Hi all,
I am trying to model a helix antenna on a ground plane using MININEC
pro for windows.
I approximated each turn with 6 wires and made a 130 turn, 5 cm high
helix with 1.2 cm diameter. The impedance across the frequency is
very large and I can't see a resonance. Can anyone tell me what is
wrong with my model?
regards,
Sooliam
Here is the summary of the model
Number of wires = 180
current nodes = 180
minimum maximum
Individual wires wire value wire value
segment length 160 .605757E+00 125 .605767E+00
segment/radius ratio 160 605.7573 125 605.7672
radius 1 .1E-02 1 .1E-02
ELECTRICAL DESCRIPTION
Frequencies (MHz)
frequency no. of segment length (wavelengths)
no. lowest step steps minimum maximum
1 10. 10. 50 .101027E-01 .202057E-03
Sources
source node sector magnitude phase type
1 1 1 1. 0 voltage
GEOMETRY
Dimensions in centimeters
Environment: PERFECT GROUND
wire caps X Y Z radius segs
1 none .6E+00 0 0 .1E-02 1
.3E+00 .519615E+00 .833333E-01
2 none .3E+00 .519615E+00 .833333E-01 .1E-02 1
-.3E+00 .519615E+00 .166667E+00
3 none -.3E+00 .519615E+00 .166667E+00 .1E-02 1
-.6E+00 -.524537E-07 .25E+00
4 none -.6E+00 -.524537E-07 .25E+00 .1E-02 1
-.3E+00 -.519615E+00 .333333E+00
5 none -.3E+00 -.519615E+00 .333333E+00 .1E-02 1
.3E+00 -.519615E+00 .416667E+00
6 none .3E+00 -.519615E+00 .416667E+00 .1E-02 1
.6E+00 .104907E-06 .5E+00
7 none .6E+00 .104907E-06 .5E+00 .1E-02 1
.3E+00 .519615E+00 .583333E+00
8 none .3E+00 .519615E+00 .583333E+00 .1E-02 1
-.3E+00 .519615E+00 .666667E+00
9 none -.3E+00 .519615E+00 .666667E+00 .1E-02 1
-.6E+00 -.143099E-07 .75E+00
10 none -.6E+00 -.143099E-07 .75E+00 .1E-02 1
-.3E+00 -.519615E+00 .833333E+00
11 none -.3E+00 -.519615E+00 .833333E+00 .1E-02 1
.3E+00 -.519615E+00 .916667E+00
12 none .3E+00 -.519615E+00 .916667E+00 .1E-02 1
.6E+00 .209815E-06 1.
13 none .6E+00 .209815E-06 1. .1E-02 1
.3E+00 .519615E+00 1.083333
14 none .3E+00 .519615E+00 1.083333 .1E-02 1
-.3E+00 .519615E+00 1.166667
15 none -.3E+00 .519615E+00 1.166667 .1E-02 1
-.6E+00 -.405319E-06 1.25
16 none -.6E+00 -.405319E-06 1.25 .1E-02 1
-.3E+00 -.519615E+00 1.333333
17 none -.3E+00 -.519615E+00 1.333333 .1E-02 1
.3E+00 -.519615E+00 1.416667
18 none .3E+00 -.519615E+00 1.416667 .1E-02 1
.6E+00 .286197E-07 1.5
19 none .6E+00 .286197E-07 1.5 .1E-02 1
.3E+00 .519615E+00 1.583333
20 none .3E+00 .519615E+00 1.583333 .1E-02 1
-.3E+00 .519615E+00 1.666667
21 none -.3E+00 .519615E+00 1.666667 .1E-02 1
-.6E+00 -.796329E-06 1.75
22 none -.6E+00 -.796329E-06 1.75 .1E-02 1
-.299999E+00 -.519616E+00 1.833333
23 none -.299999E+00 -.519616E+00 1.833333 .1E-02 1
.3E+00 -.519615E+00 1.916667
24 none .3E+00 -.519615E+00 1.916667 .1E-02 1
.6E+00 .419629E-06 2.
