Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of BE445549ApublicationCriticalpatent/BE445549A/xx
H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
H01Q13/02—Waveguide horns
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
H01P5/00—Coupling devices of the waveguide type
H01P5/04—Coupling devices of the waveguide type with variable factor of coupling