Both GDE3 and NSGA-II are applied to Yagi-Uda antenna design under specified constraints. The numerical solver used for antenna parameters calculations is SuperNEC, an object-oriented version of the numerical e
which can direct optical emission into the third dimension. We fabricate a large-area array of such nanoantennas and simulate its directivity properties, exceeding largely the values of just the single Yagi–Uda antenna. Measuring experimentally the optical spectra of the antenna ...
Furthermore, the results are qualitatively and quantitatively very close to the numerical results from FDTD calculations (see Supplementary Note 5 and Table 1) shown in Fig. 3j indicating a limit of this design around 10 dB. Fig. 3: Comparison of dipole and Yagi-Uda antennas. a–e SEM ...
The Yagi antenna or aerial sometimes called the Yagi-Uda antenna is widely used where gain and directivity are required from an RF antenna design.
Direct numerical calculations demonstrate a simple relation between λeff and λ [1, 2, 17]: Figure 2 Schematic of an optical Yagi-Uda antenna consisting of gold nanorods used for the feed, reflector and directors with the possible dimensions in comparison with the incident wavelength λ. At ...
Design of printed Yagi antenna with additional driven element for WLAN applications Version 5 now features internal ports as applied to theYagi array. Besides the degree of freedom in modeling, internal ports can improve the accuracy of Farfield calculations. ...