PROBLEM TO BE SOLVED: To eliminate the need of a balun for antenna characteristic degradation prevention by connecting a reflection element disposed separately from a radiation element for the specified wavelength of a using center frequency wavelength to an outer conductor at the position of the ...
Hence, even though the antenna is often called a Yagi antenna, Uda probably invented it. A picture of Professor Yagi with a Yagi-Uda antenna is shown below.In the next section, we'll explain the principles of the Yagi-Uda antenna.
(8.5 dBd). The front-to-back ratio is 73 dB; this is part of the quantity that the optimizer maximizes. The optimized Yagi-Uda antenna has an E-plane beamwidth of 56 deg, which is the same as the datasheet. The H-plane beamwidth of the optimized Yagi-Uda antenna is 72 deg, ...
In order to fabricate such a Yagi-Uda antenna, we first studied the individual elements separately and matched their optical properties (resonance position and width) to our models by slight adjustments of the fabricated geometry. In Fig. 2f–j, SEM images and associated scattering spectra of the...
The Yagi-Uda antenna, information on basic geometry, project and measure of Yagi-Uda antenna, include free repository/sample of not-tested beam antenna.
Slot-type magnetic-dipole nanoantennas, which are complementary structures of typical electric-dipole-type antennas, have received little attention, leaving their antenna properties largely unexplored. Here we present a novel magnetic-dipole-fed multi-slot optical Yagi-Uda antenna. By engineering the ...
The demonstration of a Yagi–Uda nano-antenna that operates at visible wavelengths gives hope for a convenient means of directing radiation patterns from nanoscale light sources such as single molecules and quantum dots. This is a preview of subscription content, log in via an institution to check...
Antenna Theory - End-fire Array Antenna Theory - Parasitic Array Yagi-Uda Antenna Theory Log-periodic Antenna Theory Turnstile Antenna Theory Wave Propagation Antenna - Spectrum & Transmission Antenna - Types of Propagation Antenna - Lonosphere & its Layers Terms in Wave Propagation Antenna Theory Use...
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