Frequency reconfigurable multiband planar antenna with wide tuning frequency range

I. Rouissi (1) , Jean Marie Floc'H (2) , H. Trabelsi (1) , I. Ben Trad (2)

1 Laboratoire de Rayonnement Thermique
2 IETR - Institut d'Électronique et des Technologies du numéRique

In this paper, a frequency reconfigurable triband antenna was designed for multi-standards wireless applications. The reference antenna was optimized to radiate at F1=2.45 GHz. Then, we integrated a lumped capacitor and a varactor diode in two opposite corners of the square patch. Depending on the reverse bias voltage V applied to the varactor diode, both generated resonant frequencies F2 and F3 were electrically controlled. When changing V from 0 to 8v, F2 shifts from 0.64 to 1.42GHz and F3 still changeless. Then, beyond V=8v, F2 disappears and F3 becomes easily reconfigurable, thus enhancing the frequency agility capabilities of the proposed antenna. A wide tuning frequency range from 0.64 to 2.1 GHz was obtained while the operating frequency of the reference antenna F1=2.45 GHz still maintained. A prototype was manufactured and characterized. Related results were presented and discussed. © 2016 European Association of Antennas and Propagation.

Mots clés: Antennas; Capacitance; Diodes; Frequency agility; Natural frequencies; Reconfigurable hardware; Tuning; Varactors; Wireless telecommunication systems; Frequency reconfigurable antenna; Multiband antennas; Multiband planar antennas; Operating frequency; Reverse bias voltage; Varactor diodes; Wide tuning; Wireless application; Microwave antennas

Domaines: Réseaux et télécommunications [cs.NI]; Electronique

I. Rouissi, Jean Marie Floc'H, H. Trabelsi, I. Ben Trad. Frequency reconfigurable multiband planar antenna with wide tuning frequency range. 10th European Conference on Antennas and Propagation, EuCAP 2016, Apr 2016, Davos, Switzerland. pp.7481366, ⟨10.1109/EuCAP.2016.7481366⟩. ⟨hal-01368111⟩