Arrays & Radomes

Open-End Waveguide Array Antenna

WIPL-D Pro offers easy parametric modelling and fast simulation of waveguide structures in general, with purely metallic structures requiring a very low number of unknowns and allowing efficient analysis. The capabilities of the tool are demonstrated in this application note for simulation of an array antenna with a large number of waveguide open-end elements. Owing to efficient modelling using canonical BoR objects, simulations were carried out with a very low number of unknowns. The hardware platform is an everyday work PC or laptop, without the need for expensive hardware. Usage of two symmetry planes yields simulation time in seconds per frequency point, ensuring practical and reliable efficiency for routine design and analysis.

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Series-fed Travelling Wave Patch Array

A detailed convergence study of the series-fed travelling wave patch array is presented. Simulations were performed at 77 GHz in the WIPL-D Software suite, a full 3D EM method-of-moments tool. The 10-element patch array was carefully investigated for return loss with high absolute accuracy, including finite metallization thickness (18 µm) and realistic coaxial feeding mechanism setup. Thanks to WIPL-D’s efficient EM solver, simulations run under 10 seconds on a standard desktop or laptop, allowing multiple studies of important EM effects. The array demonstrates high-frequency behavior and modern real-life application, and the WIPL-D team successfully showed beam squint by displaying the radiation pattern at three selected frequencies.

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