Title :
Spline-profile smooth-walled horn as a feed of the multi-beam millimetre focal plane array
Author :
Popenko, N. ; Chernobrovkin, R. ; Khaikin, V. ; Nakhimovich, M. ; Granet, C.
Author_Institution :
Usikov Inst. for Radiophys. & Electron., Nat. Acad. of Sci. of Ukraine, Kharkov, Ukraine
Abstract :
In this paper simulated and measured characteristics of an optimized smooth-walled spline-profile horn for two-dimensional multibeam focal plane array at RATAN-600 radio telescope are presented. The measured -10 dB beamwidth is less than 45° in the H-and E-planes. The measured side-lobe levels of the radiation pattern are less than -18 dB in the both principal planes. The measured input reflection coefficient is better than -21dB in the frequency range 30 GHz - 38 GHz. The experimental results are in good agreement with simulated ones in the operational frequency band 34 GHz - 38 GHz.
Keywords :
antenna radiation patterns; focal planes; horn antennas; radiotelescopes; RATAN-600 radio telescope; frequency 30 GHz to -38 GHz; frequency 34 GHz to -38 GHz; multibeam millimetre focal plane array; radiation pattern; reflection coefficient; side-lobe level; spline-profile smooth-walled horn; Australia; Feeds; Frequency; Optical arrays; Optical distortion; Optical receivers; Radio astronomy; Sensor arrays; Spline; Telescopes;
Conference_Titel :
MELECON 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference
Conference_Location :
Valletta
Print_ISBN :
978-1-4244-5793-9
DOI :
10.1109/MELCON.2010.5475948
