GALL, Timothee Le; GHIOTTO, Anthony; VARAULT, Stefan; MORVAN, Gwenael; LOUIS, Bruno; PILLET, Gregoire

doi:10.23919/eumc50147.2022.9784159

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GALL, Timothee Le
Laboratoire de l'intégration, du matériau au système [IMS]

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

VARAULT, Stefan

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Communication dans un congrès avec actes

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51st European Microwave Conference, EuMC 2021, 2021-02-15, Londres. 2022-04-04

IEEE

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A novel technic of on-antenna power combining based on a quadruple-fed off-centered aperture-coupled microstrip patch antenna (ACMPA) is proposed in this paper. Four driving signals are combined into two off-centered apertures electrically coupled to a radiating patch antenna. As a result, higher efficiency and improved transmitted power are achieved by removing lossy power-combiner either implemented on printed circuit board (PCB) or on monolithic microwave integrated circuit (MMIC). Moreover, compared to a dual-polarized centered aperture-coupled microstrip patch antenna, this type of feeding reduces the cross-polarization level as each slot is separated. As a proof of concept, the passive and active versions of the antenna are designed and fabricated at 2.45 GHz. For comparison purpose, the single-ended off-centered aperture-coupled passive and active versions are also fabricated. The results show +5.6 dB of transmitting power compared to the single-ended active version, demonstrating the on-antenna power combining capacity of this type of antenna while keeping a symmetrical radiation pattern and very good cross-polarization levels.< Réduire

Mots clés en anglais

active antennas

aperture-coupled patch antennas

multiport antennas

on-antenna power combining

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Quadruple-fed Aperture-coupled Microstrip Patch Antenna for On-antenna Power Combining

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