LOW BAND ANTENNA POSSIBLE TO BE POSITIONED ON A HIGH BAND NETWORK ANTENNA TO FORM A BI-BAND FREQUENCY ANTENNA SYSTEM

摘要

The invention relates to a low band antenna (12) capable of operating in a first frequency band centered on a first low frequency frequency, comprising at least a first radiating element (14), able to be positioned on a high band network antenna. (16) operating in a second frequency band centered on a second frequency called high frequency, said high frequency being strictly greater than said low frequency, so as to form a two-band frequency antenna system (10), said antenna network band high (16) having an array of second radiating elements (18) each providing electromagnetic radiation. Each first radiating element (14) comprises perforations (24) whose shape is dependent on the shape of the second radiating elements (18), the shape of the perforations being determined so as to propagate the electromagnetic radiation of each second radiating element without disturbance, allowing the high band antenna (16) to operate without disturbance in said second frequency band in the presence or absence of the low band antenna. The invention also relates to a two-band antenna system of associated frequency.