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nec2dx.f
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nec2dx.f
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C PROGRAM NEC(INPUT,TAPE5=INPUT,OUTPUT,TAPE11,TAPE12,TAPE13,TAPE14,
C 1TAPE15,TAPE16,TAPE20,TAPE21)
C
C NUMERICAL ELECTROMAGNETICS CODE (NEC2) DEVELOPED AT LAWRENCE
C LIVERMORE LAB., LIVERMORE, CA. (CONTACT G. BURKE AT 510-422-8414
C FOR PROBLEMS WITH THE NEC CODE.)
C FILE CREATED 4/11/80.
C
C ***********NOTICE**********
C THIS COMPUTER CODE MATERIAL WAS PREPARED AS AN ACCOUNT OF WORK
C SPONSORED BY THE UNITED STATES GOVERNMENT. NEITHER THE UNITED
C STATES NOR THE UNITED STATES DEPARTMENT OF ENERGY, NOR ANY OF
C THEIR EMPLOYEES, NOR ANY OF THEIR CONTRACTORS, SUBCONTRACTORS, OR
C THEIR EMPLOYEES, MAKES ANY WARRANTY, EXPRESS OR IMPLIED, OR
C ASSUMES ANY LEGAL LIABILITY OR RESPONSIBILITY FOR THE ACCURACY,
C COMPLETENESS OR USEFULNESS OF ANY INFORMATION, APPARATUS, PRODUCT
C OR PROCESS DISCLOSED, OR REPRESENTS THAT ITS USE WOULD NOT
C INFRINGE PRIVATELY-OWNED RIGHTS.
C
C DOUBLE PRECISION 6/4/85
C
PARAMETER (MAXSEG=1500, MAXMAT=1500)
PARAMETER (IRESRV=MAXMAT**2)
IMPLICIT REAL*8(A-H,O-Z)
CHARACTER AIN*2,ATST*2,INFILE*80,OUTFILE*80
C***
REAL*8 HPOL,PNET
C CHARACTER INMSG*48,OUTMSG*40
C INTEGER*2 GPWNXY(2)
C LOGICAL*4 GetPut,LGTPT
COMPLEX*16 CM,FJ,VSANT,ETH,EPH,ZRATI,CUR,CURI,ZARRAY,ZRATI2
COMPLEX*16 EX,EY,EZ,ZPED,VQD,VQDS,T1,Y11A,Y12A,EPSC,U,U2,XX1,XX2
COMPLEX*16 AR1,AR2,AR3,EPSCF,FRATI
COMMON /DATA/ X(MAXSEG),Y(MAXSEG),Z(MAXSEG),SI(MAXSEG),BI(MAXSEG),
&ALP(MAXSEG),BET(MAXSEG),WLAM,ICON1(2*MAXSEG),ICON2(2*MAXSEG),
&ITAG(2*MAXSEG),ICONX(MAXSEG),LD,N1,N2,N,NP,M1,M2,M,MP,IPSYM
COMMON /CMB/CM(IRESRV)
COMMON /MATPAR/ ICASE,NBLOKS,NPBLK,NLAST,NBLSYM,NPSYM,NLSYM,IMAT,
1ICASX,NBBX,NPBX,NLBX,NBBL,NPBL,NLBL
COMMON/SAVE/EPSR,SIG,SCRWLT,SCRWRT,FMHZ,IP(2*MAXSEG),KCOM
COMMON/CSAVE/COM(19,5)
COMMON /CRNT/ AIR(MAXSEG),AII(MAXSEG),BIR(MAXSEG),BII(MAXSEG),
&CIR(MAXSEG),CII(MAXSEG),CUR(3*MAXSEG)
COMMON /GND/ZRATI,ZRATI2,FRATI,T1,T2,CL,CH,SCRWL,SCRWR,NRADL,
&KSYMP,IFAR,IPERF
COMMON /ZLOAD/ ZARRAY(MAXSEG),NLOAD,NLODF
COMMON/YPARM/Y11A(5),Y12A(20),NCOUP,ICOUP,NCTAG(5),NCSEG(5)
COMMON /SEGJ/ AX(30),BX(30),CX(30),JCO(30),JSNO,ISCON(50),NSCON,
1IPCON(10),NPCON
COMMON/VSORC/VQD(30),VSANT(30),VQDS(30),IVQD(30),ISANT(30),
1IQDS(30),NVQD,NSANT,NQDS
COMMON/NETCX/ZPED,PIN,PNLS,X11R(30),X11I(30),X12R(30),X12I(30),
&X22R(30),X22I(30),NTYP(30),ISEG1(30),ISEG2(30),NEQ,NPEQ,NEQ2,
&NONET,NTSOL,NPRINT,MASYM
COMMON/FPAT/THETS,PHIS,DTH,DPH,RFLD,GNOR,CLT,CHT,EPSR2,SIG2,
&XPR6,PINR,PNLR,PLOSS,XNR,YNR,ZNR,DXNR,DYNR,DZNR,NTH,NPH,IPD,IAVP,
&INOR,IAX,IXTYP,NEAR,NFEH,NRX,NRY,NRZ
COMMON /GGRID/ AR1(11,10,4),AR2(17,5,4),AR3(9,8,4),EPSCF,DXA(3),
1DYA(3),XSA(3),YSA(3),NXA(3),NYA(3)
COMMON/GWAV/U,U2,XX1,XX2,R1,R2,ZMH,ZPH
C***
COMMON /PLOT/ IPLP1,IPLP2,IPLP3,IPLP4
C***
DIMENSION CAB(1),SAB(1),X2(1),Y2(1),Z2(1)
DIMENSION LDTYP(30),LDTAG(30),LDTAGF(30),LDTAGT(30),ZLR(30),
1ZLI(30),ZLC(30)
DIMENSION ATST(22),PNET(6),HPOL(3),IX(2*MAXSEG)
DIMENSION FNORM(200)
DIMENSION T1X(1),T1Y(1),T1Z(1),T2X(1),T2Y(1),T2Z(1)
C***
DIMENSION XTEMP(MAXSEG),YTEMP(MAXSEG),ZTEMP(MAXSEG),
&SITEMP(MAXSEG),BITEMP(MAXSEG)
EQUIVALENCE (CAB,ALP),(SAB,BET),(X2,SI),(Y2,ALP),(Z2,BET)
EQUIVALENCE (T1X,SI),(T1Y,ALP),(T1Z,BET),(T2X,ICON1),(T2Y,ICON2),
1 (T2Z,ITAG)
DATA ATST/'CE','FR','LD','GN','EX','NT','XQ','NE','GD','RP','CM',
1 'NX','EN','TL','PT','KH','NH','PQ','EK','WG','CP','PL'/
DATA HPOL/6HLINEAR,5HRIGHT,4HLEFT/
DATA PNET/6H ,2H ,6HSTRAIG,2HHT,6HCROSSE,1HD/
DATA TA/1.745329252D-02/,CVEL/299.8/
DATA LOADMX,NSMAX,NETMX/30,30,30/,NORMF/200/
706 CONTINUE
C
C History:
C Date Change
C ------- ----------------------------------------------
C 5/04/95 Matrix re-transposed in subroutine FACTR.
