Computer generated phase holograms (kinoforms) for millimeter and submillimeter wavelengths |
| |
Authors: | Stellan Jacobsson Anders Lundgren and Joakim Johansson |
| |
Institution: | (1) Department of Applied Electron Physics, Chalmers University of Technology, S-412 96 Göteborg, Sweden;(2) Department of Radio & Space Science, Chalmers University of Technology, S-412 96 Göteborg, Sweden |
| |
Abstract: | Computer generated Fourier transform phase holograms, known as kinoforms, have been synthesized, manufactured and their performance evaluated at a wavelength of 3 mm (100 GHz). The kinoforms were synthesized to give a prescribed far-field intensity distribution and manufactured by milling the computed kinoform surface relief into a Teflon plate, using a numerically controlled milling machine. The measured diffraction efficiencies exceed 50 percent. Millimeter-wave kinoforms can be used in various quasi-optical applications,e.g. distributing a local oscillator signal to an array of detector elements in heterodyne receivers. |
| |
Keywords: | Kinoform phase hologram quasi-optical millimeter wave |
本文献已被 SpringerLink 等数据库收录! |
|