61results about How to "Enough bandwidth" patented technology

The invention discloses a compact broadband differential band pass filter. The band pass filter comprises a pair of half-wavelength coupling microstrip lines, two pairs of feed lines, a central microstrip line, and two pairs of capacitors; the half-wavelength coupling microstrip lines are arranged side by side, the perpendicular bisectors of the half-wavelength coupling microstrip lines are overlapped, and a bar-shaped slit is formed between the half-wavelength coupling microstrip lines; the two pair of feed lines are arranged corresponding to the pair of half-wavelength coupling microstrip lines, each pair of feed lines is connected to the two ends of the corresponding half-wavelength coupling microstrip line, and the two pairs of the feed lines are symmetrically distributed in the two sides of the perpendicular bisector of the half-wavelength coupling microstrip lines; the central microstrip line is connected between the half-wavelength coupling microstrip lines and symmetric by taking the perpendicular bisector of the half-wavelength coupling microstrip lines as the center; and the two pairs of capacitors are loaded between the half-wavelength coupling microstrip lines, and symmetrically arranged in the two sides of the half-wavelength coupling microstrip lines. The filter is simple in structure, smaller in size, sufficient in bandwidth and extremely low in loss.