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stats-balcony.txt
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Statistics with balcony as reflector
Binary: ./folded_bigrefl.py
Force optimization of gain in horizontal plane, use smaller popsize
--force-horizontal --popsize 30
R Gain f/b SWR SWR Eval Generations Evaluations
01 10.09 12.33 1.07 1.01 1113.44 851 25560
02 10.17 11.77 1.63 1.46 944.48 164 4950
03 9.63 11.48 1.22 1.27 918.10 450 13530
04 10.01 12.78 1.00 1.07 1092.87 1001 30060
05 9.89 13.36 1.24 1.04 1032.14 688 20670
06 9.74 11.38 1.41 1.26 898.89 189 5700
07 10.24 12.58 1.09 1.14 1125.34 788 23670
08 10.19 9.65 1.40 1.28 1005.40 632 18990
09 9.31 10.85 1.36 1.23 826.38 435 13080
10 9.45 11.28 1.38 1.26 858.07 573 17220
11 9.74 12.38 1.27 1.17 946.11 502 15090
12 10.58 11.07 1.29 1.15 1172.97 990 29730
13 10.36 10.56 1.58 1.39 1009.05 662 19890
14 9.49 10.64 1.42 1.32 846.96 430 12930
15 9.27 9.37 1.35 1.33 808.80 157 4740
16 10.07 7.73 1.58 1.45 909.39 222 6690
17 9.19 10.52 1.29 1.21 813.15 176 5310
18 10.08 12.46 1.08 1.03 1103.92 468 14070
19 10.85 8.92 1.51 1.34 1143.61 713 21420
20 9.64 12.16 1.49 1.29 875.45 337 10140
21 10.24 12.25 1.08 1.10 1132.99 564 16950
22 9.38 10.11 1.31 1.39 831.02 233 7020
23 9.63 11.16 1.39 1.23 904.65 925 27780
24 10.16 12.57 1.05 1.04 1134.19 1001 30060
25 10.20 12.22 1.18 1.03 1117.50 1001 30060
26 9.70 11.86 1.31 1.18 940.28 609 18300
27 9.82 10.62 1.26 1.17 946.31 467 14040
28 9.56 12.78 1.16 1.07 939.61 196 5910
29 9.63 12.16 1.29 1.21 927.06 311 9360
30 10.58 8.38 1.34 1.30 1060.51 501 15060
31 9.83 12.56 1.29 1.31 942.07 445 13380
32 9.40 10.93 1.43 1.43 825.39 551 16560
33 10.75 10.41 1.31 1.18 1197.24 1001 30060
41 9.21 9.60 1.38 1.45 774.56 143 4320
42 9.35 9.84 1.34 1.38 822.41 248 7470
R: 18.40 10.86
Gain: 9.87 0.44
f/b: 11.16 1.34
SWR: 1.31 0.15
SWR: 1.23 0.13
Eval: 969.72 121.98
Generations: 532.11 277.04
Evaluations: 15993.43 8311.23
Also force horizontal plane bug use larger minimum reflector distance
Relax the SWR requirement: Don't optimize SWR further after it has
reached the maximum SWR (of 1.8).
--force-horizontal --popsize 30 --large-refldist --relax-swr
R Gain f/b SWR SWR Eval Generations Evaluations
01 9.56 10.95 1.63 1.77 980.19 593 17820
02 9.85 12.03 1.76 1.73 1064.36 1001 30060
03 9.77 11.74 1.55 1.78 1041.83 919 27600
04 9.36 10.60 1.20 1.76 925.76 722 21690
05 9.51 11.17 1.26 1.80 966.26 675 20280
06 9.53 11.09 1.40 1.77 972.74 730 21930
07 9.58 8.44 1.65 1.65 975.92 580 17430
08 9.72 12.38 1.74 1.80 1029.50 502 15090
09 9.34 10.10 1.16 1.56 918.06 340 10230
10 9.66 12.26 1.65 1.80 1012.86 496 14910
11 10.00 12.74 1.80 1.77 1110.14 814 24450
12 9.34 10.36 1.11 1.57 920.02 424 12750
13 9.86 12.21 1.74 1.71 1066.79 1001 30060
14 9.76 11.83 1.55 1.76 1036.76 873 26220
15 9.69 11.27 1.53 1.76 1014.94 585 17580
16 9.54 11.16 1.33 1.80 973.45 684 20550
17 9.35 10.37 1.06 1.62 922.30 367 11040
18 9.95 11.98 1.73 1.80 1093.21 845 25380
19 9.57 11.51 1.53 1.51 983.56 395 11880
