Parallel Plate Waveguide Feeding Structure for Planar Connected Arrays

Journal article (2022)

Authors

D. Cavallo Tera-Hertz Sensing - EEMCS
Research Group
Tera-Hertz Sensing (EEMCS) (TU Delft)
Copyright: © 2022 D. Cavallo
DOI: https://doi.org/10.1109/LAWP.2022.3145458
Transformers Antenna arrays Impedance Microstrip Wideband arrays Dual-polarization Metals Dielectrics Slabs Antenna feed Feeds
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Published Date

2022

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Tera-Hertz Sensing

Abstract

A novel approach for the practical realization of the feeding lines in connected array of slots is presented. The proposed feed concept is based on a parallel-plate waveguide (PPW) structure and allows simplifying the unit cell design. When compared to the typical integrated coaxial feed, the PPW-based feeding structure can reduce the cost and complexity of the array, by resulting in a lower number of metal layers and by allowing for large diameter vias. Two examples of the unit cell design, based on this new feed concept, are presented; one consists in a single-polarized array of connected slot, covering the band from 70 to 140 GHz; another example is referring to a single- and dual-polarized connected slot array covering the 2-8 GHz range.