Common-Mode Loss Mitigation of a Differentially Fed Eight-port On-antenna Power Combining Patch Implemented in a Scanning Phased Array

LE GALL, Timothée; GHIOTTO, Anthony; VARAULT, Stefan; MORVAN, Gwenaël; LOUIS, Bruno; PILLET, Grégoire

doi:10.23919/eucap57121.2023.10133416

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LE GALL, Timothée
Laboratoire de l'intégration, du matériau au système [IMS]

GHIOTTO, Anthony
Laboratoire de l'intégration, du matériau au système [IMS]

VARAULT, Stefan

Langue

Communication dans un congrès

Ce document a été publié dans

2023 17th European Conference on Antennas and Propagation (EuCAP), 2023 17th European Conference on Antennas and Propagation (EuCAP), 2023-03-26, Florence. 2023-03-26p. 1-5

IEEE

Résumé en anglais

On-antenna power combining is an emerging topic of high interest, where high-power amplifiers (HPA) are directly connected to a multiport antenna. Compared to other on-circuit power combining technics, improved efficiency, higher radiated power, smaller associated monolithic microwave integrated circuits (MMIC) and enhanced heat dissipation are achieved. This technic can be used in addition to spatial power combination within an array, to further improve the radiated power. However, several of these multiport antennas result in a common-mode parasitic effect, only occurring when the beam is steered, which reduces the radiated power. This paper exposes this phenomenon through infinite array simulations and explains its origin. A solution to mitigate this problem is finally proposed.< Réduire

Mots clés

Phased arrays

Electromagnetic heating

Cogeneration

Europe

MMICs

Microwave circuits

Microwave antenna arrays

Active antennas

Infinite array

Multiport antennas

On-antenna power combining

Scanning Phased Array

Infinite Array

High PAmplifier

Aperture

Output Power

Phase Difference

Reflection Coefficient

Surface Current

Common Mode

High Symmetry

Current Magnitude

Scanning Angle

Patch Antenna

TM Polarization

TE Polarization

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