LOW-INSERTION-LOSS PIEZOELECTRIC ACOUSTIC WAVE BAND-PASS FILTER AND REALIZATION METHOD THEREOF
A low-insertion-loss piezoelectric acoustic wave band-pass filter and a realization method thereof are disclosed. The realization method includes the following steps: using one of the first kind of piezoelectric acoustic wave resonators to constitute a series branch; using one of the second kind of...
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| creator | ZHANG, HAO PANG, WEI DU, LIANGZHEN LU, YONG LIANG, GUANGMING QI, MINGKE |
| description | A low-insertion-loss piezoelectric acoustic wave band-pass filter and a realization method thereof are disclosed. The realization method includes the following steps: using one of the first kind of piezoelectric acoustic wave resonators to constitute a series branch; using one of the second kind of piezoelectric acoustic wave resonators to constitute a parallel branch with a ground terminal; connecting any end of the series branch with a non-ground terminal of the parallel branch to form an acoustic wave band-pass filter unit; and cascading a plurality of the acoustic wave band-pass filter units; wherein an impedance value at a series resonant frequency of the first kind of piezoelectric acoustic wave resonators is less than an impedance value at a series resonant frequency of the second kind of piezoelectric acoustic wave resonators; and an impedance value at a parallel resonant frequency of the first kind of piezoelectric acoustic wave resonators is less than an impedance value at a parallel resonant frequency of the second kind of piezoelectric acoustic wave resonators. |
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The realization method includes the following steps: using one of the first kind of piezoelectric acoustic wave resonators to constitute a series branch; using one of the second kind of piezoelectric acoustic wave resonators to constitute a parallel branch with a ground terminal; connecting any end of the series branch with a non-ground terminal of the parallel branch to form an acoustic wave band-pass filter unit; and cascading a plurality of the acoustic wave band-pass filter units; wherein an impedance value at a series resonant frequency of the first kind of piezoelectric acoustic wave resonators is less than an impedance value at a series resonant frequency of the second kind of piezoelectric acoustic wave resonators; and an impedance value at a parallel resonant frequency of the first kind of piezoelectric acoustic wave resonators is less than an impedance value at a parallel resonant frequency of the second kind of piezoelectric acoustic wave resonators.</description><language>eng ; fre ; ger</language><subject>BASIC ELECTRONIC CIRCUITRY ; ELECTRICITY ; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS ; RESONATORS</subject><creationdate>2015</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20151014&DB=EPODOC&CC=EP&NR=2930845A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20151014&DB=EPODOC&CC=EP&NR=2930845A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ZHANG, HAO</creatorcontrib><creatorcontrib>PANG, WEI</creatorcontrib><creatorcontrib>DU, LIANGZHEN</creatorcontrib><creatorcontrib>LU, YONG</creatorcontrib><creatorcontrib>LIANG, GUANGMING</creatorcontrib><creatorcontrib>QI, MINGKE</creatorcontrib><title>LOW-INSERTION-LOSS PIEZOELECTRIC ACOUSTIC WAVE BAND-PASS FILTER AND REALIZATION METHOD THEREOF</title><description>A low-insertion-loss piezoelectric acoustic wave band-pass filter and a realization method thereof are disclosed. The realization method includes the following steps: using one of the first kind of piezoelectric acoustic wave resonators to constitute a series branch; using one of the second kind of piezoelectric acoustic wave resonators to constitute a parallel branch with a ground terminal; connecting any end of the series branch with a non-ground terminal of the parallel branch to form an acoustic wave band-pass filter unit; and cascading a plurality of the acoustic wave band-pass filter units; wherein an impedance value at a series resonant frequency of the first kind of piezoelectric acoustic wave resonators is less than an impedance value at a series resonant frequency of the second kind of piezoelectric acoustic wave resonators; and an impedance value at a parallel resonant frequency of the first kind of piezoelectric acoustic wave resonators is less than an impedance value at a parallel resonant frequency of the second kind of piezoelectric acoustic wave resonators.</description><subject>BASIC ELECTRONIC CIRCUITRY</subject><subject>ELECTRICITY</subject><subject>IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS</subject><subject>RESONATORS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2015</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjEEKwjAQRbtxIeod5gIBtQq6HNMpCcROSaYWurAUiSvRQr0_RvAArv578Pjz7Oq4VbYK5MVypRyHALWljsmRFm81oOYmSIIWLwQnrApVY6pK64Q8JAdP6GyH3wc4kxguQAx54nKZze7DY4qr3y4yKEm0UXF89XEah1t8xndP9faYrw-7PW7yP5IP8Jwy1Q</recordid><startdate>20151014</startdate><enddate>20151014</enddate><creator>ZHANG, HAO</creator><creator>PANG, WEI</creator><creator>DU, LIANGZHEN</creator><creator>LU, YONG</creator><creator>LIANG, GUANGMING</creator><creator>QI, MINGKE</creator><scope>EVB</scope></search><sort><creationdate>20151014</creationdate><title>LOW-INSERTION-LOSS PIEZOELECTRIC ACOUSTIC WAVE BAND-PASS FILTER AND REALIZATION METHOD THEREOF</title><author>ZHANG, HAO ; PANG, WEI ; DU, LIANGZHEN ; LU, YONG ; LIANG, GUANGMING ; QI, MINGKE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP2930845A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2015</creationdate><topic>BASIC ELECTRONIC CIRCUITRY</topic><topic>ELECTRICITY</topic><topic>IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS</topic><topic>RESONATORS</topic><toplevel>online_resources</toplevel><creatorcontrib>ZHANG, HAO</creatorcontrib><creatorcontrib>PANG, WEI</creatorcontrib><creatorcontrib>DU, LIANGZHEN</creatorcontrib><creatorcontrib>LU, YONG</creatorcontrib><creatorcontrib>LIANG, GUANGMING</creatorcontrib><creatorcontrib>QI, MINGKE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ZHANG, HAO</au><au>PANG, WEI</au><au>DU, LIANGZHEN</au><au>LU, YONG</au><au>LIANG, GUANGMING</au><au>QI, MINGKE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>LOW-INSERTION-LOSS PIEZOELECTRIC ACOUSTIC WAVE BAND-PASS FILTER AND REALIZATION METHOD THEREOF</title><date>2015-10-14</date><risdate>2015</risdate><abstract>A low-insertion-loss piezoelectric acoustic wave band-pass filter and a realization method thereof are disclosed. The realization method includes the following steps: using one of the first kind of piezoelectric acoustic wave resonators to constitute a series branch; using one of the second kind of piezoelectric acoustic wave resonators to constitute a parallel branch with a ground terminal; connecting any end of the series branch with a non-ground terminal of the parallel branch to form an acoustic wave band-pass filter unit; and cascading a plurality of the acoustic wave band-pass filter units; wherein an impedance value at a series resonant frequency of the first kind of piezoelectric acoustic wave resonators is less than an impedance value at a series resonant frequency of the second kind of piezoelectric acoustic wave resonators; and an impedance value at a parallel resonant frequency of the first kind of piezoelectric acoustic wave resonators is less than an impedance value at a parallel resonant frequency of the second kind of piezoelectric acoustic wave resonators.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRONIC CIRCUITRY ELECTRICITY IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS RESONATORS |
| title | LOW-INSERTION-LOSS PIEZOELECTRIC ACOUSTIC WAVE BAND-PASS FILTER AND REALIZATION METHOD THEREOF |
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