FREQUENCY-SEPARATION FILTER Russian patent published in 1997 - IPC

FIELD: radio engineering, communication devices. SUBSTANCE: device has strip resonator which is shaped as part of ellipse. Its edge part which follows ellipse function is longer than maximal wavelength of passed electromagnetic signals. It is connected to pieces of wedge-shaped strip lines. Rest of edge is shaped as parts of beams which connect points of frequency-selection focusing of separated electromagnetic signals and first focus of elliptical part to ends of edge part which follows ellipse function. Output strip lines are connected to sector-shaped transformers which forward signals to points of frequency-selective focusing of separated electromagnetic signal. Said points are located on axis of part of ellipse. Input strip line is connected to first focus of part of ellipse. EFFECT: increased functional capabilities. 2 dwg