Product Introduction: Array Sector Antennas for 3 GHz LTE band
Channel: RF elements s.r.o.
Date: 2022-06-02

RF elements Array Sector Antennas - AS-3-17HV, AS-3-17DS, AS-3-18DS - are suitable for 3 GHz LET bands for mid to low density AP coverage scenarios offering amazing stability of gain across the whole useful bandwidth and low side lobe performance. 

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The AS-3-17HV, AS-3-17DS, and AS-3-18DS are great antennas for dense colocations thanks to our patented frequency-selective surface Backshield™. It is integrated directly in the antenna body and suppresses azimuthal side lobes caused by parasitic radiation due to surface waves in the PCB the patches are etched on.

The radiation pattern of these antennas is wide in the azimuth and narrow in the elevation plane. This shape of radiation pattern is good for applications where the customers are spread out throughout the coverage area. Thanks to the lower path loss at 3 GHz frequencies, the distant customers in rural areas are easy to reach.  

The landscape profile should be rather flat, or mildly hilly. If you use them in hilly or mountain regions, the elevation-narrow beam will not cover the valleys well.

The AS antennas provide a great network performance thanks to gain and radiation pattern stable over the whole useful bandwidth. They are mainly useful in cases when reaching distant customers is more important than achieving high network throughput.

With AS-3-17HV, an industry standard radio mounting bracket lets you use the antenna with common radio platforms with RP-SMA connectors and the plastic hood protects the radio from environmental influences - a WISP industry standard established by RF elements.

The AS-3-17DS and 3-18DS feature a pair of N-female connectors with innovative covers developed by RF elements for perfect insulation of the connector interface from outdoor elements - the sliding caps with silicone seals provide IP55 rated protection improving durability of the radio connection.

Mechanical & assembly part 

The antennas’ body is made of high quality materials - extruded and stamped aluminum to protect the antenna from oxidizing, UV resistant plastic, and stainless steel hardware. The antennas will withstand extreme environmental conditions with temperatures from -35 to +60 degrees Celsius. The durable build of the ASs weighs only a few kilograms and has a practical handle for carrying or to be clipped to a carabiner and a harness while climbing a tower, another industry standard established by RF elements.

The bracket of the ASs is designed to ensure easy handling, assembly, and tower mounting. Only four M8 bolts are needed to assemble the antennas and additional four bolts to attach it to the tower.

The four big bolts have black colored anti-friction surface coating that effectively protects the bolts from seizing and makes the bracket easy to use - you can check our short video about the anti-friction coating for more information: https://youtu.be/1gouN4hksUU

For the pole diameter, if smaller than 57 mm, install the bracket as shown so the bolts don’t protrude too much. If the pole diameter is larger than 57 mm, flip the bracket for the best results.

Once the antenna is aimed and the tilt adjusted, you can install the radio by clipping in onto the bracket and connecting the SMA cables in case of the H/V polarized AS-3-17HV, or connect the N-connectorized cables to the DS version of the antennas and you’re ready to go.

0:00 Intro
0:33 RF features
1:21 Radio mounting options
1:54 Mechanical properties & Installation
2:42 Anti-seize surface coated bolts
2:54 Pole diameter

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