UWB Antenna with Dynamically Reconfigurable Notch-Band using Rectenna and Active Booster

Abdul Quddious, Muhammad Ali Babar Abbasi, Farooq A. Tahir, Marco A. Antoniades, Photos Vryonides, Symeon Nikolaou

Research output: Contribution to journalArticle

1 Citation (Scopus)
144 Downloads (Pure)

Abstract

In this study, an ultra-wideband (UWB) monopole antenna with a dynamically reconfigurable notch band, along with the associated RF-triggered power management unit (PMU) that enables the dynamic reconfigurability, are presented. The UWB monopole antenna has a rectangular slot which hosts a J-shaped stub, electrically connected with the radiator using one PIN diode switch. When the diode is OFF, the monopole antenna has a UWB characteristic, while when it is turned ON a frequency notch is created at 5.6 GHz. The diode is fed from a PMU that consists of a rectenna and a DC-to-DC active booster. When the rectenna that consists of a patch antenna and a rectifier receives a -11 dBm or higher 5.6 GHz signal, it rectifies the RF signal into a sufficiently high DC voltage. The rectified DC voltage is applied to the cascaded DC-to-DC booster as enabling signal, and the booster provides at its output terminal sufficient DC power to actuate the PIN diode and thus dynamically reconfigure the UWB antenna. The dynamically reconfigurable notch band is created immediately in response to the reception of an external, -11 dBm RF signal at 5.6 GHz, and it disappears in real time immediately after the external RF signal is removed.
Original languageEnglish
Pages (from-to)2046 - 2052
JournalIET Microwaves, Antennas and Propagation
Volume13
Issue number12
Early online date02 Jul 2019
DOIs
Publication statusPublished - 07 Oct 2019

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