Data di Pubblicazione:
2012
Citazione:
CORRUGATED FEED-HORN ARRAYS FOR FUTURE CMB POLARIZATION EXPERIMENTS / F. Del Torto ; tutor: M. Bersanelli ; co-tutor: F. Villa. UNIVERSITA' DEGLI STUDI DI MILANO, 2012 Jul 18. 24. ciclo, Anno Accademico 2011. [10.13130/del-torto-francesco_phd2012-07-18].
Abstract:
This work presents the design realization and performance of a 7-element prototype array of corrugated feedhorns
in W-band. The module is fabricated using a so-called “platelet” technique by milling Aluminum
plates. This technique is suitable for low-cost and scalable high performance applications.
Room temperature Return Loss measurements show a low (<-30 dB) reflection over a 20% bandwidth
with a maximum matching of -40 dB at 105 GHz for all seven antennas. Beam pattern measurements
indicate good repeatability and a low (-30 dB) sidelobe levels.
This work is particularly relevant for future Cosmic Microwave Background polarisation measurements,
which require large microwave cryogenic detector arrays coupled to high performance corrugated
feed horns.
Tipologia IRIS:
Tesi di dottorato
Keywords:
CMB polarization ; feedhorn ; Microwave antennas
Elenco autori:
F. DEL TORTO
Link alla scheda completa:
Link al Full Text: