An Array of Tilted Dipoles Loaded with Artificial Dielectrics with an Asymmetric Pattern

Conference paper (2019)

Authors

C. Yepes Julia Tera-Hertz Sensing - EEMCS
A. Neto Tera-Hertz Sensing - EEMCS
D. Cavallo Tera-Hertz Sensing - EEMCS
E Gandini TNO
Research Group
Tera-Hertz Sensing (EEMCS) (TU Delft)
Copyright: © 2019 C. Yepes Julia, A. Neto, D. Cavallo, E Gandini, Frank E. Van Vliet, Stefania Monni
DOI: https://doi.org/10.1109/PAST43306.2019.9021086
Method of moments Pattern shaping Low-profile Antenna array
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Published Date

2019

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Tera-Hertz Sensing

Abstract

We present the design of an array of tilted dipoles loaded with artificial dielectrics, to achieve asymmetric radiation patterns. First, a simplified array element consisting of skewed stacked dipoles in the presence of a backing reflector is studied, by means of a dedicated spectral periodic method of moments (MoM). The analysis of the stacked dipoles provides guidelines to design arrays with certain radiation characteristics, by varying the tilt angle and the inter-element spacing. Based on the findings of numerical analysis, we then propose a tilted dipole element design with artificial dielectric loading to implement the pattern asymmetry. The design includes the feeding structure and the balun transition to a 50-Ohm coaxial line.