A single radiator with four decoupled ports for four by four MIMO antennas and systems

Abstract

This paper presents a new way to implement four by four MIMO antennas in a mobile terminal. By properly choosing the position of the feeding and shorting pin on only one radiator, the proposed design can offer four decoupled and uncorrelated antenna ports. All of the four antennas resonant at the 3.5GHz band. The superiority of the proposed antenna is verified by measurement. Measured S-parameter, total efficiency and envelop correlations between each port demonstrate that the proposed design is simple and effective for any LTE-Advanced enable systems.