mi2 loop.nec

zip contains tool for Antenna Modelling with examples

CM MI2 Fractal Loop Antenna, converted with 4nec2 on 30-Mar-06 20:18
CM This MI2 Fractal Loop antenna file was created by Dr.
CM Steven Best, VE9SRB 
CM The MI2 Fractal Loop antenna itself was designed by Dr.
CM Nathan Cohen, N1IR.   Results of Dr. Cohen's work on the
CM MI2 Loop were presented in several Communications Quarterly
CM articles.  The most notable article was entitled: "Fractal
CM Loops and the Small Loop Approximation", Winter 1996.
CM According to Dr. Cohen's results, the MI2 Fractal Loop has
CM a resistance of 26 ohms at the first resonance.  The gain
CM of the antenna at resonance is 2 dBi.  
CM The results determined from EZNEC with this MI2 model are
CM consistent with Dr. Cohen's work.
CM The first resonance occurs between 15.15 and 15.16 MHz with
CM a resistance of 28 ohms.  The antenna gain is 1.83 dBi. 
CM The 2:1 SWR bandwidth wrt 50 ohms is approximately 1.05%.
CM Note that the wire radius in this model is 3.2 mm.  This is
CM important for comparing antennas as wire radius will impact
CM resonant frequency.
CM The MI2 Loop antenna as described in this model has a total
CM wire length of 27.564 m and an aperture size of 2.8 m (X)
CM by 2.662 m (Y).
CE
GW 1 5 0.152521 0.263445 0 0.152521 0.471427 0 1.6e-3
GW 2 5 0.152521 0.471427 0 0.429831 0.471427 0 1.6e-3
GW 3 5 0.429831 0.471427 0 0.429831 0.762603 0 1.6e-3
GW 4 5 0.429831 0.762603 0 0.67941 0.762603 0 1.6e-3
GW 5 5 0.67941 0.762603 0 0.67941 1.039913 0 1.6e-3
GW 6 5 0.67941 1.039913 0 0.429831 1.039913 0 1.6e-3
GW 7 5 0.429831 1.039913 0 0.429831 1.331088 0 1.6e-3
GW 8 5 0.429831 1.331088 0 0.748737 1.331088 0 1.6e-3
GW 9 5 0.748737 1.331088 0 0.748737 1.095375 0 1.6e-3
GW 10 5 0.748737 1.095375 0 1.039913 1.095375 0 1.6e-3
GW 11 5 1.039913 1.095375 0 1.039913 1.331088 0 1.6e-3
GW 12 5 1.039913 1.331088 0 1.400416 1.331088 0 1.6e-3
GW 13 5 1.400416 1.331088 0 1.400416 1.039913 0 1.6e-3
GW 14 5 1.400416 1.039913 0 1.123106 1.039913 0 1.6e-3
GW 15 5 1.123106 1.039913 0 1.123106 0.762603 0 1.6e-3
GW 16 5 1.123106 0.762603 0 1.400416 0.762603 0 1.6e-3
GW 17 5 1.400416 0.762603 0 1.400416 0.429831 0 1.6e-3
GW 18 5 1.400416 0.429831 0 1.053778 0.429831 0 1.6e-3
GW 19 5 1.053778 0.429831 0 1.053778 0.651679 0 1.6e-3
GW 20 5 1.053778 0.651679 0 0.734872 0.651679 0 1.6e-3