C FACTR and SOLVE changed for non-transposed matrix.
C
C***VAX
WRITE(*,700)
700 FORMAT(' ENTER NAME OF INPUT FILE >',$)
701 FORMAT(A)
READ(*,701,ERR=702) INFILE
C IF(INFILE.EQ.' ')INFILE='SYS$INPUT'
OPEN (UNIT=2,FILE=INFILE,STATUS='OLD',ERR=702)
C OPEN (UNIT=2,FILE=INFILE,STATUS='OLD',ACTION='READ',ERR=702)
C OPEN (UNIT=2,FILE=INFILE,STATUS='OLD',READONLY,ERR=702)
707 CONTINUE
WRITE(*,703)
703 FORMAT(' ENTER NAME OF OUTPUT FILE >',$)
READ(*,701,ERR=704) OUTFILE
C IF(OUTFILE.EQ.' ')OUTFILE='SYS$OUTPUT'
C OPEN (UNIT=3,FILE=OUTFILE,STATUS='NEW',ERR=704)
OPEN (UNIT=3,FILE=OUTFILE,STATUS='UNKNOWN',ERR=704)
GO TO 705
702 CALL ERROR
GO TO 706
704 CALL ERROR
GO TO 707
C***MAC
C OPEN IN AND OUT FILES WITH DIALOG BOX FOR MACINTOSH
C
C INMSG='Select nec input file (NEC-2D) '
C OUTMSG='Enter name of output file '
C GPWNXY(1)=50
C GPWNXY(2)=100
C702 LGTPT= GetPut(1,GPWNXY,INMSG,INFILE,IVOL,1,'TEXT')
C IF(.NOT.LGTPT)STOP
C OPEN (UNIT=2,FILE=INFILE,STATUS='OLD',ACTION='READ',ERR=702)
C704 LGTPT= GetPut(0,GPWNXY,OUTMSG,OUTFILE,IVOL,1,'TEXT')
C IF(.NOT.LGTPT)STOP
C OPEN (UNIT=3,FILE=OUTFILE,STATUS='UNKNOWN',ERR=704)
C WRITE(*,*)' NEC-2D RUN IN PROGRESS'
C***MAC
705 CONTINUE
CALL SECONDS(EXTIM)
FJ=(0.,1.)
LD=MAXSEG
1 KCOM=0
C***
IFRTIMW=0
IFRTIMP=0
C***
2 KCOM=KCOM+1
IF (KCOM.GT.5) KCOM=5
READ(2,125)AIN,(COM(I,KCOM),I=1,19)
CALL UPCASE(AIN,AIN,LAIN)
IF(KCOM.GT.1)GO TO 3
WRITE(3,126)
WRITE(3,127)
WRITE(3,128)
3 WRITE(3,129) (COM(I,KCOM),I=1,19)
IF (AIN.EQ.ATST(11)) GO TO 2
IF (AIN.EQ.ATST(1)) GO TO 4
WRITE(3,130)
STOP
4 CONTINUE
DO 5 I=1,LD
5 ZARRAY(I)=(0.,0.)
MPCNT=0
IMAT=0
C
C SET UP GEOMETRY DATA IN SUBROUTINE DATAGN
C
CALL DATAGN
IFLOW=1
IF(IMAT.EQ.0)GO TO 326
C
C CORE ALLOCATION FOR ARRAYS B, C, AND D FOR N.G.F. SOLUTION
C
NEQ=N1+2*M1
NEQ2=N-N1+2*(M-M1)+NSCON+2*NPCON
CALL FBNGF(NEQ,NEQ2,IRESRV,IB11,IC11,ID11,IX11)
GO TO 6
326 NEQ=N+2*M
NEQ2=0
IB11=1
IC11=1
ID11=1
IX11=1
ICASX=0
6 NPEQ=NP+2*MP
WRITE(3,135)
C
C DEFAULT VALUES FOR INPUT PARAMETERS AND FLAGS
C
C***
IPLP1=0
IPLP2=0
IPLP3=0
IPLP4=0
C***
IGO=1
FMHZS=CVEL
NFRQ=1
RKH=1.
IEXK=0
IXTYP=0
NLOAD=0
NONET=0
NEAR=-1
IPTFLG=-2
IPTFLQ=-1
IFAR=-1
ZRATI=(1.,0.)
