.MCAD 310000000 \  docDocument MmcObject[33  dim_formatTmasslengthtimecharge temperature luminosity substanceNumericalFormatQdii  shpRectV W mcDocumentObjectState\ mcPageModelKg?g?].?].?mcHeaderFooterI@I CHeaderFooterJ@J@J@J MbP?MbP? TextState? TextStyle>@ ArialSerial_ParPropDefaultW?Normalfont_style_listO font_styleP  VariablesTimes New Roman@P  ConstantsTimes New Roman@P TextArial@P Greek VariablesSymbol@P User 1Arial@P User 2 Courier New@P User 3Arial@P User 4Times New Roman@P User 5Times New Roman@P User 6Arial@P User 7Times New Roman@P SymbolsSymbol@P Current Selection FontArial@P Undefined Font@P HeaderArial@P FooterArial@P Rotated Math FontTimes New Roman9 TextRegion* docRegionGshpBoxUH$H  CharacterMap-RangeMap;#Capacitativly Coupled Chebychev BPF ChrPropMap7# RangeElem<# ChrPropData8 RangeData=lArial0,0,128 ParPropMap9# <#  ParPropData:@W/EmbedMap1 <LinkMap/# <# LinkData0@NormalArial *@U+rK8 -0Chris Haji-Michael www.sunshadow.co.uk/chris.htm70<08mArial0,0,12890<0:@W/1</0<00@NormalArial  COleDocItemDocItem @U`{D`$5ࡱ>  !   !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~Root Entry@96>@)72'!CONTENTS 1CONTENTSV30CompObjuxiles\MathSoft\Mathca @96>@)#Microsoft Photo Editor 3.0 PictureMSPhotoEditor MSPhotoEd.39q ww:w` F` @7tXp_-` _-9fw _-fwXw@@_-_- Dw _-,wp8wDwp}w:wtXw@+x_-xx_-Ewhws`AiQQ$#EYwND Hw2w`wAA5Fw-ZwAL_-AlX_DXGOpen1wp}cC:\Documents and Settings\Chris\My Documents\Technical\Mathcad\Archive\capcouplrdfilterschem1.gifxțp}cxxc(OK|` wU|(c@.a  an Existing@.a! 9wt!xxC:\Documents and Settings\Chris\My Documents\Technical\Mathcad\Archive\capcouplrdfilter\schem1.gifx$ 1w dwxw:wԦwwG-Zw-ZwqZw Hw:wԷD@     #$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~4: G?K9JOle OlePres000"28Ole       !"#$%&'()*+,-./0123456789:;<=>@7   rAiQQ$#EYwND Hw2w`wAA5Fw-ZwAL_-AlX_DXGOpen1wp}cC:\Documents and Settings\Chris\My Documents\Technical\Mathcad\Archive\capcouplrdfilterschem1.gifxp}cxxc(OK|` wU|(c@.a  an Existing@.a! 9wt!xxC:\Documents and Settings\Chris\My Documents\Technical\Mathcad\Archive\capcouplrdfilter\schem1.gifx$ 1w dwxw:wwwG-Zw-ZwqZw Hw:wԷD45C ss(sP/iAQQ#$EYwDN wH2ww`AAF5-wwZAL-_AlX_DGXpOnew1pc}\:CcoDemustnna S dttegniC\sirhM\sD yuconem\stceTinhlacaM\cht\dacrAvihc\ecpapuodrllifretcsmehg.1fixc}pxxc(OK|` w՚U|(@ca. a nEixsitn@ga.! 9wճt!xxCD\:uconem stdnaeS ittsgnhC\siryM\oD muctneT\shcecin\lataMachA\dhcreviac\ocplpufdrtli\rehcs1meig.fx$ 1w dxww:wwwʶ-GwZ-wZZqw wH:wD'NANI*@USa`QQbQb-AlThis sheet is used to design