Experimental Validation of a Correcting Coupling Mechanism to Extend the Scanning Range of Narrowband Phased Array Antennas
| Autor: | Isabelle Le Roy-Naneix, Aurelien Ayissi Manga, Christian Renard, Raphaël Gillard, Renaud Loison |
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| Přispěvatelé: | Institut d'Électronique et des Technologies du numéRique (IETR), Nantes Université (NU)-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), Thales Airborne Systems, THALES Airborne Systems, Thales Defence Mission Systems, 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), Université de Nantes (UN)-Université de Rennes 1 (UR1) |
| Rok vydání: | 2020 |
| Předmět: |
Coupling
Radar Phased array Computer science Impedance matching 020206 networking & telecommunications Context (language use) 02 engineering and technology Microstrip law.invention [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism Narrowband antenna arrays law Surface wave 0202 electrical engineering electronic engineering information engineering Electronic engineering surface wave scan blindness coupling Electrical and Electronic Engineering |
| Zdroj: | IEEE Transactions on Antennas and Propagation IEEE Transactions on Antennas and Propagation, Institute of Electrical and Electronics Engineers, 2020, 68 (3), pp.2078-2086. ⟨10.1109/TAP.2019.2957079⟩ IEEE Transactions on Antennas and Propagation, 2020, 68 (3), pp.2078-2086. ⟨10.1109/TAP.2019.2957079⟩ |
| ISSN: | 1558-2221 0018-926X |
| DOI: | 10.1109/tap.2019.2957079 |
| Popis: | International audience; Abstract-This paper presents a technique designed to extend the scanning range of a probe-fed patch array whose performances are limited by scan blindness, due to a strong surface wave coupling. The current framework relates to the context of radar applications requiring a large scanning range (up to 60°) and where no inter-element spacing modification is possible as a result of strong T/R modules integration constraints. The proposed solution is based on the introduction of an additional correcting coupling within the array, by means of microstrip lines connecting the sources two by two. A thorough step-by-step description of the design methodology is introduced. It is then implemented in the case of a single-polarized 10-element patch array operating in X band. Simulation results as well as an experimental validation of the concept are presented. They assess the effective improvement of the active impedance matching and realized gain resulting from the use of connecting lines. |
| Databáze: | OpenAIRE |
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