Method for manufacturing acoustic wave device
US-9148107-B2 · Sep 29, 2015 · US
Filter using BAWRs and L/C elements connected to the BAWRs
US9768753B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9768753-B2 |
| Application number | US-201214382115-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 12, 2012 |
| Priority date | Feb 29, 2012 |
| Publication date | Sep 19, 2017 |
| Grant date | Sep 19, 2017 |
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Abstract
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A filter using bulk acoustic wave resonators (BAWRs) is provided including BAWRs connected in series or in parallel to each other. A BAWR set is configured by connecting an inductance and capacitance (L/C) element to each BAWR in series or in parallel.
First claim
Opening claim text (preview).
The invention claimed is: 1. A filter circuit using bulk acoustic wave resonators (BAWRs), the filter circuit comprising: a plurality of BAWR ends comprising a plurality of BAWR sets connected in series or in parallel to each other; and a matching end provided between the plurality of BAWR ends to match a frequency between the plurality of BAWR ends, wherein each of the plurality of BAWR sets comprises a BAWR and an inductance and capacitance (L/C) element connected to the BAWR in series or in parallel, wherein each of the plurality of BAWR ends comprises the plurality of BAWR sets in a lattice structure. 2. The filter circuit of claim 1 , wherein the matching end comprises an L/C element connected in series or in parallel. 3. The filter circuit of claim 1 , wherein the matching end is configured to control a frequency transmission characteristic and a reflection characteristic of a signal passing between the BAWR ends or between input and output ends. 4. The filter circuit of claim 3 , wherein, in the matching end, an end of an L/C element connected in parallel is connected to an input end or an end of an L/C element connected in series. 5. The filter circuit of claim 1 , wherein the plurality of BAWR sets in a lattice structure comprises: a first BAWR set and a second BAWR set connected in series in respective first and second signal lines; a third BAWR set comprising an end connected to an input end of the first BAWR set and another end connected to an output end of the second BAWR set; and a fourth BAWR set comprising an end connected to an output end of the first BAWR set and another end connected to an input end of the second BAWR set. 6. The filter circuit of claim 5 , wherein an L/C element of the first BAWR set and an L/C element of the second BAWR set comprise an identical connection structure. 7. The filter circuit of claim 5 , wherein an L/C element of the third BAWR set and an L/C element of the fourth BAWR set comprise an identical connection structure.
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Frequently asked questions
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- What does patent US9768753B2 cover?
- A filter using bulk acoustic wave resonators (BAWRs) is provided including BAWRs connected in series or in parallel to each other. A BAWR set is configured by connecting an inductance and capacitance (L/C) element to each BAWR in series or in parallel.
- Who is the assignee on this patent?
- Lee Jae Chun, Kim Duck Hwan, Kim Chul Soo, and 7 more
- What technology area does this patent fall under?
- Primary CPC classification H03H9/542. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 19 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).