GW 21 5 0.734872 0.651679 0 0.734872 0.429831 0 1.6e-3
GW 22 5 0.734872 0.429831 0 0.513024 0.429831 0 1.6e-3
GW 23 5 0.513024 0.429831 0 0.513024 0.110924 0 1.6e-3
GW 24 5 0.513024 0.110924 0 0.27731 0.110924 0 1.6e-3
GW 25 5 0.27731 0.110924 0 0.27731 -0.110924 0 1.6e-3
GW 26 5 0.27731 -0.110924 0 0.513024 -0.110924 0 1.6e-3
GW 27 5 0.513024 -0.110924 0 0.513024 -0.429831 0 1.6e-3
GW 28 5 0.513024 -0.429831 0 0.734872 -0.429831 0 1.6e-3
GW 29 5 0.734872 -0.429831 0 0.734872 -0.651679 0 1.6e-3
GW 30 5 0.734872 -0.651679 0 1.053778 -0.651679 0 1.6e-3
GW 31 5 1.053778 -0.651679 0 1.053778 -0.429831 0 1.6e-3
GW 32 5 1.053778 -0.429831 0 1.400416 -0.429831 0 1.6e-3
GW 33 5 1.400416 -0.429831 0 1.400416 -0.762603 0 1.6e-3
GW 34 5 1.400416 -0.762603 0 1.123106 -0.762603 0 1.6e-3
GW 35 5 1.123106 -0.762603 0 1.123106 -1.039913 0 1.6e-3
GW 36 5 1.123106 -1.039913 0 1.400416 -1.039913 0 1.6e-3
GW 37 5 1.400416 -1.039913 0 1.400416 -1.331088 0 1.6e-3
GW 38 5 1.400416 -1.331088 0 1.039913 -1.331088 0 1.6e-3
GW 39 5 1.039913 -1.331088 0 1.039913 -1.095375 0 1.6e-3
GW 40 5 1.039913 -1.095375 0 0.748737 -1.095375 0 1.6e-3
GW 41 5 0.748737 -1.095375 0 0.748737 -1.331088 0 1.6e-3
GW 42 5 0.748737 -1.331088 0 0.429831 -1.331088 0 1.6e-3
GW 43 5 0.429831 -1.331088 0 0.429831 -1.039913 0 1.6e-3
GW 44 5 0.429831 -1.039913 0 0.67941 -1.039913 0 1.6e-3
GW 45 5 0.67941 -1.039913 0 0.67941 -0.762603 0 1.6e-3
GW 46 5 0.67941 -0.762603 0 0.429831 -0.762603 0 1.6e-3
GW 47 5 0.429831 -0.762603 0 0.429831 -0.471427 0 1.6e-3
GW 48 5 0.429831 -0.471427 0 0.152521 -0.471427 0 1.6e-3
GW 49 5 0.152521 -0.471427 0 0.152521 -0.263445 0 1.6e-3
GW 50 5 0.152521 -0.263445 0 -0.152521 -0.263445 0 1.6e-3
GW 51 5 -0.152521 -0.263445 0 -0.152521 -0.471427 0 1.6e-3
GW 52 5 -0.152521 -0.471427 0 -0.429831 -0.471427 0 1.6e-3
GW 53 5 -0.429831 -0.471427 0 -0.429831 -0.762603 0 1.6e-3
GW 54 5 -0.429831 -0.762603 0 -0.67941 -0.762603 0 1.6e-3
GW 55 5 -0.67941 -0.762603 0 -0.67941 -1.039913 0 1.6e-3
GW 56 5 -0.67941 -1.039913 0 -0.429831 -1.039913 0 1.6e-3
GW 57 5 -0.429831 -1.039913 0 -0.429831 -1.331088 0 1.6e-3
GW 58 5 -0.429831 -1.331088 0 -0.748737 -1.331088 0 1.6e-3
GW 59 5 -0.748737 -1.331088 0 -0.748737 -1.095375 0 1.6e-3
GW 60 5 -0.748737 -1.095375 0 -1.039913 -1.095375 0 1.6e-3
GW 61 5 -1.039913 -1.095375 0 -1.039913 -1.331088 0 1.6e-3
