Research Project
Grant-in-Aid for Challenging Exploratory Research
In order to realize the cost-down in making a high precision antenna panel for receiving shorter millimeter wave, we examined the accuracy of the surface of antennas made by metal spinning method. Using an existing mold we could attain a surface accuracy as well as 60 micron r. m. s. easily. As the results, we found that the surface accuracy depends mainly on the accuracy of the mold. If we can use a higher precision mold in metal spinning, the more accurate the antenna surface will become. The surface accuracy will reach as well as r.m.s. 30 micron level if we use such a new mold. The surface accuracy of the metal spinning antenna maintained within the 2 years of our research period. Because the metal spinning antenna is very thin, the surface can be deformed easily by adding force non-uniformly. In practical use, a supporting structure of the antenna surface is very important to maintain the high accuracy of the surface.
All 2013 2012 2011 Other
All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (11 results) Book (4 results)
ApJ
Volume: 768
http://stacks.iop.org/2041-8205/768/L38
New Astronomy
Volume: 17 Pages: 553-564
Volume: 17 Issue: 6 Pages: 553-564
10.1016/j.newast.2012.01.002
