CMOSRFIC平面螺旋电感的集总等效电路英文第 26 卷 　 第 11 期 2005 年 11 月 半　 导　 体　 学　 报 C H IN ESE J OU RNAL O F SEMICONDUC TORS Vol. 26 　 No . 11 Nov. ,2005 Lumped Equivalent Circuit of Planar Spiral Inductor f or CMOS RFIC Application 3 Zhao Jixiang ( De p art ment of Elect ronic En gi neeri n g , Chi na J ili an g Uni versit y , H angz hou 　 310018 , Chi na) Abstract : A lumped π 2type equivalent circuit of planar spiral inducto r for CMOS RFIC application is developed by t he domain deco mpo sition met hod for confo rmal modules (DDM2CM) . Clo sed form exp ressions of lumped parame2 ters fo r a square spiral inductor on a Si2SiO 2 subst rate are o btained and verified wit h t he p reviously p ublished experi2 mental result s. Key words : planar spiral inductors ; equivalent circuit ; inductance ; quality facto r ; DDM2CM EEACC……