TITLE:
The Impact of Substrate Materials to the Design of UWB Modern Antennas
AUTHORS:
Gerard Rushingabigwi, Liguo Sun, Yuxing He, Mengying Zhu, Yongjie Li, Jean de Dieu Ntawangaheza
KEYWORDS:
UWB Antennas, Enhanced Gain, FEM, Ansoft HFSS
JOURNAL NAME:
Journal of Computer and Communications,
Vol.4 No.3,
March
2,
2016
ABSTRACT: The theory of microstrip antennas has
motivated us to design a highly improved gain antenna under this category. It is
a microstrip monopole antenna characterized by omni-directional radiation as
well as a high radiation gain. A review of different methodologies to designing
antennas with broad/ultra-wide band performance for various applications is
enriched by our original antenna design. This is an original model analyzed
over different substrate materials and finally optimized for the bandwidth of (3.3
- 5.8) GHz just below ?10 dB of return loss (RL). The antenna is judged for high
gain when the ground plane size is reduced to nearly half that of substrate. The
impact of the substrate materials is discussed in this article. The master design
tool is Ansoft High Frequency Simulator Structure (HFSS), one of Finite Element
Method (FEM) based software tools. The antenna would be printed on a 1.524 mm
thick Rogers (RO3003C) substrate; overall size of 33.4 × 33.4 squared
millimeters. At the optimal resonance frequency of 3.8 GHz, simulation results perfectly
agree with the standards of UWB antennas, with a high radiation gain and
impedance matching status.