Elastic wave element and elastic wave filter device

An elastic wave element comprising:

• a piezoelectric substrate;
• an IDT electrode provided on the piezoelectric substrate and including a first comb-shaped electrode and a second comb-shaped electrode, the first comb-shaped electrode and the second comb-shaped electrode facing each other;
• and
• a reflector provided on the piezoelectric substrate and disposed adjacent to the IDT electrode in an elastic-wave propagation direction;
• wherein
• the reflector includes a first reflective busbar electrode, a second reflective busbar electrode, and a plurality of reflective electrode fingers;
• the first reflective busbar electrode and the second reflective busbar electrode extend in the elastic-wave propagation direction and face each other;
• the plurality of reflective electrode fingers are connected to the first reflective busbar electrode and the second reflective busbar electrode and extend in an orthogonal or substantially orthogonal direction to the elastic-wave propagation direction;
• the first comb-shaped electrode includes a first busbar electrode and a plurality of first electrode fingers;
• the first busbar electrode extends in the elastic-wave propagation direction and is connected to the first reflective busbar electrode;
• the plurality of first electrode fingers are connected to the first busbar electrode and extend in the orthogonal direction;
• the second comb-shaped electrode includes a second busbar electrode and a plurality of second electrode fingers;
• the second busbar electrode extends in the elastic-wave propagation direction and is connected to the second reflective busbar electrode;
• the plurality of second electrode fingers are connected to the second busbar electrode and extend in the orthogonal direction;
• a connecting electrode is provided in an in-between area that is an area in which a reflective electrode finger among the plurality of reflective electrode fingers faces a first electrode finger among the plurality of first electrode fingers;
• the reflective electrode finger is adjacent to the first electrode finger in the elastic-wave propagation direction;
• the connecting electrode electrically couples the reflective electrode finger to the first electrode finger.