25 none .6E+00 .419629E-06 2. .1E-02 1
.3E+00 .519615E+00 2.083333
26 none .3E+00 .519615E+00 2.083333 .1E-02 1
-.3E+00 .519615E+00 2.166667
27 none -.3E+00 .519615E+00 2.166667 .1E-02 1
-.6E+00 -.429296E-07 2.25
28 none -.6E+00 -.429296E-07 2.25 .1E-02 1
-.299999E+00 -.519616E+00 2.333333
29 none -.299999E+00 -.519616E+00 2.333333 .1E-02 1
.300001E+00 -.519615E+00 2.416667
30 none .300001E+00 -.519615E+00 2.416667 .1E-02 1
.6E+00 .810639E-06 2.5
31 none .6E+00 .810639E-06 2.5 .1E-02 1
.3E+00 .519615E+00 2.583333
32 none .3E+00 .519615E+00 2.583333 .1E-02 1
-.3E+00 .519615E+00 2.666667
33 none -.3E+00 .519615E+00 2.666667 .1E-02 1
-.6E+00 -.157835E-05 2.75
34 none -.6E+00 -.157835E-05 2.75 .1E-02 1
-.3E+00 -.519615E+00 2.833333
35 none -.3E+00 -.519615E+00 2.833333 .1E-02 1
.300001E+00 -.519615E+00 2.916667
36 none .300001E+00 -.519615E+00 2.916667 .1E-02 1
.6E+00 .572394E-07 3.
37 none .6E+00 .572394E-07 3. .1E-02 1
.299999E+00 .519616E+00 3.083333
38 none .299999E+00 .519616E+00 3.083333 .1E-02 1
-.3E+00 .519615E+00 3.166667
39 none -.3E+00 .519615E+00 3.166667 .1E-02 1
-.6E+00 -.824949E-06 3.25
40 none -.6E+00 -.824949E-06 3.25 .1E-02 1
-.3E+00 -.519615E+00 3.333333
41 none -.3E+00 -.519615E+00 3.333333 .1E-02 1
.300001E+00 -.519615E+00 3.416667
42 none .300001E+00 -.519615E+00 3.416667 .1E-02 1
.6E+00 .159266E-05 3.5
43 none .6E+00 .159266E-05 3.5 .1E-02 1
.3E+00 .519615E+00 3.583333
44 none .3E+00 .519615E+00 3.583333 .1E-02 1
-.300001E+00 .519615E+00 3.666667
45 none -.300001E+00 .519615E+00 3.666667 .1E-02 1
-.6E+00 -.715493E-07 3.75
46 none -.6E+00 -.715493E-07 3.75 .1E-02 1
-.299999E+00 -.519616E+00 3.833333
47 none -.299999E+00 -.519616E+00 3.833333 .1E-02 1
.3E+00 -.519615E+00 3.916667
48 none .3E+00 -.519615E+00 3.916667 .1E-02 1
.6E+00 .839259E-06 4.
49 none .6E+00 .839259E-06 4. .1E-02 1
.299998E+00 .519616E+00 4.083333
50 none .299998E+00 .519616E+00 4.083333 .1E-02 1
-.300001E+00 .519615E+00 4.166667
51 none -.300001E+00 .519615E+00 4.166667 .1E-02 1
-.6E+00 -.160697E-05 4.25
52 none -.6E+00 -.160697E-05 4.25 .1E-02 1
-.3E+00 -.519615E+00 4.333333
53 none -.3E+00 -.519615E+00 4.333333 .1E-02 1
.300001E+00 -.519615E+00 4.416667
54 none .300001E+00 -.519615E+00 4.416667 .1E-02 1
.6E+00 .858591E-07 4.5
55 none .6E+00 .858591E-07 4.5 .1E-02 1
.299999E+00 .519616E+00 4.583333
56 none .299999E+00 .519616E+00 4.583333 .1E-02 1
-.300002E+00 .519614E+00 4.666667
57 none -.300002E+00 .519614E+00 4.666667 .1E-02 1
-.6E+00 -.853569E-06 4.75
58 none -.6E+00 -.853569E-06 4.75 .1E-02 1
-.299998E+00 -.519616E+00 4.833333
59 none -.299998E+00 -.519616E+00 4.833333 .1E-02 1
.300001E+00 -.519615E+00 4.916667
60 none .300001E+00 -.519615E+00 4.916667 .1E-02 1
.6E+00 .162128E-05 5.
