Novel Two-Layer 4x4 SIW Nolen Matrix For Multi-beam Antenna Application In Ku Band

Conference: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
03/23/2009 - 03/27/2009 at Berlin, Germany

Proceedings: EuCAP 2009

Pages: 3Language: englishTyp: PDF

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Ali, Ahmed; Coccetti, Fabio; Aubert, Hervé (Laboratoire d’Analyse et d’Architecture des Systèmes (LAAS-CNRS) and University of Toulouse, 7 Colonel Roche avenue, 31077 Toulouse Cedex 4, France)
Fonseca, Nelson (Centre National des Etudes Spatiales (CNES), 18 Edouard Belin avenue, 31401 Toulouse, France)

A novel two-layer architecture is proposed for a 4x4 Nolen matrix in SIW technology. The matrix employs a newly developed two-layer SIW coupler offering independent control of the transmission phase and the coupling level. Simulated results show very good agreement between calculated and theoretical amplitude and phase output excitation laws with maximum amplitude error of 0.9 dB and 1.6 deg phase error, while return and isolation losses are below 16 dB at 12.5 GHz.