A monolithic RF image-reject filter
A CMOS inductorless image-reject filter based on active RLC circuitry is discussed and designed with the emphasis on low-noise, low-power, and gigahertz-range circuits. Two Q-enhancement techniques are utilized to circumvent the low Q characteristics inherent in the simple feedback circuit. The freq...
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| creator | Yuyu Chang Choma, J. |
| description | A CMOS inductorless image-reject filter based on active RLC circuitry is discussed and designed with the emphasis on low-noise, low-power, and gigahertz-range circuits. Two Q-enhancement techniques are utilized to circumvent the low Q characteristics inherent in the simple feedback circuit. The frequency tuning is almost independent of Q tuning, facilitating the design of the automatic tuning circuitry. The stability of the filter is also discussed. Simulations using 0.6 /spl mu/m CMOS technology demonstrate the feasibility of the tunable image-reject filter for GSM wireless applications. Simulation results show 4.75 dB voltage gain, 7.2 dB noise figure, and -20 dBm IIP3 at a passband centered at 947 MHz. The image signal suppression is 60 dB at 1089 MHz and the power consumption is 27 mW. |
| doi_str_mv | 10.1109/SSMSD.2000.836443 |
| format | Conference Proceeding |
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Two Q-enhancement techniques are utilized to circumvent the low Q characteristics inherent in the simple feedback circuit. The frequency tuning is almost independent of Q tuning, facilitating the design of the automatic tuning circuitry. The stability of the filter is also discussed. Simulations using 0.6 /spl mu/m CMOS technology demonstrate the feasibility of the tunable image-reject filter for GSM wireless applications. Simulation results show 4.75 dB voltage gain, 7.2 dB noise figure, and -20 dBm IIP3 at a passband centered at 947 MHz. The image signal suppression is 60 dB at 1089 MHz and the power consumption is 27 mW.</description><identifier>ISBN: 9780780359758</identifier><identifier>ISBN: 0780359755</identifier><identifier>DOI: 10.1109/SSMSD.2000.836443</identifier><language>eng</language><publisher>IEEE</publisher><subject>Active filters ; Circuit optimization ; Circuit simulation ; Circuit stability ; CMOS technology ; Feedback circuits ; GSM ; Radio frequency ; RLC circuits ; Tunable circuits and devices</subject><ispartof>2000 Southwest Symposium on Mixed-Signal Design (Cat. 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Two Q-enhancement techniques are utilized to circumvent the low Q characteristics inherent in the simple feedback circuit. The frequency tuning is almost independent of Q tuning, facilitating the design of the automatic tuning circuitry. The stability of the filter is also discussed. Simulations using 0.6 /spl mu/m CMOS technology demonstrate the feasibility of the tunable image-reject filter for GSM wireless applications. Simulation results show 4.75 dB voltage gain, 7.2 dB noise figure, and -20 dBm IIP3 at a passband centered at 947 MHz. The image signal suppression is 60 dB at 1089 MHz and the power consumption is 27 mW.</description><subject>Active filters</subject><subject>Circuit optimization</subject><subject>Circuit simulation</subject><subject>Circuit stability</subject><subject>CMOS technology</subject><subject>Feedback circuits</subject><subject>GSM</subject><subject>Radio frequency</subject><subject>RLC circuits</subject><subject>Tunable circuits and devices</subject><isbn>9780780359758</isbn><isbn>0780359755</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2000</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNotj01Lw0AURQdEsNT8AF0FXCe--XiT95alWltoEUz3ZZy81CmplSQb_72BChfu4sDlXKUeNJRaAz_X9a5-KQ0AlGS9c_ZGZVwRTLHIFdKdyobhNHGwjOhopp4W-fnyfenS-JVi_rHK0zkcpejlJHHM29SN0t-r2zZ0g2T_PVf71et-uS6272-b5WJbJOKxQKpMiNBoQyJesP1sKEQx1iNrQdHeNGBCS4TsRRwHF5uAoMlGZuvtXD1eZ5OIHH76yaT_PVyP2D_amjzI</recordid><startdate>2000</startdate><enddate>2000</enddate><creator>Yuyu Chang</creator><creator>Choma, J.</creator><general>IEEE</general><scope>6IE</scope><scope>6IL</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIL</scope></search><sort><creationdate>2000</creationdate><title>A monolithic RF image-reject filter</title><author>Yuyu Chang ; Choma, J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i89t-5872ac0d128ee6e5fbd8ace236591e5e162d02af88596ee49a4cda50183c99363</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2000</creationdate><topic>Active filters</topic><topic>Circuit optimization</topic><topic>Circuit simulation</topic><topic>Circuit stability</topic><topic>CMOS technology</topic><topic>Feedback circuits</topic><topic>GSM</topic><topic>Radio frequency</topic><topic>RLC circuits</topic><topic>Tunable circuits and devices</topic><toplevel>online_resources</toplevel><creatorcontrib>Yuyu Chang</creatorcontrib><creatorcontrib>Choma, J.</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan All Online (POP All Online) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP All) 1998-Present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Yuyu Chang</au><au>Choma, J.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>A monolithic RF image-reject filter</atitle><btitle>2000 Southwest Symposium on Mixed-Signal Design (Cat. No.00EX390)</btitle><stitle>SSMSD</stitle><date>2000</date><risdate>2000</risdate><spage>41</spage><epage>44</epage><pages>41-44</pages><isbn>9780780359758</isbn><isbn>0780359755</isbn><abstract>A CMOS inductorless image-reject filter based on active RLC circuitry is discussed and designed with the emphasis on low-noise, low-power, and gigahertz-range circuits. Two Q-enhancement techniques are utilized to circumvent the low Q characteristics inherent in the simple feedback circuit. The frequency tuning is almost independent of Q tuning, facilitating the design of the automatic tuning circuitry. The stability of the filter is also discussed. Simulations using 0.6 /spl mu/m CMOS technology demonstrate the feasibility of the tunable image-reject filter for GSM wireless applications. Simulation results show 4.75 dB voltage gain, 7.2 dB noise figure, and -20 dBm IIP3 at a passband centered at 947 MHz. The image signal suppression is 60 dB at 1089 MHz and the power consumption is 27 mW.</abstract><pub>IEEE</pub><doi>10.1109/SSMSD.2000.836443</doi><tpages>4</tpages></addata></record> |
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| ispartof | 2000 Southwest Symposium on Mixed-Signal Design (Cat. No.00EX390), 2000, p.41-44 |
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| language | eng |
| recordid | cdi_ieee_primary_836443 |
| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Active filters Circuit optimization Circuit simulation Circuit stability CMOS technology Feedback circuits GSM Radio frequency RLC circuits Tunable circuits and devices |
| title | A monolithic RF image-reject filter |
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