Compact Reconfigurable Antenna for NB-IoT or LTE-M and MIMO LTE2500 Applications

Autor: Samuel Ouya, Aliou Diallo, Ibra Dioum, Kadidiatou Diallo, Jean-Marc Ribero
Přispěvatelé: École Supérieure Polytechnique - Université Cheikh Anta DIOP de Dakar (ESP - UCAD), Université Cheikh Anta Diop [Dakar, Sénégal] (UCAD), Laboratoire d'Electronique, Antennes et Télécommunications (LEAT), Université Nice Sophia Antipolis (... - 2019) (UNS), Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), École Supérieure Polytechnique de Dakar (ESP), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA), IEEE, Centre National de la Recherche Scientifique (CNRS)-Université Nice Sophia Antipolis (... - 2019) (UNS), Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: International Workshop on Antenna Technology (IWAT 2020)
International Workshop on Antenna Technology (IWAT 2020), Feb 2020, Bucharest, Romania
International Workshop on Antenna Technology (IWAT 2020), Feb 2020, Bucharest, Romania. ⟨10.1109/iWAT48004.2020.1570606312⟩
DOI: 10.1109/iWAT48004.2020.1570606312⟩
Popis: International audience; In this paper, a compact dual-band antenna system for NB-IoT or LTE-M (700-900MHz) and MIMO LTE-2500 dedicated to mobile handsets is presented. The system consists of a dual-band Planar Inverted-F-Antenna (PIFA) for LTE-M and LTE 2500 bands where this designed PIFA is frequency reconfigurable in the LTE-M band. Additionally, another PIFA was designed to cover the LTE- 2500 band to enable Multiple-Input-Multiple-Output (MIMO) communication for this band. Frequency reconfiguration between 700 MHz and 900 MHz is performed by a varactor diode polarized from the RF port using a decoupling circuit to separate DC and RF signals. The compactness of the system,as well as the good isolation between the two antennas, were obtained thanks to the study of the characteristic modes of the mobile phone chassis, where the ideal positions of the antennas can be easily obtained. A prototype of our systemwas fabricated where good frequency reconfiguration and good MIMO performance (TARC and envelope correlation)were achieved.
Databáze: OpenAIRE