61 none .6E+00 .162128E-05 5. .1E-02 1
.3E+00 .519615E+00 5.083333
62 none .3E+00 .519615E+00 5.083333 .1E-02 1
-.299999E+00 .519616E+00 5.166667
63 none -.299999E+00 .519616E+00 5.166667 .1E-02 1
-.6E+00 -.238899E-05 5.25
64 none -.6E+00 -.238899E-05 5.25 .1E-02 1
-.299999E+00 -.519616E+00 5.333333
65 none -.299999E+00 -.519616E+00 5.333333 .1E-02 1
.3E+00 -.519615E+00 5.416667
66 none .3E+00 -.519615E+00 5.416667 .1E-02 1
.6E+00 .31567E-05 5.5
67 none .6E+00 .31567E-05 5.5 .1E-02 1
.299998E+00 .519616E+00 5.583333
68 none .299998E+00 .519616E+00 5.583333 .1E-02 1
-.300001E+00 .519615E+00 5.666667
69 none -.300001E+00 .519615E+00 5.666667 .1E-02 1
-.6E+00 .653231E-06 5.75
70 none -.6E+00 .653231E-06 5.75 .1E-02 1
-.299998E+00 -.519617E+00 5.833333
71 none -.299998E+00 -.519617E+00 5.833333 .1E-02 1
.300001E+00 -.519615E+00 5.916667
72 none .300001E+00 -.519615E+00 5.916667 .1E-02 1
.6E+00 .114479E-06 6.
73 none .6E+00 .114479E-06 6. .1E-02 1
.299997E+00 .519617E+00 6.083334
74 none .299997E+00 .519617E+00 6.083334 .1E-02 1
-.300002E+00 .519614E+00 6.166667
75 none -.300002E+00 .519614E+00 6.166667 .1E-02 1
-.6E+00 -.882188E-06 6.25
76 none -.6E+00 -.882188E-06 6.25 .1E-02 1
-.3E+00 -.519615E+00 6.333333
77 none -.3E+00 -.519615E+00 6.333333 .1E-02 1
.300003E+00 -.519614E+00 6.416667
78 none .300003E+00 -.519614E+00 6.416667 .1E-02 1
.6E+00 .16499E-05 6.5
79 none .6E+00 .16499E-05 6.5 .1E-02 1
.3E+00 .519615E+00 6.583333
80 none .3E+00 .519615E+00 6.583333 .1E-02 1
-.299999E+00 .519616E+00 6.666667
81 none -.299999E+00 .519616E+00 6.666667 .1E-02 1
-.6E+00 -.241761E-05 6.75
82 none -.6E+00 -.241761E-05 6.75 .1E-02 1
-.299999E+00 -.519616E+00 6.833333
83 none -.299999E+00 -.519616E+00 6.833333 .1E-02 1
.3E+00 -.519615E+00 6.916667
84 none .3E+00 -.519615E+00 6.916667 .1E-02 1
.6E+00 .318532E-05 7.
