70 citations · 191 across the 4 of their papers we have counts for
4 papers
Atmospheric Refractive Electromagnetic Wave Bending and Propagation Delay
Jeffrey G. Mangum, Patrick Wallace
In this tutorial we summarize the physics and mathematics behind refractive electromagnetic wave bending and delay. Refractive bending and delay through the Earth's atmosphere at b…
Mechanical Measurements of the ALMA Prototype Antennas
A. Greve, J. G. Mangum
The specifications of the Atacama Large Millimeter Array (ALMA) have placed stringent requirements on the mechanical performance of its antennas. As part of the evaluation process…
Near-Field Radio Holography of Large Reflector Antennas
J. W. M. Baars, R. Lucas, J. G. Mangum +1
We summarise the mathematical foundation of the holographic method of measuring the reflector profile of an antenna or radio telescope. In particular, we treat the case, where the…
Evaluation of the ALMA Prototype Antennas
Jeffrey G. Mangum, Jacob W. M. Baars, Albert Greve +4
The ALMA North American and European prototype antennas have been evaluated by a variety of measurement systems to quantify the major performance specifications. Nearfield holograp…