IPED=0
IRNGF=0
NCOUP=0
ICOUP=0
IF(ICASX.GT.0)GO TO 14
FMHZ=CVEL
NLODF=0
KSYMP=1
NRADL=0
IPERF=0
C
C MAIN INPUT SECTION - STANDARD READ STATEMENT - JUMPS TO APPRO-
C PRIATE SECTION FOR SPECIFIC PARAMETER SET UP
C
14 CALL READMN(2,AIN,ITMP1,ITMP2,ITMP3,ITMP4,TMP1,TMP2,TMP3,TMP4,
&TMP5,TMP6)
MPCNT=MPCNT+1
WRITE(3,137) MPCNT,AIN,ITMP1,ITMP2,ITMP3,ITMP4,TMP1,TMP2,TMP3,
1TMP4,TMP5,TMP6
IF (AIN.EQ.ATST(2)) GO TO 16
IF (AIN.EQ.ATST(3)) GO TO 17
IF (AIN.EQ.ATST(4)) GO TO 21
IF (AIN.EQ.ATST(5)) GO TO 24
IF (AIN.EQ.ATST(6)) GO TO 28
IF (AIN.EQ.ATST(14)) GO TO 28
IF (AIN.EQ.ATST(15)) GO TO 31
IF (AIN.EQ.ATST(18)) GO TO 319
IF (AIN.EQ.ATST(7)) GO TO 37
IF (AIN.EQ.ATST(8)) GO TO 32
IF (AIN.EQ.ATST(17)) GO TO 208
IF (AIN.EQ.ATST(9)) GO TO 34
IF (AIN.EQ.ATST(10)) GO TO 36
IF (AIN.EQ.ATST(16)) GO TO 305
IF (AIN.EQ.ATST(19)) GO TO 320
IF (AIN.EQ.ATST(12)) GO TO 1
IF (AIN.EQ.ATST(20)) GO TO 322
IF (AIN.EQ.ATST(21)) GO TO 304
C***
IF (AIN.EQ.ATST(22)) GO TO 330
C***
IF (AIN.NE.ATST(13)) GO TO 15
CALL SECONDS(TMP1)
TMP1=TMP1-EXTIM
WRITE(3,201) TMP1
STOP
15 WRITE(3,138)
STOP
C
C FREQUENCY PARAMETERS
C
16 IFRQ=ITMP1
IF(ICASX.EQ.0)GO TO 8
WRITE(3,303) AIN
STOP
8 NFRQ=ITMP2
IF (NFRQ.EQ.0) NFRQ=1
FMHZ=TMP1
DELFRQ=TMP2
IF(IPED.EQ.1)ZPNORM=0.
IGO=1
IFLOW=1
GO TO 14
C
C MATRIX INTEGRATION LIMIT
C
305 RKH=TMP1
IF(IGO.GT.2)IGO=2
IFLOW=1
GO TO 14
C
C EXTENDED THIN WIRE KERNEL OPTION
C
320 IEXK=1
IF(ITMP1.EQ.-1)IEXK=0
IF(IGO.GT.2)IGO=2
IFLOW=1
GO TO 14
C
C MAXIMUM COUPLING BETWEEN ANTENNAS
C
304 IF(IFLOW.NE.2)NCOUP=0
ICOUP=0
IFLOW=2
IF(ITMP2.EQ.0)GO TO 14
NCOUP=NCOUP+1
IF(NCOUP.GT.5)GO TO 312
NCTAG(NCOUP)=ITMP1
NCSEG(NCOUP)=ITMP2
IF(ITMP4.EQ.0)GO TO 14
NCOUP=NCOUP+1
IF(NCOUP.GT.5)GO TO 312
NCTAG(NCOUP)=ITMP3
NCSEG(NCOUP)=ITMP4
GO TO 14
312 WRITE(3,313)
STOP
C
C LOADING PARAMETERS
C
17 IF (IFLOW.EQ.3) GO TO 18
NLOAD=0
IFLOW=3
IF (IGO.GT.2) IGO=2
IF (ITMP1.EQ.(-1)) GO TO 14
18 NLOAD=NLOAD+1
IF (NLOAD.LE.LOADMX) GO TO 19
WRITE(3,139)
STOP
19 LDTYP(NLOAD)=ITMP1
LDTAG(NLOAD)=ITMP2
IF (ITMP4.EQ.0) ITMP4=ITMP3
LDTAGF(NLOAD)=ITMP3
LDTAGT(NLOAD)=ITMP4
IF (ITMP4.GE.ITMP3) GO TO 20
WRITE(3,140) NLOAD,ITMP3,ITMP4
STOP
20 ZLR(NLOAD)=TMP1
ZLI(NLOAD)=TMP2
ZLC(NLOAD)=TMP3
GO TO 14
C
C GROUND PARAMETERS UNDER THE ANTENNA
C
21 IFLOW=4
IF(ICASX.EQ.0)GO TO 10
WRITE(3,303) AIN
STOP
10 IF (IGO.GT.2) IGO=2
IF (ITMP1.NE.(-1)) GO TO 22
KSYMP=1
NRADL=0
IPERF=0
GO TO 14
22 IPERF=ITMP1
NRADL=ITMP2
KSYMP=2
EPSR=TMP1
SIG=TMP2
IF (NRADL.EQ.0) GO TO 23
IF(IPERF.NE.2)GO TO 314
WRITE(3,390)
STOP
314 SCRWLT=TMP3
SCRWRT=TMP4
GO TO 14
23 EPSR2=TMP3
SIG2=TMP4
CLT=TMP5
CHT=TMP6
GO TO 14
C
C EXCITATION PARAMETERS
C
24 IF (IFLOW.EQ.5) GO TO 25
NSANT=0
NVQD=0
IPED=0
IFLOW=5
IF (IGO.GT.3) IGO=3
25 MASYM=ITMP4/10
IF (ITMP1.GT.0.AND.ITMP1.NE.5) GO TO 27
IXTYP=ITMP1
NTSOL=0
IF(IXTYP.EQ.0)GO TO 205
NVQD=NVQD+1
IF(NVQD.GT.NSMAX)GO TO 206
IVQD(NVQD)=ISEGNO(ITMP2,ITMP3)
VQD(NVQD)=DCMPLX(TMP1,TMP2)
IF(ABS(VQD(NVQD)).LT.1.D-20)VQD(NVQD)=(1.,0.)
GO TO 207
205 NSANT=NSANT+1
IF (NSANT.LE.NSMAX) GO TO 26
206 WRITE(3,141)
STOP
26 ISANT(NSANT)=ISEGNO(ITMP2,ITMP3)
VSANT(NSANT)=DCMPLX(TMP1,TMP2)
IF (ABS(VSANT(NSANT)).LT.1.D-20) VSANT(NSANT)=(1.,0.)