85 none .6E+00 .318532E-05 7. .1E-02 1
.299998E+00 .519616E+00 7.083333
86 none .299998E+00 .519616E+00 7.083333 .1E-02 1
-.300001E+00 .519615E+00 7.166667
87 none -.300001E+00 .519615E+00 7.166667 .1E-02 1
-.6E+00 .624611E-06 7.25
88 none -.6E+00 .624611E-06 7.25 .1E-02 1
-.299998E+00 -.519617E+00 7.333333
89 none -.299998E+00 -.519617E+00 7.333333 .1E-02 1
.300001E+00 -.519615E+00 7.416667
90 none .300001E+00 -.519615E+00 7.416667 .1E-02 1
.6E+00 .143099E-06 7.5
91 none .6E+00 .143099E-06 7.5 .1E-02 1
.299997E+00 .519617E+00 7.583334
92 none .299997E+00 .519617E+00 7.583334 .1E-02 1
-.300002E+00 .519614E+00 7.666667
93 none -.300002E+00 .519614E+00 7.666667 .1E-02 1
-.6E+00 -.910808E-06 7.75
94 none -.6E+00 -.910808E-06 7.75 .1E-02 1
-.3E+00 -.519615E+00 7.833333
95 none -.3E+00 -.519615E+00 7.833333 .1E-02 1
.300003E+00 -.519614E+00 7.916667
96 none .300003E+00 -.519614E+00 7.916667 .1E-02 1
.6E+00 .167852E-05 8.
97 none .6E+00 .167852E-05 8. .1E-02 1
.3E+00 .519615E+00 8.083333
98 none .3E+00 .519615E+00 8.083333 .1E-02 1
-.300003E+00 .519613E+00 8.166667
99 none -.300003E+00 .519613E+00 8.166667 .1E-02 1
-.6E+00 -.244623E-05 8.25
100 none -.6E+00 -.244623E-05 8.25 .1E-02 1
-.299999E+00 -.519616E+00 8.333333
101 none -.299999E+00 -.519616E+00 8.333333 .1E-02 1
.3E+00 -.519615E+00 8.416667
102 none .3E+00 -.519615E+00 8.416667 .1E-02 1
.6E+00 .321394E-05 8.5
103 none .6E+00 .321394E-05 8.5 .1E-02 1
.299998E+00 .519616E+00 8.583334
104 none .299998E+00 .519616E+00 8.583334 .1E-02 1
-.300001E+00 .519615E+00 8.666667
105 none -.300001E+00 .519615E+00 8.666667 .1E-02 1
-.6E+00 -.398165E-05 8.750001
106 none -.6E+00 -.398165E-05 8.750001 .1E-02 1
-.299998E+00 -.519617E+00 8.833334
107 none -.299998E+00 -.519617E+00 8.833334 .1E-02 1
.300001E+00 -.519615E+00 8.916667
108 none .300001E+00 -.519615E+00 8.916667 .1E-02 1
.6E+00 .171718E-06 9.
109 none .6E+00 .171718E-06 9. .1E-02 1
.299997E+00 .519617E+00 9.083334
110 none .299997E+00 .519617E+00 9.083334 .1E-02 1
-.300002E+00 .519614E+00 9.166667
111 none -.300002E+00 .519614E+00 9.166667 .1E-02 1
-.6E+00 -.939428E-06 9.25
112 none -.6E+00 -.939428E-06 9.25 .1E-02 1
-.299996E+00 -.519617E+00 9.333334
113 none -.299996E+00 -.519617E+00 9.333334 .1E-02 1
.300003E+00 -.519614E+00 9.416667
114 none .300003E+00 -.519614E+00 9.416667 .1E-02 1
.6E+00 .170714E-05 9.5
115 none .6E+00 .170714E-05 9.5 .1E-02 1
.3E+00 .519615E+00 9.583333
116 none .3E+00 .519615E+00 9.583333 .1E-02 1
-.300003E+00 .519613E+00 9.666667
117 none -.300003E+00 .519613E+00 9.666667 .1E-02 1
-.6E+00 -.247485E-05 9.75
118 none -.6E+00 -.247485E-05 9.75 .1E-02 1
-.299999E+00 -.519616E+00 9.833333
119 none -.299999E+00 -.519616E+00 9.833333 .1E-02 1
.3E+00 -.519615E+00 9.916667
120 none .3E+00 -.519615E+00 9.916667 .1E-02 1
.6E+00 .324256E-05 10.
