FEATURES

• Optimized for Bluetooth® 5.1 AoA / AoD direction

finding

• 16 phase balanced antenna ports with 50Ω termination

• Soft antenna switching (AoDTX-mode) to reduce

unwanted spectral emissions in AoD 2s slot operation

(Patent Pending)

• Bluetooth AoA/AoD 1μs and 2μs slot compliant

• Settling time typical 250ns (AoA)

• Insertion loss typically 2.7dB

• Frequency range 2.402 – 2.480 GHz

• Start-up time typically 15s

• Supply voltage 1.7V-3.6 V, nominal 3.0 V

• Low current consumption

• Single-ended 50Ω matched antenna ports

• Single-ended 50Ω matched transceiver interface

• GPIO interface

APPLICATIONS

• Accurate Indoor Positioning and Navigation systems

• Asset tracking in factories, offices, logistics etc.

• Item finding

• Access control, People tracking

• Wayfinding

• Point-of-interest services

• Proximity marketing

• Shopping guidance and assistance

• Equipment and facilities utilization

• Consumer behaviour analysis

GENERAL DESCRIPTION

CoreHW AoA / AoD Antenna switch

CHW1010 is a single chip phase matched SP16T antenna

switch array which is a key enabler for high accuracy1) BLE

Angle-of-Arrival (AoA)2) and Angle-of-Departure (AoD)2)

positioning systems with single or multiple locators. Low

phase-mismatch between switch paths minimises residual

error in computed angles of beam direction and

subsequently improves estimated location accuracy.

A single CHW1010 switch can support an antenna array up

to 16 single-ended 50Ω antennae. Larger antenna count

arrays can be supported by combining multiple CHW1010

devices. The unused and inactive antenna ports are

internally terminated to 50Ω termination. Open or short

termination variants are available on request.

To enable high performance AoD operation CHW1010

includes a soft antenna switching function (AoDTX-mode)

that reduces unwanted spectral emissions and helps

compliance with Bluetooth 5.1 standard and FCC/ETSI

regulatory requirements.

CHW1010 can be controlled using a simple 6-pin GPIO

interface. Reduced GPIO count configurations are possible.

CHW1010’s low power consumption and fast start-up time

with only few external components make it ideal for small

low-cost battery powered devices.

1) Optimized systems reach positioning accuracy of 0.1…0.5m depending on

antenna performances, locator matrix configuration, Bluetooth radio signal

propagation environment, location software performance etc.

2) Bluetooth Low Energy 5.1 onwards.