Research papers

The paper describes investigations and use of a reconformable reflector. Implementation is discussed for millimetre and/or sub-millimetre wave antenna configurations. The perspectives of alleviating requirements for the high-accuracy main reflector, which can be very expensive, are of great interest. This…

A frame based Gaussian beam expansion method which can be used for analysis of quasi-optical beam waveguides is presented. The method is tested for the scattered field of an ellipsoid at 321 GHz and 3.21 THz. Publication: Proceedings 13th Intl….

Two ways of modelling a compact range design are presented, and the coupling to a given antenna under test (AUT) is determined and compared to the AUT far field. The compact range models are both based on physical optics (PO)….

In this paper bolometric detectors applied in conjunction with reflector antenna feed horns that support multiple modes are studied. As an example, the preliminary design of the Planck telescope is used to calculate both the receiving pattern of the feed…

The design of a sector-beam antenna is described. The azimuth and elevation patterns are subject to stringent requirements on gain and isolation. A PO based synthesis method is applied to generate a shaped reflector surface that radiates the desired pattern…