Evaluation of Mutual Coupling in Integrated Lens Array Antennas
A. Nair (TU Delft - Tera-Hertz Sensing)
S.O. Dabironezare (TU Delft - Tera-Hertz Sensing)
A. Neto (TU Delft - Tera-Hertz Sensing)
N. Llombart (TU Delft - Tera-Hertz Sensing)
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Abstract
Future applications in sensing and communications at (sub)-millimetre wavelengths will benefit from having large integrated coherent arrays. The use of lens arrays will enable the fabrication of integrated antenna front-ends with many potential independent beams as well as dynamic scanning capabilities. For applications such as MIMO communications, interferometric arrays and Tx/Rx duplexing capabilities, a key design parameter can be the mutual coupling between the integrated antenna front-ends. In this contribution we model such mutual coupling for lens antenna arrays using Geometrical Optics technique combined with a bidirectional forward ray-tracing. The validation of the methodology against full wave simulations is also presented here.