ANT-916-HESM
Overview
The ANT-916-HESM is a compact, helical surface-mount antenna designed for the 916 MHz ISM band. It offers an omnidirectional radiation pattern and a gain of 2.4 dBi, making it suitable for low-power, wide-area networking in a small footprint. Its surface-mount design allows for automated reflow assembly directly onto a PCB, simplifying the manufacturing process for high-volume IoT devices.
Why Choose This Part
This antenna features a helical design that provides a smaller physical profile than standard monopoles while maintaining a 2.4 dBi gain. Its surface-mount package supports high-speed automated assembly and reduces labor costs compared to hand-soldered alternatives. The 100 MHz bandwidth (865 MHz to 965 MHz) ensures performance across the entire 915 MHz ISM band despite environmental detuning.
Applications
Key Specifications
Getting Started
When designing with the ANT-916-HESM, ensure a proper ground plane is provided as the antenna performance is dependent on the PCB layout. Follow the manufacturer's recommended land pattern and keep the area directly under the helical element free of copper to prevent interference. Typical integration involves a 50-ohm microstrip feedline and a matching network to optimize VSWR for the specific enclosure.
ANT-916 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Gain | VSWR | Termination | Antenna Type | Height (Max) | Frequency Range | Stock |
|---|---|---|---|---|---|---|---|
| ANT-916-HESM (this part) | 2.4dBi | 2 | Solder | Helical | 0.350" (8.90mm) | 865M | 5,535 |
| ANT-916-PML | -0.4dBi | 1.9 | U.FL (UMCC), I-PEX.. | Whip, Tilt | 5.917" (150.30mm) | 881M | — |




