DTC-Enabled Frequency-Tunable Inverted-F Antenna for IoT Applications

In this letter, an integrated frequency-tunable inverted-F antenna is presented. Thanks to a reconfigurable circuit using a digitally tunable capacitor (DTC), the antenna resonant frequency can be shifted over 32 different positions from 600 to 960 MHz. This tunability is used to compensate the freq...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2020-02, Vol.19 (2), p.307-311
Main Authors: Houret, Thomas, Lizzi, Leonardo, Ferrero, Fabien, Danchesi, Christophe, Boudaud, Stephane
Format: Article
Language:English
Subjects:
Antenna accessories
Antenna measurements
Antenna radiation patterns
Antennas
Capacitance
Circuits
Digitally tunable capacitor (DTC)
Electromagnetism
Engineering Sciences
frequency-tunable antenna
integrated antenna
Internet of Things
Internet of Things (IoT)
inverted-F antenna (IFA)
Power consumption
reconfigurable antenna
Reconfiguration
Resonant frequencies
Resonant frequency
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Description
Summary:In this letter, an integrated frequency-tunable inverted-F antenna is presented. Thanks to a reconfigurable circuit using a digitally tunable capacitor (DTC), the antenna resonant frequency can be shifted over 32 different positions from 600 to 960 MHz. This tunability is used to compensate the frequency detuning caused by the change in the antenna close surrounding. The small dimensions as well as the digital control and the low power consumption of the reconfiguration circuit make the proposed antenna a good candidate for Internet of Things applications.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2019.2961114