FILTER ON SURFACE ACOUSTIC WAVES Russian patent published in 2009 - IPC H03H9/54 

FIELD: physics, radio.

SUBSTANCE: invention is related to radio electronics, in particular, to frequency selective facilities, and may be used in devices of radio signal frequency selection. Grounded bus of double-mode resonator communication is arranged in the form of meander, at that value of intersection between neighbouring pins (aperture W) periodically changes, taking two values: W₁ (minimum) and W₂ (maximum). Since interaction between symmetrical and antisymmetrical modes in this case is more intense than in prototype, filter passband is increased up to 0.15%.

EFFECT: increase of relative passband.

8 dwg