GW 62 5 -1.039913 -1.331088 0 -1.400416 -1.331088 0 1.6e-3
GW 63 5 -1.400416 -1.331088 0 -1.400416 -1.039913 0 1.6e-3
GW 64 5 -1.400416 -1.039913 0 -1.123106 -1.039913 0 1.6e-3
GW 65 5 -1.123106 -1.039913 0 -1.123106 -0.762603 0 1.6e-3
GW 66 5 -1.123106 -0.762603 0 -1.400416 -0.762603 0 1.6e-3
GW 67 5 -1.400416 -0.762603 0 -1.400416 -0.429831 0 1.6e-3
GW 68 5 -1.400416 -0.429831 0 -1.053778 -0.429831 0 1.6e-3
GW 69 5 -1.053778 -0.429831 0 -1.053778 -0.651679 0 1.6e-3
GW 70 5 -1.053778 -0.651679 0 -0.734872 -0.651679 0 1.6e-3
GW 71 5 -0.734872 -0.651679 0 -0.734872 -0.429831 0 1.6e-3
GW 72 5 -0.734872 -0.429831 0 -0.513024 -0.429831 0 1.6e-3
GW 73 5 -0.513024 -0.429831 0 -0.513024 -0.110924 0 1.6e-3
GW 74 5 -0.513024 -0.110924 0 -0.27731 -0.110924 0 1.6e-3
GW 75 5 -0.27731 -0.110924 0 -0.27731 0.110924 0 1.6e-3
GW 76 5 -0.27731 0.110924 0 -0.513024 0.110924 0 1.6e-3
GW 77 5 -0.513024 0.110924 0 -0.513024 0.429831 0 1.6e-3
GW 78 5 -0.513024 0.429831 0 -0.734872 0.429831 0 1.6e-3
GW 79 5 -0.734872 0.429831 0 -0.734872 0.651679 0 1.6e-3
GW 80 5 -0.734872 0.651679 0 -1.053778 0.651679 0 1.6e-3
GW 81 5 -1.053778 0.651679 0 -1.053778 0.429831 0 1.6e-3
GW 82 5 -1.053778 0.429831 0 -1.400416 0.429831 0 1.6e-3
GW 83 5 -1.400416 0.429831 0 -1.400416 0.762603 0 1.6e-3
GW 84 5 -1.400416 0.762603 0 -1.123106 0.762603 0 1.6e-3
GW 85 5 -1.123106 0.762603 0 -1.123106 1.039913 0 1.6e-3
GW 86 5 -1.123106 1.039913 0 -1.400416 1.039913 0 1.6e-3
GW 87 5 -1.400416 1.039913 0 -1.400416 1.331088 0 1.6e-3
GW 88 5 -1.400416 1.331088 0 -1.039913 1.331088 0 1.6e-3
GW 89 5 -1.039913 1.331088 0 -1.039913 1.095375 0 1.6e-3
GW 90 5 -1.039913 1.095375 0 -0.748737 1.095375 0 1.6e-3
GW 91 5 -0.748737 1.095375 0 -0.748737 1.331088 0 1.6e-3
GW 92 5 -0.748737 1.331088 0 -0.429831 1.331088 0 1.6e-3
GW 93 5 -0.429831 1.331088 0 -0.429831 1.039913 0 1.6e-3
GW 94 5 -0.429831 1.039913 0 -0.67941 1.039913 0 1.6e-3
GW 95 5 -0.67941 1.039913 0 -0.67941 0.762603 0 1.6e-3
GW 96 5 -0.67941 0.762603 0 -0.429831 0.762603 0 1.6e-3
GW 97 5 -0.429831 0.762603 0 -0.429831 0.471427 0 1.6e-3
GW 98 5 -0.429831 0.471427 0 -0.152521 0.471427 0 1.6e-3
GW 99 5 -0.152521 0.471427 0 -0.152521 0.263445 0 1.6e-3
GW 100 5 -0.152521 0.263445 0 0.152521 0.263445 0 1.6e-3
GE 0
EK
LD 5 0 0 0 57471265.5 0
EX 6 100 3 0 1 0
GN -1
FR 0 1 0 0 15.15 0
EN