a microwave capacitatively coupled BPF. The maths for this filter is modified from "Theory & Design of Microwave Filters", Ian Hunter, IEE Press. The schematic designed and simulated is shown above. for N=7, BW=50MHz, 30dB return loss. The Chebychev plotting part of this sheet was written by Lance Lascari, http://tools.rfdude.com7Fl<80,0,128<$8mArial0,0,128<80,0,128<48e0,0,128 <&!8e Comic Sans MS0,0,128 9l"<#:@W/$<%:@W/"$"1&</UUl'@@ p?@@ >@@@@d?nH@A@@?@B@@@@A@C@@t@B10@D@@K@B@E@@@D9@F@@@Ahenry@G@B@UP:@H@@ p@I@@ @H@J@@d@IL.ar_db@K@@@I30@L*@Uxx-Passband return loss in dB7@M<@N8@L0,0,1289@O<@P:@W1@Q</@R<@S0@NormalArial @T@B@U2%" @U@@ p@V@@ @U@W@@d@VN@X@@@V7@Y*@Ux#x ff-?Order of the filter, this needs to be above 2 and even numbers.7?@Z@@@ p@@@ @@@@@@@@@d@L.A@@@p@@@@ @A@@d@fA@@@f.cA@@@A@@I@AA@@@AA@@tA10A@@AA@@dAlogA@@pAA @@AA @@tA 1A @@A A @@dA \eA @@A A@@p@A A@@AA@@dAcosA@@pAA@@AA@@dANA@@AA@@dAacosA@@pAA@@AA@@dAfA@@Af.cA@@A 2A@@.AA@@dAfA@@Af.cA@@IAA@@@AA @@tA10A!@@AA"@@dA!logA#@@pA!A$@@pA#A%@@A$A&@@tA%1A'@@A%A(@@dA'\eA)@@A'A*@@p@A)A+@@A*A,@@dA+coshA-@@pA+A.@@A-A/@@dA.NA0@@A.A1@@dA0acoshA2@@pA0A3@@A2A4@@dA3fA5@@A3f.cA6@@A)2A7@@(AA8@@dA7fA9@@A7f.cA:@B@U5hK`A;@@ pA<@@ A;A=@@@A@@dA=S11.AA?@@pA=A@@@ A?AA@@dA@fAB@@A@f.1AC@@A@@dB=sinB?@@pB=B@@@B?BA@@@B@BB@@dBAnnBC@@BA\pBD@@B@NBE@@B;2BF@@B50.5BG@@B4\hBH@B@U= BI@@ pBJ@@ BIBK@@dBJnnnBL@@BJBM@@ @BLBN@@tBM0BO@@BM1BP@@BLNBQ@B@U &BR@@ pBS@@ BRBT@@@BSBU@@dBTCBV@@BTnBW@@BSBX@@@BWBY@@dBX2BZ@@BX\hB[@@BWB\@@dB[sinB]@@pB[B^@@B]B_@@@B^B`@@p@B_Ba@@B`Bb@@@BaBc@@tBb2Bd@@BbnBe@@Ba1Bf@@B_\pBg@@B^Bh@@tBg2Bi@@BgNBj@B@UD?(Bk@@ pBl@@ BkBm@@@BlBn@@dBmCapBo@@ BmBp@@tBo0Bq@@Bo1Br@@BlBs@@tBr1Bt@@pBrBu@@BtBv@@@BuBw@@@BvBx@@@BwBy@@dBx2Bz@@Bx\pB{@@Bwf.gmB|@@BvB}@@p@B|B~@@B}B@@dB~\aB@@B~1B@@B|0.5B@@BuZ.oB@B@UDE(B@@ pB@@ BB@@@BB@@dBCapB@@ BB@@dBNB@@BB@@dBNB@@B1B@@BB@@tB1B@@pBB@@BB@@@BB@@@BB@@@BB@@dB2B@@B\pB@@Bf.gmB@@BB@@p@BB@@BB@@dB\aB@@B1B@@B0.5B@@BZ.oB@B@Ur4>(B@@ pB@@BB@@@BB@@dBCapB@@ BB@@tB0B@@B1B@@BB@@+@B@XB@@BpF3J`B@B@UP<hB@@ pB@@ BB@@@BB@@dBIndB@@ BB@@dBnB@@BnB@@BB@@dBZ.oB@@BB@@@BB@@@BB@@@BB@@dBCB@@BnB@@B2B@@B\pB@@Bf.gmB@B@UTu pB@@ pB@@ BB@@@BB@@dBCapB@@ BB@@dBnnB@@BB@@dBnnB@@B1B@@BB@@@BB@@dBKB@@ BB@@dBnnB@@BB@@dBnnB@@B1B@@BB@@@BB@@@BB@@@BB@@dB\aB@@B2B@@B\pB@@Bf.gmB@@BZ.oB@B@U?B@@ pB@@ BB@@@BB@@dBCapB@@ BB@@dBnB@@BnB@@BB@@@BB@@@BB@@@BB@@dBCB@@BnB@@BB@@@BB@@@BB@@tB2B@@B\pB@@Bf.gmB@@BZ.oB@@BB@@dBCapB@@ BB@@@BB@@dBnB@@B1B@@BnB@@BB@@dBCapB@@ BB@@dBnB@@BB@@dBnB@@B1B@B@UB@@ pB@@ BB@@@BB@@dBCapB@@ BC@@dBNC@@BNC@@BC@@dCCapC@@ CC@@tC1C@@C1C@B@U??C@@ pC @@ CC @@@C C @@dC CapC @@ C C @@tC 1C@@C 1C@@C C@@@CC@@@CC@@@CC@@dCCC@@C1C@@CC@@@CC@@@CC@@tC2C@@C\pC@@Cf.gmC@@CZ.oC@@CC@@@CC@@p@CC@@CC @@dC\aC!