207 IPED=ITMP4-MASYM*10
ZPNORM=TMP3
IF (IPED.EQ.1.AND.ZPNORM.GT.0) IPED=2
GO TO 14
27 IF (IXTYP.EQ.0.OR.IXTYP.EQ.5) NTSOL=0
IXTYP=ITMP1
NTHI=ITMP2
NPHI=ITMP3
XPR1=TMP1
XPR2=TMP2
XPR3=TMP3
XPR4=TMP4
XPR5=TMP5
XPR6=TMP6
NSANT=0
NVQD=0
THETIS=XPR1
PHISS=XPR2
GO TO 14
C
C NETWORK PARAMETERS
C
28 IF (IFLOW.EQ.6) GO TO 29
NONET=0
NTSOL=0
IFLOW=6
IF (IGO.GT.3) IGO=3
IF (ITMP2.EQ.(-1)) GO TO 14
29 NONET=NONET+1
IF (NONET.LE.NETMX) GO TO 30
WRITE(3,142)
STOP
30 NTYP(NONET)=2
IF (AIN.EQ.ATST(6)) NTYP(NONET)=1
ISEG1(NONET)=ISEGNO(ITMP1,ITMP2)
ISEG2(NONET)=ISEGNO(ITMP3,ITMP4)
X11R(NONET)=TMP1
X11I(NONET)=TMP2
X12R(NONET)=TMP3
X12I(NONET)=TMP4
X22R(NONET)=TMP5
X22I(NONET)=TMP6
IF (NTYP(NONET).EQ.1.OR.TMP1.GT.0.) GO TO 14
NTYP(NONET)=3
X11R(NONET)=-TMP1
GO TO 14
C***
C
C PLOT FLAGS
C
330 IPLP1=ITMP1
IPLP2=ITMP2
IPLP3=ITMP3
IPLP4=ITMP4
OPEN (UNIT=8,FILE='PLTDAT.NEC',STATUS='NEW',ERR=14)
C***
GO TO 14
C
C PRINT CONTROL FOR CURRENT
C
31 IPTFLG=ITMP1
IPTAG=ITMP2
IPTAGF=ITMP3
IPTAGT=ITMP4
IF(ITMP3.EQ.0.AND.IPTFLG.NE.-1)IPTFLG=-2
IF (ITMP4.EQ.0) IPTAGT=IPTAGF
GO TO 14
C
C WRITE CONTROL FOR CHARGE
C
319 IPTFLQ=ITMP1
IPTAQ=ITMP2
IPTAQF=ITMP3
IPTAQT=ITMP4
IF(ITMP3.EQ.0.AND.IPTFLQ.NE.-1)IPTFLQ=-2
IF(ITMP4.EQ.0)IPTAQT=IPTAQF
GO TO 14
C
C NEAR FIELD CALCULATION PARAMETERS
C
208 NFEH=1
GO TO 209
32 NFEH=0
209 IF (.NOT.(IFLOW.EQ.8.AND.NFRQ.NE.1)) GO TO 33
WRITE(3,143)
33 NEAR=ITMP1
NRX=ITMP2
NRY=ITMP3
NRZ=ITMP4
XNR=TMP1
YNR=TMP2
ZNR=TMP3
DXNR=TMP4
DYNR=TMP5
DZNR=TMP6
IFLOW=8
IF (NFRQ.NE.1) GO TO 14
GO TO (41,46,53,71,72), IGO
C
C GROUND REPRESENTATION
C
34 EPSR2=TMP1
SIG2=TMP2
CLT=TMP3
CHT=TMP4
IFLOW=9
GO TO 14
C
C STANDARD OBSERVATION ANGLE PARAMETERS
C
36 IFAR=ITMP1
NTH=ITMP2
NPH=ITMP3
IF (NTH.EQ.0) NTH=1
IF (NPH.EQ.0) NPH=1
IPD=ITMP4/10
IAVP=ITMP4-IPD*10
INOR=IPD/10
IPD=IPD-INOR*10
IAX=INOR/10
INOR=INOR-IAX*10
IF (IAX.NE.0) IAX=1
IF (IPD.NE.0) IPD=1
IF (NTH.LT.2.OR.NPH.LT.2) IAVP=0
IF (IFAR.EQ.1) IAVP=0
THETS=TMP1
PHIS=TMP2
DTH=TMP3
DPH=TMP4
RFLD=TMP5
GNOR=TMP6
IFLOW=10
GO TO (41,46,53,71,78), IGO
C
C WRITE NUMERICAL GREEN'S FUNCTION TAPE
C
322 IFLOW=12
IF(ICASX.EQ.0)GO TO 301
WRITE(3,302)
STOP
301 IRNGF=IRESRV/2
GO TO (41,46,52,52,52),IGO
C
C EXECUTE CARD - CALC. INCLUDING RADIATED FIELDS
C
37 IF (IFLOW.EQ.10.AND.ITMP1.EQ.0) GO TO 14
IF (NFRQ.EQ.1.AND.ITMP1.EQ.0.AND.IFLOW.GT.7) GO TO 14
IF (ITMP1.NE.0) GO TO 39
IF (IFLOW.GT.7) GO TO 38
IFLOW=7
GO TO 40
38 IFLOW=11
GO TO 40
39 IFAR=0
RFLD=0.
IPD=0
IAVP=0
INOR=0
IAX=0
NTH=91
NPH=1
THETS=0.
PHIS=0.
DTH=1.0
DPH=0.
IF (ITMP1.EQ.2) PHIS=90.
IF (ITMP1.NE.3) GO TO 40
NPH=2
DPH=90.
