1M. Sc. [Engg.] Student, Department of EEE, M.S. Ramaiah School of Advanced Studies, Bangalore, 560 058
2Assistant Professor, Department of EEE, M.S. Ramaiah School of Advanced Studies, Bangalore, 560 058
3Deputy Director (Academics), M.S. Ramaiah School of Advanced Studies, Bangalore, 560 058
Online published on 18 February, 2020.
The modern wireless communication system possess an important constraint on the design of antennas for its conformal structural characteristics. The typical application such as avionics warrants the antenna design to be in flush with the airframe. The antennas for these systems have to be designed with the unique features. The antenna radiator design along with the desired radiation performance in addition to the conformal body shaping is a challenging task. This paper presents, design and simulation study of a wideband conformal antenna that operates in the frequency band ranging from 1.3 GHz to 2.5 GHz.
The main objective of the paper is to perform design and simulations to obtain a conformal antenna geometry with omnidirectional radiation pattern in more than one principal plane. Planar antenna geometries such as planar monopole and cross dipole are identified as the suitable candidates. These planar geometries are designed for the desired specification and its planar structure is modified to a conformal shape without significant changes in its performance. This paper details the iterative design and simulation studies of planar antenna geometries and their modified versions.
The planar configurations of the simulated antenna designs are developed in to corresponding prototypes. CATIA modelling software is used for the conformal shaping. All the simulations are performed using Empire 3D EM Solver and HFSS Solver. The results of the prototype antenna are in close agreement with the simulated antenna results.
Conformal Antenna, Return Loss, Radiation Pattern, Monopole, Dipole