121 none .6E+00 .324256E-05 10. .1E-02 1
.299998E+00 .519616E+00 10.08333
122 none .299998E+00 .519616E+00 10.08333 .1E-02 1
-.300001E+00 .519615E+00 10.16667
123 none -.300001E+00 .519615E+00 10.16667 .1E-02 1
-.6E+00 .567371E-06 10.25
124 none -.6E+00 .567371E-06 10.25 .1E-02 1
-.300002E+00 -.519614E+00 10.33333
125 none -.300002E+00 -.519614E+00 10.33333 .1E-02 1
.300005E+00 -.519612E+00 10.41667
126 none .300005E+00 -.519612E+00 10.41667 .1E-02 1
.6E+00 .477797E-05 10.5
127 none .6E+00 .477797E-05 10.5 .1E-02 1
.299997E+00 .519617E+00 10.58333
128 none .299997E+00 .519617E+00 10.58333 .1E-02 1
-.300002E+00 .519614E+00 10.66667
129 none -.300002E+00 .519614E+00 10.66667 .1E-02 1
-.6E+00 -.968047E-06 10.75
130 none -.6E+00 -.968047E-06 10.75 .1E-02 1
-.3E+00 -.519615E+00 10.83333
131 none -.3E+00 -.519615E+00 10.83333 .1E-02 1
.299999E+00 -.519616E+00 10.91667
132 none .299999E+00 -.519616E+00 10.91667 .1E-02 1
.6E+00 .631339E-05 11.
133 none .6E+00 .631339E-05 11. .1E-02 1
.299996E+00 .519618E+00 11.08333
134 none .299996E+00 .519618E+00 11.08333 .1E-02 1
-.300003E+00 .519613E+00 11.16667
135 none -.300003E+00 .519613E+00 11.16667 .1E-02 1
-.6E+00 -.250347E-05 11.25
136 none -.6E+00 -.250347E-05 11.25 .1E-02 1
-.299999E+00 -.519616E+00 11.33333
137 none -.299999E+00 -.519616E+00 11.33333 .1E-02 1
.3E+00 -.519615E+00 11.41667
138 none .3E+00 -.519615E+00 11.41667 .1E-02 1
.6E+00 -.130646E-05 11.5
139 none .6E+00 -.130646E-05 11.5 .1E-02 1
.299994E+00 .519619E+00 11.58333
140 none .299994E+00 .519619E+00 11.58333 .1E-02 1
-.300005E+00 .519613E+00 11.66667
141 none -.300005E+00 .519613E+00 11.66667 .1E-02 1
-.6E+00 -.403888E-05 11.75
142 none -.6E+00 -.403888E-05 11.75 .1E-02 1
-.299998E+00 -.519617E+00 11.83333
143 none -.299998E+00 -.519617E+00 11.83333 .1E-02 1
.300001E+00 -.519615E+00 11.91667
144 none .300001E+00 -.519615E+00 11.91667 .1E-02 1
.6E+00 .228958E-06 12.
