https://orcid.org/0000-0002-5813-5181
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Abstract
This paper presents electromagnetic modeling of an active integrated antenna (AIA) with a MESFET device, located inside an infinite rectangular waveguide. This work highlights the influence of the active device in the antenna performance for Ultra Wide Band (UWB) systems. In fact, the method of Moments (MoM) combined with the generalized equivalent circuits (GEC) approach in conjunction with the physical-based small-signal model is applied to compute the input impedance, the reflection coefficient, the current density and the electric field distributions of the AIA resonating at 4 GHz. The physical-based small-signal model was employed to characterize the active device. For validation purpose, the calculated results are compared to the simulated ones on the ADS Agilent simulator. Using S11 < −10 dB technique, it was found that the antenna bandwidth is superior to 500 MHz. In this sense, the collective gain is therefore investigated and calculated for the entire AIA.
ORCID
Takoua Soltani http://orcid.org/0000-0002-5813-5181
Imen Soltani http://orcid.org/0000-0003-2039-2665
Additional information
Notes on contributors
Takoua Soltani
Takoua Soltani was born in 1990 in Jendouba, Tunisia. She received a degree in the national engineering in Telecommunications from ENIT Tunisia in 2013. She is currently working toward the PhD degree at ENIT (SYSCOM laboratory). Her current research interest focuses on the modeling of active integrated antennas and RF communications.
Imen Soltani
Imen Soltani was born in 1990 in Jendouba, Tunisia. She received a degree in the national engineering in Telecommunications from ENIT Tunisia in 2013. She is currently working toward the PhD degree at ENIT (SYSCOM laboratory). Her current research interest focuses on the modeling of metasurfaces and holography.
Taoufik Aguili
Taoufik Aguili received a degree in electrical engineering and the PhD degree in Telecommunications from INSA, France, in 1990. He is a Professor with the National Engineering School of Tunis (ENIT), Tunis, Tunisia. His research interests include electromagnetic microwave circuit modeling and analysis of scattering and propagation phenomena in free space. He is currently a Director of the Communications System Laboratory (SYSCOM).