Lamb wave delay line
AssigneeSkyworks Solutions, Inc.
InventorsSiarhei Dmitrievich Barsukou, Rei Goto, Hiroyuki Nakamura
Life of this patent
Estimating the term…
Abstract
A delay line for radio frequency circuits comprises a piezoelectric substrate, a transmission single phase unidirectional transducer (SPUDT) disposed on the piezoelectric substrate, and a receive SPUDT disposed on the piezoelectric substrate and separated from the transmission SPUDT in a direction of transmission of a main acoustic wave mode utilized by the transmission SPUDT.
Claims17
A delay line for radio frequency circuits, the delay line comprising:
- a piezoelectric substrate;
- a transmission single phase unidirectional transducer (SPUDT) disposed on the piezoelectric substrate;
- and
- a receive SPUDT disposed on the piezoelectric substrate and separated from the transmission SPUDT in a direction of transmission of a main acoustic wave mode utilized by the transmission SPUDT, directivity of the transmission SPUDT and the receive SPUDT being such that the transmission SPUDT and the receive SPUDT, when excited, produce main acoustic waves having greatest amplitudes travelling toward one another.
A radio frequency device including a delay line comprising:
- a piezoelectric substrate;
- a transmission single phase unidirectional transducer (SPUDT) disposed on the piezoelectric substrate;
- and
- a receive SPUDT disposed on the piezoelectric substrate and separated from the transmission SPUDT in a direction of transmission of a main acoustic wave mode utilized by the transmission SPUDT, directivity of the transmission SPUDT and the receive SPUDT being such that the transmission SPUDT and the receive SPUDT, when exited, produce main acoustic waves having greatest amplitudes travelling toward one another.
A delay line for radio frequency circuits, the delay line comprising:
- a piezoelectric substrate;
- a transmission single phase unidirectional transducer (SPUDT) disposed on the piezoelectric substrate;
- and
- a receive SPUDT disposed on the piezoelectric substrate and separated from the transmission SPUDT in a direction of transmission of a main acoustic wave mode utilized by the transmission SPUDT, the transmission SPUDT and the receive SPUDT being impedance matched to a radio frequency energy source electrically coupled to the delay line.
A radio frequency device including a delay line comprising:
- a piezoelectric substrate;
- a transmission single phase unidirectional transducer (SPUDT) disposed on the piezoelectric substrate;
- and
- a receive SPUDT disposed on the piezoelectric substrate and separated from the transmission SPUDT in a direction of transmission of a main acoustic wave mode utilized by the transmission SPUDT, the transmission SPUDT and the receive SPUDT being impedance matched to a radio frequency energy source electrically coupled to the delay line.
Dependencies are inferred from the claim text.