DH1RK
SteppIR Simulation - Result Overview
SteppIR Simulation - Result Overview
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Table: Antenna Comparision Overview (Gain, Front/Back)
This page shows the EZNEC simulation results of a 3 Element SteppIR with the optional 6m passive element. Simulation done with fiberglas insulation. Ground type was standard Mininec. Also, I added the values from the Optibeam OB9-5 (as a comparison to the 3 Element SteppIR) beam. In the second part I compared the different SteppIR modes (Standard mode, reversed mode and bi-directional mode).
BAND Antenna Gain[dBd] Gain[dBi] ΔGain sim. F/B [dB] Δ F/B @20dB @20m o. Gr. [dbD] SteppIR [20m] 5,24 7,4 -0,13 25 5 n.a. SteppIR sim. [20m] 5,37 7,53 0 21,18 1,18 10,57 Optibeam [20m] 4,3 6,46 -1,84 20 0 9,54 SteppIR [17m] 6,14 8,3 0,69 25 5 n.a. SteppIR sim. [17m] 5,45 7,61 0 37,65 17,65 10,87 Optibeam [17m] 4,5 6,66 -1,84 20 0 9,84 SteppIR [15m] 6,34 8,5 0,37 20 0 n.a. SteppIR sim. [15m] 5,97 8,13 0 22,59 2,59 11,48 Optibeam [15m] 4,7 6,86 -1,94 20 0 10,14 SteppIR [12m] 6,64 8,8 0,43 15 -5 n.a. SteppIR sim. [12m] 6,21 8,37 0 16,99 -3,01 11,75 Optibeam [12m] 4,5 6,66 -2,34 20 0 10,14 SteppIR [10m] 6,84 9 0,28 11 -9 n.a. SteppIR sim. [10m] 6,56 8,72 0 10,62 -9,38 12,19 Optibeam [10m] 4,5 6,66 -3,44 20 0 10,14 SteppIR [6m] 7,94 10,1 -0,11 30 10 n.a. SteppIR sim. [6m] 8,05 10,21 0 14,72 -5,28 13,81 Optibeam [6m] n.a. n.a. n.a. n.a. n.a. n.a. 20m 17m 15m 12m 10m 6m 5,24 5,37 4,3 6,14 5,45 4,5 6,34 5,97 4,7 6,64 6,21 4,5 6,84 6,56 4,5 7,94 8,05 0 0 1 2 3 4 5 6 7 8 9 Comparison Antenna  Gain [dBD] 25 21,18 20 25 37,65 20 20 22,59 20 15 16,99 20 11 10,62 20 30 14,72 0 0 5 10 15 20 25 30 35 40 Comparison Antenna  F/B [db] BAND Antenna Gain[dBd] Gain[dBi] F/B [dB] Δ F/B @20dB @20m o. Gr. [dbD] Standard [20m] 5,37 7,53 21,18 1,18 10,57 Reversed [20m] 5,44 7,6 22,45 2,45 n.a. Bidirectional [20m] 2,19 4,35 2,63 -17,37 n.a. Standard [17m] 5,45 7,61 37,65 17,65 10,87 Reversed [17m] 5,73 7,89 32,48 12,48 n.a. Bidirectional [17m] 1,15 3,31 1,01 -18,99 n.a. Standard [15m] 5,97 8,13 22,59 2,59 11,48 Reversed [15m] 5,85 8,01 21,5 1,5 n.a. Bidirectional [15m] 2,72 4,88 2,24 -17,76 n.a. Standard [12m] 6,21 8,37 16,99 -3,01 11,75 Reversed [12m] 6,2 8,36 16,54 -3,46 n.a. Bidirectional [12m] 3,35 5,51 1,82 -18,18 n.a. Standard [10m] 6,56 8,72 10,62 -9,38 12,19 Reversed [10m] 6,76 8,92 11,46 -8,54 n.a. Bidirectional [10m] 4,23 6,39 1,7 -18,3 n.a. Standard [6m] 8,05 10,21 14,72 -5,28 13,81 Reversed [6m] n.a. n.a. n.a. n.a. n.a. Bidirectional [6m] 6,85 9,01 6,37 -13,63 n.a. 20m 17m 15m 12m 10m 6m 5,37 5,44 2,19 5,45 5,73 1,15 5,97 5,85 2,72 6,21 6,2 3,35 6,56 6,76 4,23 8,05 0 6,85 0 1 2 3 4 5 6 7 8 9 3El. SteppIR +6m passive Element Gain [dbD]  - simulated 0 5 10 15 20 25 30 35 40 3El. SteppIR +6m passive Element F/B [db]  - simulated
Grafic: Antenna Comparision Overview (Gain, Front/Back)
Table: 3El. SteppIR Antenna Mode Comparision (Gain, Front/Back)
Grafic: 3El. SteppIR Antenna Mode Comparision (Gain, Front/Back)