Design for Array-Fed Beam-Scanning Reflector Antennas With Maximum Radiated Power Efficiency Based on Near-Field Pattern Synthesis by Support Vector Machine

A waveguide‐fed reflector antenna with high gain and multi‐beam capability demonstrated at 220 GHz

“…The gain of the reflector antenna is related to the aperture of reflectors and the irradiation efficiency of the feeding sources 35 . To obtain a high gain, an aperture size of π×80 2 mm 2 is chosen, and the geometrical relationship of the offset reflector can be expressed as: $$$\frac{{x}^{2}+{y}^{2}}{480}=z.$$$ $$${(x-100)}^{2}+{y}^{2}\le {80}^{2}.$$$…”

“…In Ref., 32 a horn-array feeder is used to obtain multiple beams. In Refs., [33][34][35][36] patch and SIW arrays are employed as feeders of the reflector antennas for beam scanning. Although these reflector antennas have good performance, there are few ones that have both the high gain and scanning capability for terahertz applications among them.…”

AI‐Assisted Design of Printed Edge‐Fed Non‐Uniform Zig‐Zag Antenna for mm‐Wave Automotive Radar

“…Therefore, the development of computationally effective synthesis methods is one of the great challenges faced by the scientific community (e.g, see Massa et al, 2018Massa et al, , 2019 and the reference therein). In the last years, design strategies based on support vector machines (Mou et al, 2022), artificial neural networks (Liu et al, 2022), effective surrogate models (Koziel & Abdullah, 2021;Koziel & Pietrenko-Dabrowska, 2020;Long et al, 2021) space mapping (Koziel et al, 2010;Zhang et al, 2018), enhanced/assisted evolutionary algorithms and SbD Oliveri et al, 2017Oliveri et al, , 2020Rosatti et al, 2023;Salucci et al, 2018Salucci et al, , 2019Salucci et al, , 2022Salucci et al, , 2023 have been successfully proposed. For instance, the SbD paradigm has proven its effectiveness in dealing with complex problems, in the framework of automotive radar, as well.…”