40 GO TO (41,46,53,71,78), IGO
C
C END OF THE MAIN INPUT SECTION
C
C BEGINNING OF THE FREQUENCY DO LOOP
C
41 MHZ=1
C***
IF(N.EQ.0 .OR. IFRTIMW .EQ. 1)GO TO 406
IFRTIMW=1
DO 445 I=1,N
XTEMP(I)=X(I)
YTEMP(I)=Y(I)
ZTEMP(I)=Z(I)
SITEMP(I)=SI(I)
BITEMP(I)=BI(I)
445 CONTINUE
406 IF(M.EQ.0 .OR. IFRTIMP .EQ. 1)GO TO 407
IFRTIMP=1
J=LD+1
DO 545 I=1,M
J=J-1
XTEMP(J)=X(J)
YTEMP(J)=Y(J)
ZTEMP(J)=Z(J)
BITEMP(J)=BI(J)
545 CONTINUE
407 CONTINUE
FMHZ1=FMHZ
C***
C CORE ALLOCATION FOR PRIMARY INTERACTON MATRIX. (A)
IF(IMAT.EQ.0)CALL FBLOCK(NPEQ,NEQ,IRESRV,IRNGF,IPSYM)
42 IF (MHZ.EQ.1) GO TO 44
IF (IFRQ.EQ.1) GO TO 43
C FMHZ=FMHZ+DELFRQ
C***
FMHZ=FMHZ1+(MHZ-1)*DELFRQ
GO TO 44
43 FMHZ=FMHZ*DELFRQ
44 FR=FMHZ/CVEL
C***
WLAM=CVEL/FMHZ
WRITE(3,145) FMHZ,WLAM
WRITE(3,196) RKH
IF(IEXK.EQ.1)WRITE(3,321)
C FREQUENCY SCALING OF GEOMETRIC PARAMETERS
C*** FMHZS=FMHZ
IF(N.EQ.0)GO TO 306
DO 45 I=1,N
C***
X(I)=XTEMP(I)*FR
Y(I)=YTEMP(I)*FR
Z(I)=ZTEMP(I)*FR
SI(I)=SITEMP(I)*FR
45 BI(I)=BITEMP(I)*FR
C***
306 IF(M.EQ.0)GO TO 307
FR2=FR*FR
J=LD+1
DO 245 I=1,M
J=J-1
C***
X(J)=XTEMP(J)*FR
Y(J)=YTEMP(J)*FR
Z(J)=ZTEMP(J)*FR
245 BI(J)=BITEMP(J)*FR2
C***
307 IGO=2
C STRUCTURE SEGMENT LOADING
46 WRITE(3,146)
IF(NLOAD.NE.0) CALL LOAD(LDTYP,LDTAG,LDTAGF,LDTAGT,ZLR,ZLI,ZLC)
IF(NLOAD.EQ.0.AND.NLODF.EQ.0)WRITE(3,147)
IF(NLOAD.EQ.0.AND.NLODF.NE.0)WRITE(3,327)
C GROUND PARAMETER
WRITE(3,148)
IF (KSYMP.EQ.1) GO TO 49
FRATI=(1.,0.)
IF (IPERF.EQ.1) GO TO 48
IF(SIG.LT.0.)SIG=-SIG/(59.96*WLAM)
EPSC=DCMPLX(EPSR,-SIG*WLAM*59.96)
ZRATI=1./SQRT(EPSC)
U=ZRATI
U2=U*U
IF (NRADL.EQ.0) GO TO 47
SCRWL=SCRWLT/WLAM
SCRWR=SCRWRT/WLAM
T1=FJ*2367.067D+0/DFLOAT(NRADL)
T2=SCRWR*DFLOAT(NRADL)
WRITE(3,170) NRADL,SCRWLT,SCRWRT
WRITE(3,149)
47 IF(IPERF.EQ.2)GO TO 328
WRITE(3,391)
GO TO 329
328 CALL SOMNEC(EPSR, SIG, FMHZ)
FRATI=(EPSC-1.)/(EPSC+1.)
IF(ABS((EPSCF-EPSC)/EPSC).LT.1.D-3)GO TO 400
WRITE(3,393) EPSCF,EPSC
STOP
400 WRITE(3,392)
329 WRITE(3,150) EPSR,SIG,EPSC
GO TO 50
48 WRITE(3,151)
GO TO 50
49 WRITE(3,152)
50 CONTINUE
C * * *
C FILL AND FACTOR PRIMARY INTERACTION MATRIX
C
CALL SECONDS (TIM1)
IF(ICASX.NE.0)GO TO 324
CALL CMSET(NEQ,CM,RKH,IEXK)
CALL SECONDS (TIM2)
TIM=TIM2-TIM1
CALL FACTRS(NPEQ,NEQ,CM,IP,IX,11,12,13,14)
GO TO 323
C
C N.G.F. - FILL B, C, AND D AND FACTOR D-C(INV(A)B)
C
C ****
324 IF(NEQ2.EQ.0)GO TO 333
C ****
CALL CMNGF(CM(IB11),CM(IC11),CM(ID11),NPBX,NEQ,NEQ2,RKH,IEXK)
CALL SECONDS (TIM2)
TIM=TIM2-TIM1
CALL FACGF(CM,CM(IB11),CM(IC11),CM(ID11),CM(IX11),IP,IX,NP,N1,MP,
1M1,NEQ,NEQ2)
323 CALL SECONDS (TIM1)
TIM2=TIM1-TIM2
WRITE(3,153) TIM,TIM2
333 IGO=3
NTSOL=0
IF(IFLOW.NE.12)GO TO 53
C WRITE N.G.F. FILE
52 CALL GFOUT
GO TO 14
C
C EXCITATION SET UP (RIGHT HAND SIDE, -E INC.)
