Analysis of Resonant Characteristics of E- And H-Plane Waveguide Junctions With Local Dielectric Inclusions

Multiparameter Control of Energy Characteristics of Waveguide-Cavity Resonator-Slot Radiators

“…It is known from the classical theory of slot radiators and coupling holes [20] that a single slot in the side wall of a rectangular waveguide cannot radiate (transmit) more than half of the input power. An increase in the value of the radiation (transmission) coefficient can be carried out by placing other resonant elements in the waveguide, for example, vibrators (dipoles) [21] or dielectric inserts [22]. As shown by the calculations performed in the article, the placement of a rectangular resonator between the coupling slots and the radiating slot also leads to a significant increase the radiation coefficient value (up to ~0.9) in a narrow wavelength (frequency) band.…”

“…Currently, in the antenna-waveguide technology of millimeter and centimeter wavelengths, slotted radiators in flat and spherical surfaces are widely used as feeds for highly directional mirror and lens antennas [1][2][3][4][5], elements of inphase and scanning antenna arrays [6][7][8][9][10][11][12][13][14][15][16][17][18][19], as well as devices connections of electrodynamic volumes [20][21][22]. Single slotted radiators are characterized by a significant broadband, which in conditions, for example, of a complex electromagnetic environment, can lead to disruption of the operation of radio electronic systems (RES).…”