HA.21.A Datasheet, PDF (4/25 Pages) List of Unclassifed Manufacturers – Embedded Helical Monopole Antenna

2. Specification
Application Bands
Mounting Direction
Frequency (MHz)
Return Loss (dB)
Peak Gain (dBi)
Average Gain (dBi)
Efficiency (%)
Polarization
Impedance
Helical Coil Dimension
Weight (g)
Operation Temperature
Humidity
ELECTRICAL
ISM 868MHz
HAD.A.21
HAD.B.21
850
868
880
850
868
880
<-10
0.76 0.77 0.27 1.79 1.83 1.64
-2.82 -2.87 -3.35 -1.42 -1.49 -1.74
52.21 51.52 46.22 72.10 70.95 66.92
Linear
50 ohms
MECHANICAL
L: 11mm, Ø10.25mm
0.7
ENVIRONMENTAL
-40°C to 85°C
Non-condensing 65°C 95% RH
DSP-15-8-SPE-16-8-016/B/WY Page 4 of 25