Radio frequency filter and radio frequency duplexer including bulk acoustic wave resonators in a ladder and a bridge
US8902021B2 · kind B2 · utility
1Cited by
10References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 2011 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Mar 16, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/542
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A Radio Frequency (RF) duplexer including Bulk Acoustic Wave Resonators (BAWRs) and an RF filter including BAWRs are provided. The RF duplexer may convert the received signal into a balance signal and output the balance signal via a dual-output port. The RF duplexer may also include a BAWR receiving filter unit including an input end to receive the balance signal from the dual-output port, and an output end used for dual output. The RF duplexer may also include a BAWR transmitting filter unit to transmit a transmitted signal to the antenna via a single-output port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.