@@C1C"@@C0.5C#@@CC$@@@C#C%@@@C$C&@@@C%C'@@tC&2C(@@C&\pC)@@C%f.gmC*@@C$Z.oC+@@C#\aC,@@CC-@@dC,CapC.@@ C,C/@@tC.1C0@@C.2C1@B@U S  C2@@ pC3@@C2C4@@@C3C5@@dC4CC6@@C4nC7@@C3C8@@@C7C9@@@C8C:@@C8C;@@<@C:C< CVSEqItem EqItem C1C;C= CVSComboItemCVSItem< 1 )CVSOleClientItem3 ࡱ> Root EntryaB.dK89:!@Contents( =x )di ixArialArial,wxw<T1c$C>@@C:1@XC?@@C7C@@B@U` z CA@@ pCB@@CACC@@@CBCD@@dCCKCE@@ CCCF@@dCEnnCG@@CECH@@dCGnnCI@@CG1CJ@@CBCK@@@CJCL@@@CKCM@@CKCN@@<@CMCO C@CNCP< b1 )xCVSOleClientItem4 ࡱ> Root EntryaB.dK89:!@Contents( =g )di itxArialArial,wxw<T1c$CQ@@CM1@XCR@@CJ3J`CS@B@Up   /CT@@ pCU@@CTCV@@@CUCW@@dCVCapCX@@ CVCY@@dCXnCZ@@CXnC[@@CUC\@@@C[C]@@@C\C^@@C\C_@@<@C^C` CSC_Ca< r1 )CVSOleClientItem1 ࡱ> Root EntryaB.dK89:!@Contents( =x )di ixArialArial,wxw<T1c$Cb@@C^1@XCc@@C[pF3J`Cd@B@U   0Ce@@ pCf@@CeCg@@@CfCh@@dCgIndCi@@ CgCj@@dCinCk@@CinCl@@CfCm@@@ClCn@@@CmCo@@CmCp@@<@CoCq CdCpCr< 1 0CVSOleClientItem0 ࡱ> Root EntryaB.dK89:!@Contents( x 0di ixArialArial,wxw<T1c$XX  '@$z@alpX"Arial BalticArialCs@@Co1@XCt@@ClnHCu@B@U f > 1Cv@@ pCw@@CvCx@@@CwCy@@dCxCapCz@@ CxC{@@dCznnnC|@@CzC}@@dC|nnnC~@@C|1C@@CwC@@@CC@@@CC@@CC@@<@CC CuCC< 1 )CVSOleClientItem2 ࡱ> Root EntryaB.dK89:!@Contents( = )di ixArialArial,wxw<T1c$C@@C1@XC@@CpF3J`C*@U! 4 0 `-Simulation Results7C<C8Cl Arial0,0,1289C<C:@W1C</C<C0@NormalArial C*@U; g{ H WW@W@-@To test these values I have run a simulation on ADS for N = 7, Return Loss = 30dB, Zo = 50R. You can see the results are in reasonable agreement. The ripple and return loss (S11) agree are not quite right, but the bandwidth is good.7C<C8C0,0,1289C<C:@W1C</C<C0@NormalArial C@Uh  h 3878ࡱ>    !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~Root Entry@96>@)0d!CONTENTS d CONTENTSV30CompObjutings\Chris\My Docum @96>@)#Microsoft Photo Editor 3.0 PictureMSPhotoEditor MSPhotoEd.39qP Dwp}w:w` F` =)x3tXp_-` _-9fw _-fwXw@+_-_- Dw_-,wp8wDwp}w:wtXw@+_-(_-_-Ewhw`QQ@`w`wP`wPYwND Hw2w`wAAP5Fw-ZwAL_-AlX]PDXGOpen1wHbC:\Documents and Settings\Chris\My Documents\Technical\Mathcad\Archive\capcouplrdfilterres1.gif wUHbЖbOK| wU|bXb@b an ExistingXb! 9w !!`CwC:\Documents and Settings\Chris\My Documents\Technical\Mathcad\Archive\capcouplrdfilter\res1.gifbbb !$ 1wPdwxw:wԦwwG-Zw-ZwqZw Hw:wԷD=)x3      !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~