A Millimeter Wave Multi-beam Transparent Transmitarray Antenna at Ka-band - Université de Rennes Accéder directement au contenu
Article Dans Une Revue IEEE Antennas and Wireless Propagation Letters Année : 2019

A Millimeter Wave Multi-beam Transparent Transmitarray Antenna at Ka-band

Résumé

This letter presents a transmitarray antenna (TA) in the 27.5-29.5 GHz frequency band. The proposed TA is optically transparent, offers the possibility of steering the beam in the H-plane from -30° to 30°, and has a low profile and lightweight. One can achieve these properties using a novel unit-cell, composed of meshed double-circle rings printed on polymethylmethacrylate (PMMA) substrates, a plastic material transparent to visible light. This unit-cell provides a phase-shift of 300° for an insertion loss lower than 1 dB at 28.5 GHz. In turn, the TA sources consist of 2×2-element arrays of aperture-coupled stacked patch antennas. The choice of a patch array over a horn array allows one to reduce the total profile and weight of the TA. We have fabricated and tested a transparent TA with a diameter of 9.9 wavelengths at 28.5 GHz, yielding a broadside gain of 25 dBi and -1 dB gain bandwidth of 1.8 GHz, off-axis 30° beam presents a peak gain of 21.5 dBi and -1 dB gain bandwidth of 1.4 GHz. The measured results are in good agreement with the simulated ones all over the frequency band of interest.
Fichier principal
Vignette du fichier
Liu_et_al-2019-A_Millimeter_Wave_Multi-beam_Transparent_Transmitarray_Antenna_at_Ka-band.pdf (1.63 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02083376 , version 1 (16-04-2019)

Identifiants

Citer

Guang Liu, Mohammad Reza Dehghani Kodnoeih, Kien T. Pham, Eduardo Motta Cruz, D. Gonzalez-Ovejero, et al.. A Millimeter Wave Multi-beam Transparent Transmitarray Antenna at Ka-band. IEEE Antennas and Wireless Propagation Letters, 2019, 18 (4), pp.631-635. ⟨10.1109/LAWP.2019.2899925⟩. ⟨hal-02083376⟩
126 Consultations
258 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More