C
53 NTHIC=1
NPHIC=1
INC=1
NPRINT=0
54 IF (IXTYP.EQ.0.OR.IXTYP.EQ.5) GO TO 56
IF (IPTFLG.LE.0.OR.IXTYP.EQ.4) WRITE(3,154)
TMP5=TA*XPR5
TMP4=TA*XPR4
IF (IXTYP.NE.4) GO TO 55
TMP1=XPR1/WLAM
TMP2=XPR2/WLAM
TMP3=XPR3/WLAM
TMP6=XPR6/(WLAM*WLAM)
WRITE(3,156) XPR1,XPR2,XPR3,XPR4,XPR5,XPR6
GO TO 56
55 TMP1=TA*XPR1
TMP2=TA*XPR2
TMP3=TA*XPR3
TMP6=XPR6
IF (IPTFLG.LE.0) WRITE(3,155) XPR1,XPR2,XPR3,HPOL(IXTYP),XPR6
56 CALL ETMNS (TMP1,TMP2,TMP3,TMP4,TMP5,TMP6,IXTYP,CUR)
C
C MATRIX SOLVING (NETWK CALLS SOLVES)
C
IF (NONET.EQ.0.OR.INC.GT.1) GO TO 60
WRITE(3,158)
ITMP3=0
ITMP1=NTYP(1)
DO 59 I=1,2
IF (ITMP1.EQ.3) ITMP1=2
IF (ITMP1.EQ.2) WRITE(3,159)
IF (ITMP1.EQ.1) WRITE(3,160)
DO 58 J=1,NONET
ITMP2=NTYP(J)
IF ((ITMP2/ITMP1).EQ.1) GO TO 57
ITMP3=ITMP2
GO TO 58
57 ITMP4=ISEG1(J)
ITMP5=ISEG2(J)
IF (ITMP2.GE.2.AND.X11I(J).LE.0.) X11I(J)=WLAM*SQRT((X(ITMP5)-
1 X(ITMP4))**2+(Y(ITMP5)-Y(ITMP4))**2+(Z(ITMP5)-Z(ITMP4))**2)
WRITE(3,157) ITAG(ITMP4),ITMP4,ITAG(ITMP5),ITMP5,X11R(J),X11
1I(J),X12R(J),X12I(J),X22R(J),X22I(J),PNET(2*ITMP2-1),PNET(2*ITMP2)
58 CONTINUE
IF (ITMP3.EQ.0) GO TO 60
ITMP1=ITMP3
59 CONTINUE
60 CONTINUE
IF (INC.GT.1.AND.IPTFLG.GT.0) NPRINT=1
CALL NETWK(CM,CM(IB11),CM(IC11),CM(ID11),IP,CUR)
NTSOL=1
IF (IPED.EQ.0) GO TO 61
ITMP1=MHZ+4*(MHZ-1)
IF (ITMP1.GT.(NORMF-3)) GO TO 61
FNORM(ITMP1)=DREAL(ZPED)
FNORM(ITMP1+1)=DIMAG(ZPED)
FNORM(ITMP1+2)=ABS(ZPED)
FNORM(ITMP1+3)=CANG(ZPED)
IF (IPED.EQ.2) GO TO 61
IF (FNORM(ITMP1+2).GT.ZPNORM) ZPNORM=FNORM(ITMP1+2)
61 CONTINUE
C
C PRINTING STRUCTURE CURRENTS
C
IF(N.EQ.0)GO TO 308
IF (IPTFLG.EQ.(-1)) GO TO 63
IF (IPTFLG.GT.0) GO TO 62
WRITE(3,161)
WRITE(3,162)
GO TO 63
62 IF (IPTFLG.EQ.3.OR.INC.GT.1) GO TO 63
WRITE(3,163) XPR3,HPOL(IXTYP),XPR6
63 PLOSS=0.
ITMP1=0
JUMP=IPTFLG+1
DO 69 I=1,N
CURI=CUR(I)*WLAM
CMAG=ABS(CURI)
PH=CANG(CURI)
IF (NLOAD.EQ.0.AND.NLODF.EQ.0) GO TO 64
IF (ABS(DREAL(ZARRAY(I))).LT.1.D-20) GO TO 64
PLOSS=PLOSS+.5*CMAG*CMAG*DREAL(ZARRAY(I))*SI(I)
64 IF (JUMP) 68,69,65
65 IF (IPTAG.EQ.0) GO TO 66
IF (ITAG(I).NE.IPTAG) GO TO 69
66 ITMP1=ITMP1+1
IF (ITMP1.LT.IPTAGF.OR.ITMP1.GT.IPTAGT) GO TO 69
IF (IPTFLG.EQ.0) GO TO 68
IF (IPTFLG.LT.2.OR.INC.GT.NORMF) GO TO 67
FNORM(INC)=CMAG
ISAVE=I
67 IF (IPTFLG.NE.3) WRITE(3,164) XPR1,XPR2,CMAG,PH,I
GO TO 69
68 WRITE(3,165) I,ITAG(I),X(I),Y(I),Z(I),SI(I),CURI,CMAG,PH
C***
IF(IPLP1 .NE. 1) GO TO 69
IF(IPLP2 .EQ. 1) WRITE(8,*) CURI
IF(IPLP2 .EQ. 2) WRITE(8,*) CMAG,PH
C***
69 CONTINUE
IF(IPTFLQ.EQ.(-1))GO TO 308
WRITE(3,315)
ITMP1=0
FR=1.D-6/FMHZ
DO 316 I=1,N
IF(IPTFLQ.EQ.(-2))GO TO 318
IF(IPTAQ.EQ.0)GO TO 317
IF(ITAG(I).NE.IPTAQ)GO TO 316
317 ITMP1=ITMP1+1
IF(ITMP1.LT.IPTAQF.OR.ITMP1.GT.IPTAQT)GO TO 316
318 CURI=FR*DCMPLX(-BII(I),BIR(I))
CMAG=ABS(CURI)
PH=CANG(CURI)
WRITE(3,165) I,ITAG(I),X(I),Y(I),Z(I),SI(I),CURI,CMAG,PH
316 CONTINUE
308 IF(M.EQ.0)GO TO 310
WRITE(3,197)
J=N-2
ITMP1=LD+1
DO 309 I=1,M
J=J+3
ITMP1=ITMP1-1
EX=CUR(J)
EY=CUR(J+1)
EZ=CUR(J+2)
ETH=EX*T1X(ITMP1)+EY*T1Y(ITMP1)+EZ*T1Z(ITMP1)
EPH=EX*T2X(ITMP1)+EY*T2Y(ITMP1)+EZ*T2Z(ITMP1)
ETHM=ABS(ETH)
ETHA=CANG(ETH)
EPHM=ABS(EPH)
EPHA=CANG(EPH)
C309 WRITE(3,198) I,X(ITMP1),Y(ITMP1),Z(ITMP1),ETHM,ETHA,EPHM,EPHA,E
C 1X,EY, EZ
C***
WRITE(3,198) I,X(ITMP1),Y(ITMP1),Z(ITMP1),ETHM,ETHA,EPHM,EPHA,E
1X,EY,EZ
IF(IPLP1 .NE. 1) GO TO 309
IF(IPLP3 .EQ. 1) WRITE(8,*) EX
IF(IPLP3 .EQ. 2) WRITE(8,*) EY
IF(IPLP3 .EQ. 3) WRITE(8,*) EZ
IF(IPLP3 .EQ. 4) WRITE(8,*) EX,EY,EZ
309 CONTINUE
C***
310 IF (IXTYP.NE.0.AND.IXTYP.NE.5) GO TO 70
TMP1=PIN-PNLS-PLOSS
TMP2=100.*TMP1/PIN
WRITE(3,166) PIN,TMP1,PLOSS,PNLS,TMP2
70 CONTINUE
IGO=4
IF(NCOUP.GT.0)CALL COUPLE(CUR,WLAM)
