Phased Array With Pattern Shaping and Scan Loss Reduction for Millimeter Waves

Journal article (2023)

Authors

A. Neto Tera-Hertz Sensing - EEMCS
D. Cavallo Tera-Hertz Sensing - EEMCS
Research Group
Tera-Hertz Sensing (EEMCS) (TU Delft)
Copyright: © 2023 R.M. van Schelven, Waqas Syed, G. Carluccio, Kostas Doris, Anton de Graauw, A. Neto, D. Cavallo
DOI
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https://doi.org/10.1109/TAP.2022.3217340
Phased array Artificial dielectric layers Pattern shaping Leaky waves Millimeter waves Pattern diversity
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Published Date

2023

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Tera-Hertz Sensing

Abstract

In this work, we investigate antenna architectures to implement dual-mode operation in phased array designs. Planar slot antenna elements are used in array configuration, in combination with artificial dielectrics layers (ADLs) located in the close proximity of the array, to achieve pattern shaping. The artificial dielectric superstrate supports the propagation of leaky waves that can be optimized to enhance the gain in a specific angular region or to enlarge the array field of view. By controlling the amplitude and phase of the antenna elements, the radiation patterns can be combined to realize either wide or narrow beams. This concept present advantages for both millimeter-wave (mm-wave) communication and radar applications. A design of a four-element array fabricated in standard printed circuit board (PCB) technology validates the feasibility of the dual-mode operation. The measured results also show good agreement with simulations.