18368177. COMPOSITE FILTER DEVICE simplified abstract (Murata Manufacturing Co., Ltd.)
Contents
- 1 COMPOSITE FILTER DEVICE
COMPOSITE FILTER DEVICE
Organization Name
Murata Manufacturing Co., Ltd.
Inventor(s)
Yasuhiro Shimizu of Nagaokakyo-shi (JP)
Sunao Yamazaki of Nagaokakyo-shi (JP)
Kenta Maeda of Nagaokakyo-shi (JP)
COMPOSITE FILTER DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18368177 titled 'COMPOSITE FILTER DEVICE
Simplified Explanation
The patent application describes a composite filter device with two acoustic wave resonators, one of which is a parallel-arm resonator and the other a series-arm resonator, arranged in a specific configuration on piezoelectric substrates.
- The first acoustic wave resonator includes a functional electrode on a piezoelectric substrate, with a wiring electrode that is not connected to a signal potential.
- A support surrounds the first acoustic wave resonator, and a second piezoelectric substrate with a second acoustic wave resonator is placed on the support.
- The second acoustic wave resonator is a parallel-arm resonator with a higher resonant frequency than any other parallel-arm resonator or a series-arm resonator lower in resonant frequency than any other series-arm resonator.
- The second acoustic wave resonator and the wiring electrode overlap each other when viewed in plan.
Potential Applications
This technology could be applied in:
- Wireless communication devices
- Signal processing equipment
- Frequency filtering systems
Problems Solved
This technology helps in:
- Improving signal filtering efficiency
- Enhancing frequency control in electronic devices
Benefits
The benefits of this technology include:
- Higher precision in frequency filtering
- Improved signal processing capabilities
- Enhanced performance in wireless communication devices
Potential Commercial Applications
The potential commercial applications of this technology could be in:
- Telecommunications industry
- Electronics manufacturing sector
- Research and development organizations
Possible Prior Art
One possible prior art could be the use of acoustic wave resonators in electronic devices for frequency filtering purposes.
Unanswered Questions
How does this technology compare to existing frequency filtering methods?
This article does not provide a direct comparison with existing frequency filtering methods.
What are the potential challenges in implementing this technology on a large scale?
The article does not address the potential challenges in implementing this technology on a large scale.
Original Abstract Submitted
In a composite filter device, a first acoustic wave resonator includes a functional electrode on a first main surface of a first piezoelectric substrate, and a wiring electrode is on the first main surface and is not connected to a signal potential. A support is on the first main surface and surrounds the first acoustic wave resonator. A second piezoelectric substrate is on the support and includes a third main surface closer to the support than a fourth main surface. A second acoustic wave resonator includes a functional electrode on the third main surface. The second acoustic wave resonator is a parallel-arm resonator higher in resonant frequency than any other parallel-arm resonator or a series-arm resonator lower in resonant frequency than any other series-arm resonator. The second acoustic wave resonator and the wiring electrode overlap each other when viewed in plan.
