18243203. MULTIPLEXER simplified abstract (Murata Manufacturing Co., Ltd.)
Contents
- 1 MULTIPLEXER
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 MULTIPLEXER - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Potential Applications
- 1.6 Problems Solved
- 1.7 Benefits
- 1.8 Potential Commercial Applications
- 1.9 Possible Prior Art
- 1.10 Unanswered Questions
- 1.11 Original Abstract Submitted
MULTIPLEXER
Organization Name
Murata Manufacturing Co., Ltd.
Inventor(s)
Norihiko Nakahashi of Nagaokakyo-shi (JP)
MULTIPLEXER - A simplified explanation of the abstract
This abstract first appeared for US patent application 18243203 titled 'MULTIPLEXER
Simplified Explanation
The patent application describes a multiplexer with multiple filters and an additional circuit to improve performance.
- The multiplexer includes a first filter with a pass band at a first frequency band, a second filter with a pass band at a higher second frequency band, and an additional circuit with a longitudinally coupled resonator including IDT electrodes.
- The additional circuit is connected in parallel to the path between the common terminal and the input/output terminal.
- The design ensures that the peak frequency in the IDT response of the additional circuit falls within a specific range relative to the lowest impedance frequency above the second frequency band when viewed from the common terminal.
Potential Applications
The technology can be applied in telecommunications, radar systems, and wireless communication devices.
Problems Solved
This innovation helps in improving the performance and efficiency of multiplexers by reducing interference and enhancing signal quality.
Benefits
The multiplexer offers better signal filtering, increased bandwidth capacity, and improved overall system performance.
Potential Commercial Applications
The technology can be utilized in 5G networks, satellite communications, and IoT devices for enhanced signal processing and data transmission.
Possible Prior Art
One possible prior art could be the use of resonators and filters in multiplexers for signal processing and frequency selection.
Unanswered Questions
How does this technology compare to existing multiplexer designs in terms of size and cost?
The article does not provide information on the size and cost implications of implementing this new multiplexer design.
Are there any limitations or drawbacks to using this multiplexer in certain applications?
The article does not discuss any potential limitations or drawbacks of using this multiplexer technology in specific applications.
Original Abstract Submitted
A multiplexer includes a first filter connected between a common terminal and an input/output terminal and having a pass band including a first frequency band, a second filter connected between the common terminal and an input/output terminal and having a pass band including a second frequency band higher than the first frequency band, and an additional circuit connected in parallel to a path connecting the common terminal and the input/output terminal. The additional circuit includes a longitudinally coupled resonator including IDT electrodes. If a peak frequency in an IDT response occurring in a bandpass characteristic of the additional circuit is f1, and if a frequency corresponding to a lowest impedance among frequencies higher than the second frequency band in an impedance characteristic viewing the multiplexer from the common terminal is f2, f2×(1−0.0012)≤f1≤f2×(1+0.0012) is satisfied.
