Stay Tuned: Dynamic Band-Switching Seeing Growth in IoT Antennas

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By Tancred Taylor | 2Q 2021 | IN-6111


The Way of the Smartphone


Dynamic band-switching is not new. Back in February 2013, Qualcomm announced its RF360 chipset, which included an antenna switch and dynamic antenna-matching tuner to enable smartphones to support and optimize performance on all Long Term Evolution (LTE) frequency bands between 700 MHz and 2700MHz in real time. What is newer is its increased adoption in the Internet of Things (IoT). Band-switching has been less of an issue in the IoT market because of the relative simplicity of device protocols: Bluetooth, Wi-Fi, Global Navigation Satellite System (GNSS), and Industrial, Scientific, and Medical (ISM) devices operate on a low number of frequencies, with the result that a relatively simple passive component can suit most requirements. Module vendors and antenna vendors have frequently partnered together to offer off-the-shelf joint solutions for Bluetooth, Wi-Fi, and GNSS, in particular: these frequently consist of a Surface-Mount Technology (SMT) chip or Printed Circuit Board (PCB) trace antenna mounted on the same board as a module, ready for integration into any device. Because of the simpli…

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