The RFI ISM 6dBi Collinear Antenna delivers high gain, optimised operation and long-term reliability through advanced construction methods and band-specific tuning.
Designed for Maximum Gain and Efficiency
The CDR2795-ISM900 is tuned specifically to the ISM 900MHz band, providing superior radiation pattern performance and signal efficiency. Unlike wideband antennas that must compromise across a broad frequency range, this narrowband design focuses energy precisely where it is needed, achieving 6dBi of usable gain.
This increased gain enhances system efficiency, improving signal strength and stability even under low-power conditions. In situations where every decibel counts, the CDR2795-ISM900 ensures maximum power transfer and consistent radiation patterns.
Advanced Meander® Flexible PCB Technology
Central to the antenna’s performance is RFI’s Meander® Flexible PCB construction, a precision-engineered solution that combines electrical consistency, mechanical strength and
long-term reliability.
Key advantages include:
- Optimised impedance control for reduced signal loss and higher efficiency
- Enhanced mechanical durability to withstand vibration and environmental stress
- Consistent manufacturing repeatability for dependable field performance
This technology ensures the antenna maintains high gain reliably over its lifespan, distinguishing it from low-quality alternatives.
With versatile mounting options — including spring or bulkhead configurations — the antenna delivers reliable electrical performance across a variety of deployment scenarios, including vehicle and bracket mounting.
Why ISM connectivity pairs well with high-gain antennas
Due to the low power constraints of ISM based protocols using frequency specific antennas can solve many problems when using the ISM 900 band. Even with protocols such as LoRa and LoRaWAN, where packets are small and resilient, there are benefits to having a high-gain antenna installed on gateways. Running high-gain, dedicated spectrum antennas will increase the distance over which a strong signal and low noise can be maintained. This is helpful for not only increasing the distance that can be transmitted over, reducing the number of needed gateways, but also has the advantage of reducing the power consumption on sensors. It will also reduce the overall consumption of the gateway, which is particularly important for applications running on solar and battery power. With a stronger SNR, this will also minimise the chances of packet loss when transmitting, reducing lost data and the need for re-attempts and increasing the reliability of the system. Even when looking more at mesh systems such as Zigbee or Wi-SUN, ensuring reliable communications between sensors and reducing the power consumption are desirable outcomes.
The RFI CDR2795-ISM900 6dBi Collinear Antenna makes an ideal option for these technologies, offering high gain, consistent radiation patterns, and reliable efficiency specifically within the ISM 900 MHz band. These factors combine to ensure consistent and reliable performance, whether you are using LoRa, Wi-SUN, or any other protocol.
Its advanced materials and construction ensure performance is maximised where it matters most, setting a benchmark for narrowband ISM antennas in modern wireless systems.
Superior connectivity when it matters most
When looking at the applications where external antennas are required, it becomes even more important to ensure that high quality signal can be sent and received over a long distance. While many indoor applications can rely on internal or small IoT antennas, applications such as telemetry, agriculture, and farming cover large outdoor areas. In applications like irrigation, smart agriculture, smart farming, water monitoring, and environmental sensing, it can be incredibly important that a message is received and acted on; therefore, substandard communications resulting in missed messages cannot be tolerated. In these cases, a high-gain, dedicated ISM band antenna like the CDR2795-ISM900 provides significant benefits over low-gain multiband options and can be the difference between a successful solution and failure. With spring mounting options, the CDR2795-ISM900 is also the perfect option for fleet and mobility applications with high gain, high pattern performance and easy, durable mounting.
The CDR2795-ISM900 is the high-performance choice for IoT gateways and standalone base devices where isolation or distance requires best-in-class antenna optimisation.
Ready to see the difference a purpose-built, high-quality antenna can make?