Papers

Papers tagged with : EM modelling

14
Jul
2017

The traditional O(f6) computational time scaling when using Method of Moments for monostatic Radar Cross Section calculations is circumvented by applying the Multi-Level Fast Multipole...

12
Jul
2017
Co-authors:
Leri Datashvili / Jean-Christophe Angevain

Spaceborne deployable mesh reflectors are lightweight antennas made by a tensioned net supporting an RF reflecting mesh, which are deployed in orbit. The tensioned net is typically made by regular...

22
Mar
2017
Co-authors:
David Marote Alvarez, Marc Bergada, Raquel Gonzalez, Peter de Maagt

We report an RF study at 50 GHz of the Ice Cloud Imager, consisting of a parabolic reflector inside a semiclosed sun shield, as obtained with full-wave method of moments (MoM) and the asymptotic...

21
Mar
2017

The monostatic radar cross section (RCS) is an important design parameter for many applications but accurate RCS prediction of an electrically large structure continues to be a challenging task....

21
Mar
2017
Co-authors:
Raymond Dickie, Paul Baine, John Montgomery, Robert Cahill, Manju Henry, Peter G. Huggard, and Giovanni Toso

The design of an aperiodic frequency selective surface (FSS) for compact quasi-optical networks is presented in this paper. Using a newly developed Physical Optics (PO) method in conjunction with...

01
Jul
2016

A Higher-Order Multilevel Fast Multipole Method (HO MLFMM) is presented for the efficient calculation of waveguide scattering parameters in cases where several reflector feeds are mounted on...

01
Jul
2016
Co-authors:
Olav Breinbjerg

Matched feed horns aim to cancel cross polarization generated in offset reflector systems. An analytical method for predicting the mode spectrum generated by inclusions in such horns, e.g. stubs...

12
Apr
2016

This paper describes a reflectarray concept that can produce a full dual-band (transmit/receive) multiple spot beam coverage in Ka-band using only two main apertures while maintaining single-feed-...

10
Apr
2016
Co-authors:
D. Sjöberg, A. Ericsson, P. Balling, G. Gerini, N. J. G. Fonseca and P. De Maagt

This paper discusses the design and analysis of a reflector antenna system combining two doubly-curved Circular Polarization Selective Surfaces to provide a functionality equivalent to that of a...

10
Apr
2016
Co-authors:
Olav Breinbjerg

The inherently high cross polarization of prime focus offset reflector antennas can be compensated by launching higher order modes in the feed horn. Traditionally, the bandwidth of such systems is...

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