Broadband Passive Two-Feed-Per-Beam Pillbox Architecture for High Beam Crossover Level
| Autor: | Mauro Ettorre, Ronan Sauleau, Terry Bateman, Thomas Potelon, Jim Francey |
|---|---|
| Přispěvatelé: | Institut d'Electronique et de Télécommunications de Rennes (IETR), Université de Nantes (UN)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), European Union Seventh Framework Programme (FP7/2007-2013) through the MiWaveS Project [619563], European Union through the European Regional Development Fund (ERDF)European Union (EU), Ministry of Higher Education and Research, Brittany and Rennes Metropole, through the Contrat de plan Etat-Region (CPER) Project SOPHIE/STIC and Ondes, Institut d'Électronique et des Technologies du numéRique (IETR), Nantes Université (NU)-Université de Rennes 1 (UR1), Optiprint AG, Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Physics
Waveguide (electromagnetism) business.industry Aperture Frequency band Crossover multi-beam antennas substrate integrated waveguide (SIW) technology 020206 networking & telecommunications 02 engineering and technology 7. Clean energy Wavelength Optics Amplitude pillbox 0202 electrical engineering electronic engineering information engineering multiple-feed-per-beam Physics::Accelerator Physics Crossover level Electrical and Electronic Engineering Antenna (radio) business [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing Beam (structure) |
| Zdroj: | IEEE Transactions on Antennas and Propagation IEEE Transactions on Antennas and Propagation, Institute of Electrical and Electronics Engineers, 2020, 68 (1), pp.575-580. ⟨10.1109/TAP.2019.2934353⟩ IEEE Transactions on Antennas and Propagation, 2020, 68 (1), pp.575-580. ⟨10.1109/TAP.2019.2934353⟩ |
| ISSN: | 0018-926X |
| DOI: | 10.1109/TAP.2019.2934353⟩ |
| Popis: | Multi-beam antennas based on quasi-optical systems feeding a single radiating aperture generate orthogonal beams with a low crossover level between adjacent beams (around −13 dB at most). To circumvent this limitation, we present a circuit architecture allowing the excitation of a quasi-optical system (pillbox system) with two feeds per beam to reach much higher beam crossover levels. To this end, a specific eight-beam passive circuit is designed to cover the 76–86 GHz frequency band. It is based on a single-layer substrate integrated waveguide (SIW) coupler followed by equiphase SIW lines. The maximum phase and amplitude imbalance between the sources are only 35° ( $\lambda _{g} / {1g}$ , with $\lambda _{g}$ the wavelength in the SIW lines at the design frequency) and 1.3 dB, respectively, and the isolation is better than −19 dB. The measured beam crossover level of the corresponding antenna is better than −3.2 dB, corresponding to an improvement of 16 dB with respect to single-feed-per-beam pillbox systems. The proposed passive architecture offers beam crossover levels suitable for low-cost electronically controlled multi-beam applications, as for next-generation 5G backhauling systems. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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