Study of a Method for Increasing Isolation Between Closely Spaced Elements integrated in Multi-Standard Multi-Antenna Systems

Lamia Sadaoui (1) , Luca Santamaria (1) , Leonardo Lizzi (1) , Robert Staraj (1)

1 LEAT - Laboratoire d'Electronique, Antennes et Télécommunications

This paper presents the study of a method used for decoupling radiating elements in the case of a multiband structure dedicated to small LTE Smart Cells. This method consists in using a power splitter and a phase shifter connected between the feeds of the two groups of radiating elements. The study begins with a monoband structure made up of printed monopoles and a wired standing one. The impact on the validity of the method, due to the introduction of two additional bands through the addition of parasitic elements was then studied. A prototype was realized and tested and he measurements are discussed in this paper.

Mots clés: antenna feeds; decoupling radiating elements; LTE smart cells; Long Term Evolution; monopole antenna arrays; multifrequency antennas; phase shifters; multistandard multiantenna systems; power splitter; monoband structure; printed monopoles; parasitic elements; antenna radiation patterns; antenna isolation.; mutual coupling; MIMO; multiband structure; monopole antenna

Domaines: Electromagnétisme

Lamia Sadaoui, Luca Santamaria, Leonardo Lizzi, Robert Staraj. Study of a Method for Increasing Isolation Between Closely Spaced Elements integrated in Multi-Standard Multi-Antenna Systems. IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting - AP-S/URSI 2019, Jul 2019, Atlanta, Georgia. pp.1121-1122, ⟨10.1109/APUSNCURSINRSM.2019.8889240⟩. ⟨hal-02085959⟩