http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2003088483-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03H9-02929 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03H9-02559 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03H9-02661 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03H9-6483 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03H9-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03H9-25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03H9-145 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03H9-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03H9-145 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03H9-25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03H9-64 |
| filingDate | 2003-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2005-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-WO2003088483-A1 |
| titleOfInvention | Surface acoustic wave device, mobile communication device and sensor using the same |
| abstract | An object of the present invention is to minimize loss and improve steepness in a surface acoustic wave (SAW) device such as a surface acoustic wave resonator or a filter. By providing an IDT electrode having a predetermined thickness and electrode finger pitch (p) and a reflector on a piezoelectric substrate cut out at a cut angle capable of exciting a leaky surface acoustic wave (LSAW), the SAW to be used Propagation loss is generated by making the sound speed slower than the sound speed (vb) of the slow transverse wave propagating through the piezoelectric substrate and satisfying the relationship of 2 × p ≦ vb / f when the resonance frequency is f. RSAW can be used, and insertion loss and steep characteristics are improved as compared to conventional LSAW type SAW devices. |
| priorityDate | 2002-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.