A photonically-excited leaky-wave antenna array at E-band for 1-D beam steering
Publisher:
MDPI
Issued date:
2020-05-18
Citation:
Pascual-Gracia, Á. J., Ali, M., Carpintero Del Barrio, G., Ferrero, F., Brochier, L., Sauleau, R., García-Muñoz, L. E., and González-Ovejero, D. (2020). A Photonically-Excited Leaky-Wave Antenna Array at E-Band for 1-D Beam Steering. Applied Sciences, 10(10), 3474.
xmlui.dri2xhtml.METS-1.0.item-contributor-funder:
European Commission
Ministerio de Economía y Competitividad (España)
Sponsor:
Á.J.P.-G., D.G.-O., and R.S. acknowledge funding by Labex CominLabs and by the European Union
through the European Regional Development Fund (ERDF), and the French region of Brittany, Ministry of Higher Education and Research, RennesMétropole and ConseilDépartemental 35, through the CPER Project SOPHIE/STIC and Ondes. The work of M.A. and G.C.D.B. has been supported by the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 642355 FiWiN5G. L.E.G.-M. and G.C.D.B. acknowledge the Spanish Ministerio de Economia y Competitividad through Programa Estatal de Investigación, Desarrollo e Inovación Orientada a los Retos de la Sociedad (grant iTWIT, TEC2016-76997-C3-3-R).
Project:
info:eu-repo/grantAgreement/EC/H2020/GA-642355
Gobierno de España. TEC2016-76997-C3-3-R
Keywords:
Beam scanning
,
Beam steering
,
E-band
,
Epoxy bonding
,
Leaky-wave antenna
,
Pcb antenna
,
Photomixer
,
Photonic antenna
,
Probe de-embedding
,
RF choke
Rights:
© 2020 by the authors
Atribución 3.0 España
Abstract:
This manuscript reports the first leaky-wave antenna (LWA) array excited by a photomixer as well as its potential application for alignment in wireless links. The designed array is manufactured in printed circuit board (PCB) technology, works at the E-band (fr
This manuscript reports the first leaky-wave antenna (LWA) array excited by a photomixer as well as its potential application for alignment in wireless links. The designed array is manufactured in printed circuit board (PCB) technology, works at the E-band (from 75 to 85 GHz), and provides a directive beam of about 18 dBi with a frequency scanning span of 22°. The antenna element consists of a microstrip line periodically loaded with stubs, and it has been designed employing a hybrid approach combining full-wave simulations and transmission line theory. This approach enables the optimization of the periods when the open-stopband of the LWA is mitigated or removed at the frequency of broadside emission. The proposed antenna was first tested using a ground signal ground (GSG) probe; the measured return loss and radiation patterns of the fabricated prototype were in good agreement with full-wave simulations. Then, the LWA array was integrated with the photomixer chip using conductive epoxy threads. Measurements of the radiated power yielded a maximum of 120 µW at 80.5 GHz for a 9.8 mA photocurrent. Finally, the antenna was used in a 25 cm wireless link, obtaining a 2.15 Gbps error-free data rate.
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