Cryogenic 2-13 GHz Eleven feed for reflector antennas in future wideband radio telescopes
Journal article, 2011

The system design of a cryogenic 2-13 GHz feed is considered with emphasis on its application in future wideband radio telescope systems. The feed is based on the so-called Eleven antenna and the design requires careful integration of various sub-designs in order to realize cryogenic operation. The various sub-designs include the electrical design of the Eleven antenna, design of the critical center puck, alternative solutions for integrating the Eleven antenna with low-noise amplifiers (LNAs), mechanical and cryogenic design and tests, and system noise temperature estimation and measurements. A great deal of simulated and measured results are presented throughout this paper, including the electrical, mechanical and cryogenic performance, and an assessment of the system noise temperature. The objective of this work is to present a good feed candidate that is well-suited for VLBI2010 and SKA radio telescopes. Further developments needed to completely fulfill the requirements for these future wideband radio telescopes are also discussed.

Author

Jian Yang

Chalmers, Signals and Systems, Communication and Antenna Systems, Antennas

Miroslav Pantaleev

Chalmers, Earth and Space Sciences, Onsala Space Observatory

Per-Simon Kildal

Chalmers, Signals and Systems, Communication and Antenna Systems, Antennas

Benjamin Klein

Hartebeeshoek Radio Astronomy Observatory

Yogesh Karandikar

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Leif Helldner

Chalmers, Earth and Space Sciences, Onsala Space Observatory

Niklas Wadefalk

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

C. Beaudoin

Massachusetts Institute of Technology (MIT)

IEEE Transactions on Antennas and Propagation

0018-926X (ISSN)

Vol. 59 6 1918-1934 5723714

Areas of Advance

Information and Communication Technology

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/TAP.2011.2122229

More information

Latest update

9/3/2018 3