HA.21.A Datasheet, PDF (24/25 Pages) List of Unclassifed Manufacturers – Embedded Helical Monopole Antenna

7.6 Antenna Performance Table
ELECTRICAL
Application Bands
ISM 868MHz
Mounting Direction
HAD.A.21
HAD.B.21
Frequency (MHz)
850
868
880
850
868
880
Efficiency
Ground plane length 160mm
47.48 52.89 48.66 69.27 65.15 59.04
Ground plane length 150mm
50.33 59.00 54.64 67.34 66.93 63.18
Ground plane length 140mm
50.73 60.42 55.73 63.08 64.60 62.80
Ground plane length 130mm
55.38 59.44 49.44 59.41 63.21 61.23
Ground plane length 120mm
50.02 59.18 54.98 55.94 60.70 59.82
Ground plane length 110mm
42.92 49.87 45.21 54.65 60.55 61.17
Ground plane length 100mm
34.92 45.20 44.64 42.34 57.28 56.70
Ground plane length 90mm
32.98 44.25 42.92 36.15 52.23 53.23
Ground plane length 80mm
26.56 38.42 41.24
X
X
X
Ground plane length 70mm
23.03 35.84 39.12
X
X
X
Ground plane length 60mm
23.07 35.06 36.05
X
X
X
Ground plane length 50mm
23.46 33.66 33.44
X
X
X
Average Gain(dBi)
Ground plane length 160mm
-3.23 -2.77 -3.12 -1.59 -1.86 -2.28
Ground plane length 150mm
-2.98 -2.29 -2.62 -1.71 -1.74 -1.99
Ground plane length 140mm
-2.94 -2.19 -2.53 -2.00 -1.90 -2.01
Ground plane length 130mm
-2.56 -2.26 -3.05 -2.26 -1.99 -2.13
Ground plane length 120mm
-3.00 -2.28 -2.59 -2.52 -2.17 -2.23
Ground plane length 110mm
-3.67 -3.02 -3.44 -2.62 -2.18 -2.13
Ground plane length 100mm
-4.56 -3.45 -3.50 -3.73 -2.42 -2.46
Ground plane length 90mm
-4.81 -3.54 -3.67 -4.41 -2.81 -2.73
Ground plane length 80mm
-5.75 -4.15 -3.84
X
X
X
Ground plane length 70mm
-6.37 -4.46 -4.07
X
X
X
Ground plane length 60mm
-6.36 -4.55 -4.43
X
X
X
Ground plane length 50mm
-6.29 -4.73 -4.75
X
X
X
DSP-15-8-SPE-16-8-016/B/WY Page 24 of 25