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Doubly TerrnilUlted Elliptic Filten 361
ANTIMET
ELLIF' FLTR.CT12/78,100B
REJECTION.RIPPLE(DB),1/2-DEG(2-15).TYPE(A.B~ORC):
83.3068 .17728767 4 A
U= .392699067 AO= .2~3168244 EP= .414213539
E= .383100151
E= .293985074
E= .159524088
RE=-.0941605422 SE= .447245616
RE=-.232749695 5E= .187680214
RF=-.0386088741 SF= 1.01584498
RF=-.12804916 SF: .9(l9415957
RF=-.239606029 SF= .661764809
RF=-.33:'.472309 SF:::: .248605769
LD RESIS= 1.50000003 (.666666651
L (Cl C (L) PEAl<
-.0294237911 .876331629 6. 18390915
2 1.20559776 1.2296171 2.27723343
~ 1.8230507 1.15516466 1.62104523
4 1.79644462 1.07285916 1.43359222
5 1.70529984 STPBD EDGE= 1.41421359
T£8T5-1.11149158£-04 -7.5083226£-06
Figure 9.23.
Sample run for an antimetric type-a filter.
values of the central capacitor calculated from each port. The second test is
the difference between the sum of all series inductors and a theoretical value.
Most eight-bit-microprocessor personal computers should be accurate for
"half degrees" (number of traps) up to 8. Note the negative element value,
which will always appear in the type-a filter. The schematic representation of
the type-c filter, corresponding to the data in Figure 9.25, is shown in Figure
9.18.
ANTIMET ELLIP FLTR.CT12/78,lQQ8
REJECTION.RIPPLE(DB).1/2-DEG(2-1S).TYP£(A.B.OR C):
83.3068 .17728767 4 B
u~ .392699067 AO= .253168244 EP= .414213539
E::= .383100151
E= .293985074
E~ • 159524088
RE=-.0941605422 BE= .447245616
RE=-.232749695 BE= .187680214
RF=-.0396957664 SF= 1.01621815
RF=-.130545074 SF= .906702149
RF~-.240380105 SF= .655316027
RF=-.329399428 SF= .244461632
LD RESIS= 1.50000002 (.666666658
L(C) C(L) PEAK
.900876092
2 1.22249445 1.25009281 2.41712146
3 1.84099295 1.16996665 1.65767848
4 1.82095152 1.08728732 1.45434413
5 1.72790256 STPBD EDGE= 1.43359223
TESTS-7.84639269E-05 -5.01144678E-06
Figure 9.24.
SampJe run for an anl;rnelr;c type-b fiJler.