20 9.79 12.79 1.79 1.78 1049.81 729 21900
21 9.24 9.37 1.79 1.71 888.61 464 13950
22 9.71 12.02 1.58 1.69 1023.52 1001 30060
23 9.34 10.02 1.19 1.55 916.24 325 9780
24 9.42 8.08 1.78 1.74 931.66 412 12390
25 9.36 10.40 1.25 1.62 923.54 413 12420
26 9.33 9.74 1.43 1.22 913.09 339 10200
27 9.35 10.30 1.02 1.67 920.97 529 15900
28 9.37 10.54 1.29 1.78 926.19 429 12900
29 9.56 8.23 1.76 1.53 969.39 486 14610
30 9.36 10.54 1.18 1.75 925.56 571 17160
31 9.33 10.08 1.18 1.54 915.58 365 10980
R: 16.00 8.94
Gain: 9.55 0.21
f/b: 10.85 1.23
SWR: 1.47 0.25
SWR: 1.69 0.13
Eval: 977.83 60.34
Generations: 600.29 210.80
Evaluations: 18038.71 6323.92
Statistics on more frequencies
==============================
Balcony reflector, first round of runs (without large refldist)
R Gain432 f/b432 Gain438 f/b438 minGain min_f/b refl_dist(mm)
01 10.1 12.9 10.1 14.1 10.04 12.3 8.3
04 10.0 13.4 10.0 13.8 10.0 12.9 8.3
07 10.4 12.7 10.2 13.5 10.2 11.2 8.0
12 8.7 14.6 10.4 12.6 8.6 11.4 8
18 10.1 13.0 10.1 14.1 10.08 12.4 8.2
21 10.4 12.3 10.2 13.0 10.2 10.6 8
24 10.2 13.0 10.2 13.3 10.2 12.2 8
25 10.2 12.6 10.2 14.0 9.9 12.1 8
29 9.6 14.15 9.7 13.8 9.63 12.4 11.1
Second round of runs (with minimum refl dist)
R Gain432 f/b432 Gain438 f/b438 minGain min_f/b refl_dist(mm)
01 9.5 11.1 9.7 10.8 9.4 10.6 20.0
02 9.7 12.3 10.0 11.8 9.6 11.6 47.4
03 9.6 12.0 9.9 11.5 9.6 11.3 38.6
08 9.6 12.6 9.9 12.1 9.5 11.9 53.3
10 9.5 12.5 9.8 12.0 9.5 11.9 47.3
11 9.8 13.0 10.2 12.6 9.7 12.4 52.1 <--
13 9.7 12.4 10.0 12.0 9.6 11.9 45.1
14 9.6 12.1 9.9 11.5 9.5 11.3 39.6
15 9.6 11.5 9.8 10.9 9.5 10.7 32.2
18 9.8 12.4 10.1 11.8 9.7 11.6 45.4
20 9.6 13.0 9.9 12.6 9.6 12.4 51.6
22 9.6 12.2 9.8 11.8 9.5 11.6 39.9
Slight variations of R 24 above
Desc Gain432 f/b432 Gain438 f/b438 minGain min_f/b refl_dist(mm)
dia 0.85/0.9 9.3 20 9.8 16 8.6 12.5 8
dia 0.85/0.9 9.3 22.5 9.7 17 8.8 15 12.25
dia 0.85/0.9 9.1 22.2 9.4 17.5 8.4 15.6 16.5 (SWR 2.2)
Slight variation of R 11 of second run
Desc Gain432 f/b432 Gain438 f/b438 minGain min_f/b refl_dist
(original) 9.8 13.0 10.2 12.6 9.7 12.4 0.0521
-d -5mm 9.7 12.5 10.1 12.1 9.6 11.9 0.0471
-d +5mm 9.9 13.5 10.3 13.1 9.8 13.0 0.0571
dia 9.8 15.2 10.2 15.0 9.7 15.0 0.0521
-d -5mm dia 9.8 14.6 10.1 14.4 9.7 14.4 0.0471
-d +5mm dia 9.9 15.7 10.3 15.7 9.8 15.6 0.0571
-d -5mm: Smaller reflector distance by 5mm
-d +5mm: Larger reflector distance by 5mm
dia: Larger diameter (by 2mm) of vertical elements (both types of them)
With larger diameter of vertical elements, resonance is higher (larger
SWR at lower band edge but only 1.9)
With smaller reflector distance, resonance is higher (larger SWR at lower
band edge). With larger reflector distance, resonance is lower (larger
SWR at upper band edge)
Effect is more pronounced when both, smaller reflector distance and
larger diameter of vertical elements. It almost cancels for larger
reflector distance and larger diameter of vertical elements.
So we can adjust the antenna by modifying just the reflector distance.