The application belongs to the
electromagnetic field and
microwave technology field, and particularly relates to a common-
caliber antenna array with three-frequency and ultra-
wideband electromagnetic self-compatibility characteristics. The three-frequency electromagnetic self-compatibility
base station common-
caliber antenna array comprises a double-frequency self-compatibility low-frequency antenna, a medium-frequency
antenna array, a high-frequency antenna array and a three-frequency self-compatibility array reflection floor; the ultra-
wideband electromagnetic self-compatibility common-
caliber base station antenna array comprises a
wideband self-compatibility low-frequency antenna, an ultra-
wideband antenna array and a wideband self-compatibility array reflection floor. The medium-frequency antenna array is composed of M1xM1 medium-frequency antenna units with the same structure. The high-frequency antenna array (3) is composed of M2xM2 high-frequency antennas (6) with the same structure. The ultra-
wideband antenna array is composed of NxN ultra-
wideband antenna units with the same structure. In the application, the working
frequency band of the three-frequency electromagnetic self-compatibility common-caliber
base station antenna array is 0.79-1.0 GHz, 1.7-2.7 GHz and 3.1-4.1 GHz; the working
frequency band of the ultra-wideband electromagnetic self-compatibility common-caliber
base station antenna array is 0.69-0.96 GHz and 1.6-3.2 GHz.