IF (IFLOW.NE.7) GO TO 71
IF (IXTYP.GT.0.AND.IXTYP.LT.4) GO TO 113
IF (NFRQ.NE.1) GO TO 120
WRITE(3,135)
GO TO 14
71 IGO=5
C
C NEAR FIELD CALCULATION
C
72 IF (NEAR.EQ.(-1)) GO TO 78
CALL NFPAT
IF (MHZ.EQ.NFRQ) NEAR=-1
IF (NFRQ.NE.1) GO TO 78
WRITE(3,135)
GO TO 14
C
C STANDARD FAR FIELD CALCULATION
C
78 IF(IFAR.EQ.-1)GO TO 113
PINR=PIN
PNLR=PNLS
CALL RDPAT
113 IF (IXTYP.EQ.0.OR.IXTYP.GE.4) GO TO 119
NTHIC=NTHIC+1
INC=INC+1
XPR1=XPR1+XPR4
IF (NTHIC.LE.NTHI) GO TO 54
NTHIC=1
XPR1=THETIS
XPR2=XPR2+XPR5
NPHIC=NPHIC+1
IF (NPHIC.LE.NPHI) GO TO 54
NPHIC=1
XPR2=PHISS
IF (IPTFLG.LT.2) GO TO 119
C NORMALIZED RECEIVING PATTERN PRINTED
ITMP1=NTHI*NPHI
IF (ITMP1.LE.NORMF) GO TO 114
ITMP1=NORMF
WRITE(3,181)
114 TMP1=FNORM(1)
DO 115 J=2,ITMP1
IF (FNORM(J).GT.TMP1) TMP1=FNORM(J)
115 CONTINUE
WRITE(3,182) TMP1,XPR3,HPOL(IXTYP),XPR6,ISAVE
DO 118 J=1,NPHI
ITMP2=NTHI*(J-1)
DO 116 I=1,NTHI
ITMP3=I+ITMP2
IF (ITMP3.GT.ITMP1) GO TO 117
TMP2=FNORM(ITMP3)/TMP1
TMP3=DB20(TMP2)
WRITE(3,183) XPR1,XPR2,TMP3,TMP2
XPR1=XPR1+XPR4
116 CONTINUE
117 XPR1=THETIS
XPR2=XPR2+XPR5
118 CONTINUE
XPR2=PHISS
119 IF (MHZ.EQ.NFRQ) IFAR=-1
IF (NFRQ.NE.1) GO TO 120
WRITE(3,135)
GO TO 14
120 MHZ=MHZ+1
IF (MHZ.LE.NFRQ) GO TO 42
IF (IPED.EQ.0) GO TO 123
IF(NVQD.LT.1)GO TO 199
WRITE(3,184) IVQD(NVQD),ZPNORM
GO TO 204
199 WRITE(3,184) ISANT(NSANT),ZPNORM
204 ITMP1=NFRQ
IF (ITMP1.LE.(NORMF/4)) GO TO 121
ITMP1=NORMF/4
WRITE(3,185)
121 IF (IFRQ.EQ.0) TMP1=FMHZ-(NFRQ-1)*DELFRQ
IF (IFRQ.EQ.1) TMP1=FMHZ/(DELFRQ**(NFRQ-1))
DO 122 I=1,ITMP1
ITMP2=I+4*(I-1)
TMP2=FNORM(ITMP2)/ZPNORM
TMP3=FNORM(ITMP2+1)/ZPNORM
TMP4=FNORM(ITMP2+2)/ZPNORM
TMP5=FNORM(ITMP2+3)
WRITE(3,186) TMP1,FNORM(ITMP2),FNORM(ITMP2+1),FNORM(ITMP2+2),
1FNORM(ITMP2+3),TMP2,TMP3,TMP4,TMP5
IF (IFRQ.EQ.0) TMP1=TMP1+DELFRQ
IF (IFRQ.EQ.1) TMP1=TMP1*DELFRQ
122 CONTINUE
WRITE(3,135)
123 CONTINUE
NFRQ=1
MHZ=1
GO TO 14
125 FORMAT (A2,19A4)
126 FORMAT ('1')
127 FORMAT (///,33X,'*********************************************',
&//,36X,'NUMERICAL ELECTROMAGNETICS CODE (NEC-2D)',//,33X,
2 '*********************************************')
128 FORMAT (////,37X,'- - - - COMMENTS - - - -',//)
129 FORMAT (25X,20A4)
130 FORMAT (///,10X,'INCORRECT LABEL FOR A COMMENT CARD')
135 FORMAT (/////)
136 FORMAT (A2,I3,3I5,6E10.3)
137 FORMAT (1X,'***** DATA CARD NO.',I3,3X,A2,1X,I3,3(1X,I5),
1 6(1X,1P,E12.5))
138 FORMAT (///,10X,'FAULTY DATA CARD LABEL AFTER GEOMETRY SECTION')
139 FORMAT (///,10X,'NUMBER OF LOADING CARDS EXCEEDS STORAGE ALLOTTED'
1)
140 FORMAT (///,10X,'DATA FAULT ON LOADING CARD NO.=',I5,5X,
&'ITAG STEP1=',I5,' IS GREATER THAN ITAG STEP2=',I5)
141 FORMAT (///,10X,'NUMBER OF EXCITATION CARDS EXCEEDS STORAGE ALLO',
&'TTED')
142 FORMAT (///,10X,'NUMBER OF NETWORK CARDS EXCEEDS STORAGE ALLOTTE',
&'D')
143 FORMAT(///,10X,'WHEN MULTIPLE FREQUENCIES ARE REQUESTED, ONLY ON',
&'E NEAR FIELD CARD CAN BE USED -',/,10X,'LAST CARD READ IS USED')
145 FORMAT (////,33X,'- - - - - - FREQUENCY - - - - - -',//,36X,
&'FREQUENCY=',1P,E11.4,' MHZ',/,36X,'WAVELENGTH=',E11.4,' METERS')
146 FORMAT (///,30X,' - - - STRUCTURE IMPEDANCE LOADING - - -')
147 FORMAT (/ ,35X,'THIS STRUCTURE IS NOT LOADED')
148 FORMAT (///,34X,'- - - ANTENNA ENVIRONMENT - - -',/)
149 FORMAT (40X,'MEDIUM UNDER SCREEN -')
150 FORMAT (40X,'RELATIVE DIELECTRIC CONST.=',F7.3,/,40X,'CONDUCTIV',
&'ITY=',1P,E10.3,' MHOS/METER',/,40X,'COMPLEX DIELECTRIC CONSTANT='
&,2E12.5)
151 FORMAT ( 42X,'PERFECT GROUND')
152 FORMAT ( 44X,'FREE SPACE')
153 FORMAT (///,32X,'- - - MATRIX TIMING - - -',//,24X,'FILL=',F9.3,
1' SEC., FACTOR=',F9.3,' SEC.')
