Telecoms, Datacoms, Wireless, IoT


5G beam steering antenna

30 April 2019 Telecoms, Datacoms, Wireless, IoT

The KSF410.A from Taoglas is a 28 GHz 5G millimetre-wave beam steering antenna with a sixteen-element linear phased array. It delivers a gain of up to 17 dBi and has a wide 3 dB beamwidth for wide angular coverage in azimuth, with most of the energy focused within 45° of the main beam.

The antenna employs beam steering/forming at the RF level using RF phase and amplitude shifters, or beam forming networks. Antennas in the array are grouped in groups of four, each group with an IC phase shifter, LNA and power amplifier (PA), allowing a field of view (FoV) of ±45°.

The KSF410.A uses a Ka-band 5G chipset that supports four Tx/Rx radiating elements, includes all requisite beam steering controls for 5-bit phase and gain control, and operates in half-duplex fashion to enable a single antenna to support both Tx and Rx operation. The provided SPI interface allows direct access to the chipset to control the device configuration.

The antenna has up to 2 GHz impedance bandwidth, which gives upwards of 2 Gbps data rates – well suited for fixed and mobile broadband capacity-hungry next-generation networks. It also features higher than 20 dB cross polarisation rejection, making it less susceptible to interference from undesired signals.

The antenna can be directly connected ­using standard 2,92 mm and SMPM connectors. It is ideal for use at user equipment for client-side integration or inside a Ka-band 5G access point. Their application can be for indoor and outdoor wireless coverage for mobile or fixed broadband access in 5G routers and/or access points. There is also an option to use a coaxial-to-waveguide adaptor in conjunction with ultra-low-loss, pre-connectorised cables.

For more information contact Andrew Hutton, RF Design, +27 21 555 8400, andrew@rfdesign.co.za, www.rfdesign.co.za



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