POWER AMPLIFIER
PURPOSE:To eliminate the need for a changeover switch and a standby power amplifier element for the power amplifier and to obtain the power amplifier without causing using deterioration in performance attended with a fault of a changeover switch. CONSTITUTION:A communication signal received from inp...
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| creator | KAZEKAMI YUTAKA |
| description | PURPOSE:To eliminate the need for a changeover switch and a standby power amplifier element for the power amplifier and to obtain the power amplifier without causing using deterioration in performance attended with a fault of a changeover switch. CONSTITUTION:A communication signal received from input terminals 13 and separated to each channel is equally divided into (N+M) at a 3 dB hybrid. The divided communication signal is amplified up to 1/N of a power P desired to be outputted by optional N-sets of power amplifier elements 15 among (N+M) sets of the elements 15, and the resulting powers are synthesized by a power synthesizer 16 and outputs corresponding to the input terminals 13 of the power divider 14 are obtained at multi-port output terminals 11. Only N-sets of the power amplifier elements 15 are started and the remaining M-sets are stopped. Thus, a power amplifier element 15 in the stop state is properly started when the active power amplifier element 15 is faulty. An isolation characteristic change or the like attended with a change in the electric length is not caused when the standby power amplifier element 15 is selected and the amplification with high reliability is attained. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JPH06296115A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JPH06296115A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JPH06296115A3</originalsourceid><addsrcrecordid>eNrjZOAP8A93DVJw9A3w8XTzdA3iYWBNS8wpTuWF0twMim6uIc4euqkF-fGpxQWJyal5qSXxXgEeBmZGlmaGhqaOxsSoAQDu9R16</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>POWER AMPLIFIER</title><source>esp@cenet</source><creator>KAZEKAMI YUTAKA</creator><creatorcontrib>KAZEKAMI YUTAKA</creatorcontrib><description>PURPOSE:To eliminate the need for a changeover switch and a standby power amplifier element for the power amplifier and to obtain the power amplifier without causing using deterioration in performance attended with a fault of a changeover switch. CONSTITUTION:A communication signal received from input terminals 13 and separated to each channel is equally divided into (N+M) at a 3 dB hybrid. The divided communication signal is amplified up to 1/N of a power P desired to be outputted by optional N-sets of power amplifier elements 15 among (N+M) sets of the elements 15, and the resulting powers are synthesized by a power synthesizer 16 and outputs corresponding to the input terminals 13 of the power divider 14 are obtained at multi-port output terminals 11. Only N-sets of the power amplifier elements 15 are started and the remaining M-sets are stopped. Thus, a power amplifier element 15 in the stop state is properly started when the active power amplifier element 15 is faulty. An isolation characteristic change or the like attended with a change in the electric length is not caused when the standby power amplifier element 15 is selected and the amplification with high reliability is attained.</description><edition>5</edition><language>eng</language><subject>AMPLIFIERS ; BASIC ELECTRONIC CIRCUITRY ; ELECTRICITY</subject><creationdate>1994</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=19941021&DB=EPODOC&CC=JP&NR=H06296115A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19941021&DB=EPODOC&CC=JP&NR=H06296115A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KAZEKAMI YUTAKA</creatorcontrib><title>POWER AMPLIFIER</title><description>PURPOSE:To eliminate the need for a changeover switch and a standby power amplifier element for the power amplifier and to obtain the power amplifier without causing using deterioration in performance attended with a fault of a changeover switch. CONSTITUTION:A communication signal received from input terminals 13 and separated to each channel is equally divided into (N+M) at a 3 dB hybrid. The divided communication signal is amplified up to 1/N of a power P desired to be outputted by optional N-sets of power amplifier elements 15 among (N+M) sets of the elements 15, and the resulting powers are synthesized by a power synthesizer 16 and outputs corresponding to the input terminals 13 of the power divider 14 are obtained at multi-port output terminals 11. Only N-sets of the power amplifier elements 15 are started and the remaining M-sets are stopped. Thus, a power amplifier element 15 in the stop state is properly started when the active power amplifier element 15 is faulty. An isolation characteristic change or the like attended with a change in the electric length is not caused when the standby power amplifier element 15 is selected and the amplification with high reliability is attained.</description><subject>AMPLIFIERS</subject><subject>BASIC ELECTRONIC CIRCUITRY</subject><subject>ELECTRICITY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1994</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOAP8A93DVJw9A3w8XTzdA3iYWBNS8wpTuWF0twMim6uIc4euqkF-fGpxQWJyal5qSXxXgEeBmZGlmaGhqaOxsSoAQDu9R16</recordid><startdate>19941021</startdate><enddate>19941021</enddate><creator>KAZEKAMI YUTAKA</creator><scope>EVB</scope></search><sort><creationdate>19941021</creationdate><title>POWER AMPLIFIER</title><author>KAZEKAMI YUTAKA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH06296115A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1994</creationdate><topic>AMPLIFIERS</topic><topic>BASIC ELECTRONIC CIRCUITRY</topic><topic>ELECTRICITY</topic><toplevel>online_resources</toplevel><creatorcontrib>KAZEKAMI YUTAKA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KAZEKAMI YUTAKA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>POWER AMPLIFIER</title><date>1994-10-21</date><risdate>1994</risdate><abstract>PURPOSE:To eliminate the need for a changeover switch and a standby power amplifier element for the power amplifier and to obtain the power amplifier without causing using deterioration in performance attended with a fault of a changeover switch. CONSTITUTION:A communication signal received from input terminals 13 and separated to each channel is equally divided into (N+M) at a 3 dB hybrid. The divided communication signal is amplified up to 1/N of a power P desired to be outputted by optional N-sets of power amplifier elements 15 among (N+M) sets of the elements 15, and the resulting powers are synthesized by a power synthesizer 16 and outputs corresponding to the input terminals 13 of the power divider 14 are obtained at multi-port output terminals 11. Only N-sets of the power amplifier elements 15 are started and the remaining M-sets are stopped. Thus, a power amplifier element 15 in the stop state is properly started when the active power amplifier element 15 is faulty. An isolation characteristic change or the like attended with a change in the electric length is not caused when the standby power amplifier element 15 is selected and the amplification with high reliability is attained.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record> |
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| subjects | AMPLIFIERS BASIC ELECTRONIC CIRCUITRY ELECTRICITY |
| title | POWER AMPLIFIER |
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