145 none .6E+00 .228958E-06 12. .1E-02 1
.300001E+00 .519615E+00 12.08333
146 none .300001E+00 .519615E+00 12.08333 .1E-02 1
-.300006E+00 .519612E+00 12.16667
147 none -.300006E+00 .519612E+00 12.16667 .1E-02 1
-.6E+00 -.55743E-05 12.25
148 none -.6E+00 -.55743E-05 12.25 .1E-02 1
-.299996E+00 -.519617E+00 12.33333
149 none -.299996E+00 -.519617E+00 12.33333 .1E-02 1
.300003E+00 -.519614E+00 12.41667
150 none .300003E+00 -.519614E+00 12.41667 .1E-02 1
.6E+00 .176438E-05 12.5
151 none .6E+00 .176438E-05 12.5 .1E-02 1
.3E+00 .519616E+00 12.58333
152 none .3E+00 .519616E+00 12.58333 .1E-02 1
-.299999E+00 .519616E+00 12.66667
153 none -.299999E+00 .519616E+00 12.66667 .1E-02 1
-.6E+00 -.710972E-05 12.75
154 none -.6E+00 -.710972E-05 12.75 .1E-02 1
-.299995E+00 -.519618E+00 12.83333
155 none -.299995E+00 -.519618E+00 12.83333 .1E-02 1
.300004E+00 -.519613E+00 12.91667
156 none .300004E+00 -.519613E+00 12.91667 .1E-02 1
.6E+00 .32998E-05 13.
157 none .6E+00 .32998E-05 13. .1E-02 1
.299998E+00 .519616E+00 13.08333
158 none .299998E+00 .519616E+00 13.08333 .1E-02 1
-.300001E+00 .519615E+00 13.16667
159 none -.300001E+00 .519615E+00 13.16667 .1E-02 1
-.6E+00 .510132E-06 13.25
160 none -.6E+00 .510132E-06 13.25 .1E-02 1
-.300002E+00 -.519614E+00 13.33333
161 none -.300002E+00 -.519614E+00 13.33333 .1E-02 1
.300005E+00 -.519612E+00 13.41667
162 none .300005E+00 -.519612E+00 13.41667 .1E-02 1
.6E+00 .483521E-05 13.5
163 none .6E+00 .483521E-05 13.5 .1E-02 1
.299997E+00 .519617E+00 13.58333
164 none .299997E+00 .519617E+00 13.58333 .1E-02 1
-.300002E+00 .519614E+00 13.66667
165 none -.300002E+00 .519614E+00 13.66667 .1E-02 1
-.6E+00 -.102529E-05 13.75
166 none -.6E+00 -.102529E-05 13.75 .1E-02 1
-.3E+00 -.519615E+00 13.83333
167 none -.3E+00 -.519615E+00 13.83333 .1E-02 1
.299999E+00 -.519616E+00 13.91667
168 none .299999E+00 -.519616E+00 13.91667 .1E-02 1
.6E+00 .637063E-05 14.
169 none .6E+00 .637063E-05 14. .1E-02 1
.299996E+00 .519618E+00 14.08333
170 none .299996E+00 .519618E+00 14.08333 .1E-02 1
-.300003E+00 .519613E+00 14.16667
171 none -.300003E+00 .519613E+00 14.16667 .1E-02 1
-.6E+00 -.256071E-05 14.25
172 none -.6E+00 -.256071E-05 14.25 .1E-02 1
-.299999E+00 -.519616E+00 14.33333
173 none -.299999E+00 -.519616E+00 14.33333 .1E-02 1
.3E+00 -.519615E+00 14.41667
174 none .3E+00 -.519615E+00 14.41667 .1E-02 1
.6E+00 -.124922E-05 14.5
175 none .6E+00 -.124922E-05 14.5 .1E-02 1
.299994E+00 .519619E+00 14.58333
176 none .299994E+00 .519619E+00 14.58333 .1E-02 1
-.300005E+00 .519613E+00 14.66667
177 none -.300005E+00 .519613E+00 14.66667 .1E-02 1
-.6E+00 -.409612E-05 14.75
178 none -.6E+00 -.409612E-05 14.75 .1E-02 1
-.299998E+00 -.519617E+00 14.83333
179 none -.299998E+00 -.519617E+00 14.83333 .1E-02 1
.300001E+00 -.519614E+00 14.91667
180 none .300001E+00 -.519614E+00 14.91667 .1E-02 1
.6E+00 .286197E-06 15.
Received on Fri Jun 26 1998 - 13:45:01 EDT
This archive was generated by hypermail 2.2.0 : Sat Oct 02 2010 - 00:10:38 EDT