Elastic wave device and communication device

The utility model relates to an elastic wave device and a communication device. The elastic wave device comprises a first longitudinal coupling resonator, a second longitudinal coupling resonator, a first grounding terminal and a second grounding terminal. The first longitudinal coupling resonator and the second longitudinal coupling resonator are connected in series. The first longitudinal coupling resonator comprises at least two IDT electrodes. Wherein at least one IDT electrode is connected to the first ground terminal, and a second longitudinally coupled resonator including a first groundterminal to which at least one IDT electrode is connected, and a second ground terminal to which the other IDT electrodes are connected, the second longitudinally coupled resonator including at leasttwo IDT electrodes, at least one IDT electrode being connected to the first ground terminal, and the other IDT electrodes being connected to the second ground terminal. The elastic wave device provided by the utility model ca