Abstract:An important element of any waveguide-based dispositive is the termination
or load. At relatively large wavelengths the idea is to make them as compact
as possible and usually contained inside of the waveguide. However, as the
working frequency increases, the involved dimensions make more difficult such
approach. In this memo, we describe a relatively simple waveguide load which
is appropriate when the waveguide dimensions are prohibitory small. The load
described here is rather large compared with the waveguide making it relatively
easy to realize at small dimensions. Moreover, from the results of a simulation
it is shown that besides its simplicity it can have a reflectivity as low as -40 dB
if the appropriate material is used.
View a pdf version of ALMA Memo #513.
Last modified: 2005-01-27
alma-memos@nrao.edu