Manufacturing of large-sized amplitude holograms for a submm-wave CATR

A. Lonnqvist, J. Ala-Laurinaho, J. Hakli, T. Koskinen, V. Viikari, J. Saily, J. Mallat, J. Tuovinen, A.V. Raisanen
IEEE Antennas and Propagation Society International Symposium (IEEE Cat. No.02CH37313)  
An amplitude hologram is a novel alternative as the focusing element in a CATR at submm-wavelengths. The amplitude hologram can be manufactured using printed circuit board technology. However, for tests of high-gain antennas, the required size of the hologram may be several square meters. In this paper, details concerning manufacturing of the holograms and the following tests are discussed. Potential methods for manufacturing and joining of holograms are identified and measured results at 310
more » ... ed results at 310 GHz are shown.
doi:10.1109/aps.2002.1017005 fatcat:6rkqoistwbfvvdey6jde4kgxnu