreement with simulations, at the level of fractions of a dB up to the first side-lobe. Measured crosspolarization and return loss levels are better than -37 dB and -35 dB, respectively, on a 20% bandwidth.

Del Torto, F., Franceschet, C., Villa, F., Battaglia, P., Bersanelli, M., Cavaliere, F., et al. (2015). A 7X7 Elements Q-Band Feed-Horn Array for the LSPE-Strip Experiment. In 36th ESA Antenna Workshop on Antennas and RF Systems for Space Science. ESA Publications Division c/o ESTEC.

A 7X7 Elements Q-Band Feed-Horn Array for the LSPE-Strip Experiment

GERVASI, MASSIMO;ZANNONI, MARIO
2015

Abstract

We present the design, manufacturing and performance verification of the Q band feed-horn array to be employed in the focal plane of the STRatospheric Italian Polarimeter (STRIP) instrument, on board the Large Scale Polarization Explorer (LSPE) balloon experiment, funded by the Italian Space Agency (ASI). LSPE will measure the polarization of the Cosmic Microwave Background (CMB) looking for the B-modes on large angular scales. The 49 feed-horns of the STRIP instrument are arranged in seven hexagonal modules of seven elements each, built in platelets technique. Measured beam patterns of each horn are highly consistent with each other and in very good agreement with simulations, at the level of fractions of a dB up to the first side-lobe. Measured crosspolarization and return loss levels are better than -37 dB and -35 dB, respectively, on a 20% bandwidth.
paper
Polarization, Cosmic Microwave Bacground, Instrumentation
English
36th ESA Antenna Workshop on Antennas and RF Systems for Space Science
2015
36th ESA Antenna Workshop on Antennas and RF Systems for Space Science
2015
none
Del Torto, F., Franceschet, C., Villa, F., Battaglia, P., Bersanelli, M., Cavaliere, F., et al. (2015). A 7X7 Elements Q-Band Feed-Horn Array for the LSPE-Strip Experiment. In 36th ESA Antenna Workshop on Antennas and RF Systems for Space Science. ESA Publications Division c/o ESTEC.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/151791
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