The Joymax GSD-S026SMDG antenna is an embedded, surface-mount, helical monopole antennas designed for use in sub-1 GHz 868 & 915 MHz frequency bands supporting low-power, wide-area (LPWA) applications including LoRaWAN®, Sigfox®, Wi-SUN®, Weightless-PTM, Wi-Fi HaLowTM and other unlicensed ISM application in the 868 and 915 MHz frequency range.
The board-attached antenna provides omnidirectional radiation which perfectly matches a portable device, and features compact package and low profile to be directly mounted on the main board of the end-products. Connection is made to the radio through microstrip transmission lines.
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Electrical Data (82 x 39 mm reference ground plane) |
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Frequency (MHz) |
VSWR (Max) |
Peak Gain (dBi) |
Efficiency (%) |
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868 |
2.0 | 1.3 | 57 |
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915 |
2.1 | 1.7 | 55 |
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Polarization |
Linear |
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Radiation Pattern |
Omni directional |
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Max. Power |
1 W |
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Wavelength |
¼-wave |
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Electrical Type |
Monopole |
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Impedance (Ohms) |
50 Ω |
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Mechanical Data |
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Mounting Type |
Surface Mount |
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Termination |
Solder Pad |
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Dimension |
26 mm x 9.3 mm x 6.8 mm |
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Op. Temp |
-40˚C to +85˚C |
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Reference Ground Plane |
82 mm x 39 mm |
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Antenna Color |
Bronze |