154 FORMAT (///,40X,'- - - EXCITATION - - -')
155 FORMAT (/,4X,'PLANE WAVE',4X,'THETA=',F7.2,' DEG, PHI=',F7.2,
&' DEG, ETA=',F7.2,' DEG, TYPE -',A6,'= AXIAL RATIO=',F6.3)
156 FORMAT (/,31X,'POSITION (METERS)',14X,'ORIENTATION (DEG)=',/,28X,
1'X',12X,'Y',12X,'Z',10X,'ALPHA',5X,'BETA',4X,'DIPOLE MOMENT',//
2 ,4X,'CURRENT SOURCE',1X,3(3X,F10.5),1X,2(3X,F7.2),4X,F8.3)
157 FORMAT (4X,4(I5,1X),1P,6(3X,E11.4),3X,A6,A2)
158 FORMAT (///,44X,'- - - NETWORK DATA - - -')
159 FORMAT (/,6X,'- FROM - - TO -',11X,'TRANSMISSION LINE',15X,
&'- - SHUNT ADMITTANCES (MHOS) - -',14X,'LINE',/,6X,'TAG SEG.'
2,' TAG SEG.',6X,'IMPEDANCE',6X,'LENGTH',12X,'- END ONE -',17X,
3'- END TWO -',12X,'TYPE',/,6X,'NO. NO. NO. NO.',9X,'OHMS',
&8X,'METERS',9X,'REAL',10X,'IMAG.',9X,'REAL',10X,'IMAG.')
160 FORMAT (/,6X,'- FROM -',4X,'- TO -',26X,'- - ADMITTANCE MATRIX',
1' ELEMENTS (MHOS) - -',/,6X,'TAG SEG. TAG SEG.',13X,'(ON',
2'E,ONE)',19X,'(ONE,TWO)',19X,'(TWO,TWO)',/ ,6X,'NO. NO. NO',
3'. NO.',8X,'REAL',10X,'IMAG.',9X,'REAL',10X,'IMAG.',9X,'REAL',
4 10X,'IMAG.')
161 FORMAT (///,29X,'- - - CURRENTS AND LOCATION - - -',//,33X,
&'DISTANCES IN WAVELENGTHS')
162 FORMAT ( //,2X,'SEG.',2X,'TAG',4X,'COORD. OF SEG. CENTER',5X,
1 'SEG.',12X,'- - - CURRENT (AMPS) - - -',/,2X,'NO.',3X,'NO.',
2 5X,'X',8X,'Y',8X,'Z',6X,'LENGTH',5X,'REAL',8X,'IMAG.',7X,'MAG.',
3 8X,'PHASE')
163 FORMAT (///,33X,'- - - RECEIVING PATTERN PARAMETERS - - -',/,43X,
&'ETA=',F7.2,' DEGREES',/,43X,'TYPE -',A6,/,43X,'AXIAL RATIO=',
& F6.3,//,11X,'THETA',6X,'PHI',10X,'- CURRENT -',9X,'SEG',/,
&11X,'(DEG)',5X,'(DEG)',7X,'MAGNITUDE',4X,'PHASE',6X,'NO.',/)
164 FORMAT (10X,2(F7.2,3X),1X,1P,E11.4,3X,0P,F7.2,4X,I5)
165 FORMAT (1X,2I5,3F9.4,F9.5,1X,1P,3E12.4,0P,F9.3)
166 FORMAT (///,40X,'- - - POWER BUDGET - - -',//,43X,'INPUT POWER =
&',1P,E11.4,' WATTS',/ ,43X,'RADIATED POWER=',E11.4,' WATTS',
&/,43X,'STRUCTURE LOSS=',E11.4,' WATTS',/,43X,'NETWORK LOSS =',
&E11.4,' WATTS',/,43X,'EFFICIENCY =',0P,F7.2,' PERCENT')
170 FORMAT (40X,'RADIAL WIRE GROUND SCREEN',/,40X,I5,' WIRES',/,40X,
1'WIRE LENGTH=',F8.2,' METERS',/,40X,'WIRE RADIUS=',1P,E10.3,
2' METERS')
181 FORMAT (///,4X,'RECEIVING PATTERN STORAGE TOO SMALL,ARRAY TRUNCA',
1'TED')
182 FORMAT (///,32X,'- - - NORMALIZED RECEIVING PATTERN - - -',/,41X,
1'NORMALIZATION FACTOR=',1P,E11.4,/,41X,'ETA=',0P,F7.2,' DEGREES',
2/,41X,'TYPE -',A6,/,41X,'AXIAL RATIO=',F6.3,/,41X,'SEGMENT NO.=',