The HA.31.A is an ISM 915MHz quarter wave-length monopole antenna. This helical coil antenna is perfect for your smart meter, smart security system, remote asset monitoring, and other wireless communication devices. The helical coil antenna has a 2dBi Peak gain and a 68% efficiency at 915MHz on a 126.8 x 80.1mm ground plane with matching components (orthogonally mounted to ground plane, see HAD.B.31 performance). Made of copper alloy, the helical coil is mechanically sturdy, with a wide-bandwidth. It can be easily mounted on the surface of your device main board by soldering. The antenna must be connected to a ground-plane to radiate efficiently.
HA.31 915MHz 2dBi Helical Monopole Antenna
HA.31.A915MHz Helical Monopole Antenna
Quarter wave-length monopole
Mechanically Sturdy in a compact size
2dBi Peak Gain, 68% efficiency
Dims HA.31.A: L=11mm Ø10mm
Dims HAD.A.31 EVB: 81*160*12mm
Dims HAD.B.31 EVB: 159*80*12mm
HA.31.A
HA.31 915MHz 2dBi Helical Monopole Antenna
Overview
Technical Specification
| Name | Value |
|---|---|
| RoHS | Yes |
| Antenna Type | ISM/LoRA |
| Mechanical Style | Coil |
| Gain | 1.89 |
| Impedance | 50 |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | 85°C |
| Mounting Style | SMD/SMT |
| Termination Style | SMD/SMT |
| Antenna Connector Type | SMD |
| Cable Type | None |
| Connector Body Style | Straight |
| Polarity | Linear |
| Frequency Range | 915MHz |
| Connector Polarity | None |
| Packaging | PE Bag, Carton |
| VSWR | 2:1 |
| Length (mm) | 10.2 |
| Width (mm) | 10.2 |
| Height (mm) | 10.7 |
| Weight (g) | 0.7 |
