학술논문

HERA RF and calibration system design
Document Type
Conference
Source
2017 Progress In Electromagnetics Research Symposium - Spring (PIERS) Progress In Electromagnetics Research Symposium - Spring (PIERS) , 2017. :1544-1548 May, 2017
Subject
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Geoscience
Photonics and Electrooptics
Calibration
Radio frequency
Instruments
Finite element analysis
Dipole antennas
Switches
Language
Abstract
The Hydrogen Epoch of Reionization Array (HERA) is a radio telescope dedicated to observing large scale structure during and prior to the epoch of reionization. It is a second generation instrument currently under development and concurrently being deployed in the Karoo, South Africa. This paper describes the design considerations of the new 50 Ω RF system being developed for the telescope, taking into account a number of important design factors, such as matching, noise switching and RF-over-Fibre (RFoF) technology.