Filter for inhibiting second harmonics
The invention provides a filter for inhibiting second harmonics. The filter comprises a third-order resonant coupling band-pass filtering circuit, a third-order low-pass filtering circuit and a third-order high-pass filtering circuit, wherein the third-order high-pass filtering circuit, the third-or...
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| creator | LIU XUAN LI JIAN ZHANG JIANJUN HAO SHUAILONG |
| description | The invention provides a filter for inhibiting second harmonics. The filter comprises a third-order resonant coupling band-pass filtering circuit, a third-order low-pass filtering circuit and a third-order high-pass filtering circuit, wherein the third-order high-pass filtering circuit, the third-order resonant coupling band-pass filtering circuit and the third-order low-pass filtering circuit aresequentially connected. Compared with an ordinary LC filter, the filter provided by the invention has the beneficial effects that the cost is lower; the environment-friendly effect is better; the damage to the environment is small; the performance is excellent; the band-pass difference consumption is less than 2dB; the flatness degree in the band is better, and is smaller than 0.5dB; the rectangular coefficient is higher; the out-of-band inhibition, particularly the inhibition on second harmonics can reach 57dB; when the filter is applied to a power amplifier system, the filter is positionedat a power amplifier or a |
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The filter comprises a third-order resonant coupling band-pass filtering circuit, a third-order low-pass filtering circuit and a third-order high-pass filtering circuit, wherein the third-order high-pass filtering circuit, the third-order resonant coupling band-pass filtering circuit and the third-order low-pass filtering circuit aresequentially connected. Compared with an ordinary LC filter, the filter provided by the invention has the beneficial effects that the cost is lower; the environment-friendly effect is better; the damage to the environment is small; the performance is excellent; the band-pass difference consumption is less than 2dB; the flatness degree in the band is better, and is smaller than 0.5dB; the rectangular coefficient is higher; the out-of-band inhibition, particularly the inhibition on second harmonics can reach 57dB; when the filter is applied to a power amplifier system, the filter is positionedat a power amplifier or a</description><language>chi ; eng</language><subject>BASIC ELECTRONIC CIRCUITRY ; ELECTRICITY ; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS ; RESONATORS</subject><creationdate>2018</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=20180213&DB=EPODOC&CC=CN&NR=107689782A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20180213&DB=EPODOC&CC=CN&NR=107689782A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LIU XUAN</creatorcontrib><creatorcontrib>LI JIAN</creatorcontrib><creatorcontrib>ZHANG JIANJUN</creatorcontrib><creatorcontrib>HAO SHUAILONG</creatorcontrib><title>Filter for inhibiting second harmonics</title><description>The invention provides a filter for inhibiting second harmonics. The filter comprises a third-order resonant coupling band-pass filtering circuit, a third-order low-pass filtering circuit and a third-order high-pass filtering circuit, wherein the third-order high-pass filtering circuit, the third-order resonant coupling band-pass filtering circuit and the third-order low-pass filtering circuit aresequentially connected. Compared with an ordinary LC filter, the filter provided by the invention has the beneficial effects that the cost is lower; the environment-friendly effect is better; the damage to the environment is small; the performance is excellent; the band-pass difference consumption is less than 2dB; the flatness degree in the band is better, and is smaller than 0.5dB; the rectangular coefficient is higher; the out-of-band inhibition, particularly the inhibition on second harmonics can reach 57dB; when the filter is applied to a power amplifier system, the filter is positionedat a power amplifier or a</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>2018</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFBzy8wpSS1SSMsvUsjMy8hMyizJzEtXKE5Nzs9LUchILMrNz8tMLuZhYE1LzClO5YXS3AyKbq4hzh66qQX58anFBYnJqXmpJfHOfoYG5mYWluYWRo7GxKgBAHfjJ78</recordid><startdate>20180213</startdate><enddate>20180213</enddate><creator>LIU XUAN</creator><creator>LI JIAN</creator><creator>ZHANG JIANJUN</creator><creator>HAO SHUAILONG</creator><scope>EVB</scope></search><sort><creationdate>20180213</creationdate><title>Filter for inhibiting second harmonics</title><author>LIU XUAN ; LI JIAN ; ZHANG JIANJUN ; HAO SHUAILONG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN107689782A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2018</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>LIU XUAN</creatorcontrib><creatorcontrib>LI JIAN</creatorcontrib><creatorcontrib>ZHANG JIANJUN</creatorcontrib><creatorcontrib>HAO SHUAILONG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LIU XUAN</au><au>LI JIAN</au><au>ZHANG JIANJUN</au><au>HAO SHUAILONG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Filter for inhibiting second harmonics</title><date>2018-02-13</date><risdate>2018</risdate><abstract>The invention provides a filter for inhibiting second harmonics. The filter comprises a third-order resonant coupling band-pass filtering circuit, a third-order low-pass filtering circuit and a third-order high-pass filtering circuit, wherein the third-order high-pass filtering circuit, the third-order resonant coupling band-pass filtering circuit and the third-order low-pass filtering circuit aresequentially connected. Compared with an ordinary LC filter, the filter provided by the invention has the beneficial effects that the cost is lower; the environment-friendly effect is better; the damage to the environment is small; the performance is excellent; the band-pass difference consumption is less than 2dB; the flatness degree in the band is better, and is smaller than 0.5dB; the rectangular coefficient is higher; the out-of-band inhibition, particularly the inhibition on second harmonics can reach 57dB; when the filter is applied to a power amplifier system, the filter is positionedat a power amplifier or a</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 | Filter for inhibiting second harmonics |
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