915 MHz frequency Antenna for Wi-Fi HaLow (802.11ah), LoRa, Sigfox applications. This is omnidirectional outdoor antenna. It is certified heavy duty, rugged, weather proof, and extremely durable for outside use. It offers 5 dBi Gain. It is for direct connection using its type N connector at 50 Ohm impedance. Thus, it is designed to be connected to a device or pigtail cable with N-female connector on its end.

Features:

• 5 dBi gain at 915 MHz band for Lo-Ra and Ha-Low long distance low data transfer industrial applications. This is not 2.4 GHz nor 5 GHz WiFi antenna.
• LoRa or HaLow omni-directional outdoor antenna receives and transmit the signal of your wireless devices at 902-928 MHz.
• Very low profile 7 inches tall length or height.

Note: This is NOT a Wi-Fi antenna nor 3G, 4G, LTE, 5G cellular antenna. It is made specifically for 915 Mhz sub 1 Ghz HaLow or LoRa application, or other applications in that frequency band.

Specifications:

VSWR:

902 - 915 MHz Radiation Pattern:

928 MHz Radiation Pattern:

HaLow LoRa Sigfox Antenna Mechanical Drawing:

What is HaLow?

Wi-Fi HaLow is the designation for products incorporating IEEE 802.11ah technology. It augments Wi-Fi by operating in spectrum below one gigahertz (GHz) to offer longer range and lower power connectivity. Wi-Fi HaLow meets unique requirements for Internet of Things (IoT) to enable a variety of use cases in industrial, agricultural, smart building, and smart city environments.

Wi-Fi HaLow enables the low power connectivity necessary for applications including sensor networks and wearables. Its range is longer than many other IoT technology options. It provides a more robust connection in challenging environments whereby ability to penetrate walls or other barriers is an important consideration.

LoRa/ HaLow/ Sigfox Frequency: 915 MHz.

To achieve IoT communications which should ideally be long range and low-power, new energy efficient communication technologies are emerging that target devices with low energy requirements. Examples of such communication technology solutions include LoRa, HaLow and Sigfox. These solutions are cheaper compared to conventional cellular network solutions in terms of operational cost for providing a low-power interface to sensors for data communication.

IoT communications should ideally be:

• Low power.
• Low cost.
• High number of connections.
• Long battery life.
• Long range.
• Low bitrate.
• Low storage capacity.
• Low processing capacity.
• Small size devices.
• Simple network protocols and architecture.
• Relaxed latency.

LoRa.

LoRa is a Low Power Wide Area Network (LPWAN) based wireless technology that is managed by the LoRa Alliance. LPWAN is used for long range communications in Wireless Sensor Networks. Its standard supports the IEEE802.15.4 communication standard. As LoRa technology does not require line-of-sight, it is a suitable candidate for both urban and rural locations. LoRa technology is established on a technology known as LoRaWAN, which is based on the pure ALOHA scheme.

LoRa Characteristics:

• High Sensitivity (Gateways: up to -142 dBm, End Nodes: Up to -137 dBm).
• LoRa modulation: A typical channel bandwidth of 125 KHz using a version of Chirp Spread Spectrum (CSS).
• Strong indoor penetration: up to 20dB penetration (deep indoor) with high spreading factor.
• Long range communication (up to 15 Km).
• Resistant to signal weakening, multi-path and Doppler Effect.
• Robust to channel noise due to it occupying the whole channel bandwidth to broadcast a signal.

HaLow.

Devices using IEEE802.11ah can cover a range of about two hundred meters to a few kilometers. To improve on the energy consumption rate of the IEEE 802.11ah solution further, the Wi-Fi working group has recently introduced a low-power solution, Wi-Fi HaLow, into the standard.

Wi-Fi HaLow operates in the spectrum lower than one GHz to offer lower power and longer range connectivity, thus augmenting Wi-Fi. Wi-Fi HaLow meets many of the IoT (Internet of Things) unique requirements to allow various use cases in agricultural, industrial, smart city and smart building environments.

Wi-Fi HaLow enables the low power connectivity required for applications including wearables and sensor networks. It provides a connection that is more robust in difficult environments where it is important to penetrate walls and other barriers, and its range is longer than many other IoT technology options.

Sigfox.

Sigfox is managed as a proprietary network and is low-power wireless technology that can be used to implement long range end-to-end communications. It supports the IEEE 802.15.4 communication standard. Sigfox employs an UNB scheme at the PHY layer. Due to the shortcomings of commonly used MAC schemes, Sigfox uses the ALOHA scheme, which provides a random communication channel access service at the MAC layer. A random FDMA (RFDMA) scheme may also be employed as a Sigfox network MAC layer. Sigfox technology is suitable for line-of-sight transmission of small amounts of data using the free-license ISM RF in sub 1 GHz ranges like 915 MHz and 868 MHz. Sigfox devices transmit at a data rate of 100 bits per second.

Sigfox Characteristics.

• Proprietary system.
• The physical layer based on an Ultra-Narrow band wireless modulation.
• Low power.
• Low throughput (100 bps).
• 140 messages per day, per device.
• Extended range (up to 50 km).
• Cloud platform with Sigfox –defined API for server access.
• Subscription-based model.
• Roaming capabilities.