An antenna for a uniform radiation, comprising: a substrate, which is a grounded plane substrate; a plurality of antenna units (501, 502, 503, 504, 505, 506) disposed in a peripheral region of the substrate, wherein there are two different types of antenna units (501, 502, 503, 504, 505, 506) each type being configured to receive and transmit electromagnetic waves in a different frequency band, the different types of antenna units being alternately disposed at the peripheral region of the substrate; and the plurality of antenna units (501, 502, 503, 504, 505, 506) are oppositely disposed at the substrate in pairs, and are configured to serve as reflectors for each other; every antenna unit comprises: a body of the antenna unit including an inverse-F portion, an upper half of the antenna unit including a strip-shaped radiating member extended from the inverse-F portion; a downward-protrudent feeding member in respect of the substrate formed in a middle portion of the radiating member; a connecting member formed in a lower half of the antenna unit, being a member interconnecting the antenna unit and the substrate, and connected with the radiating member; and at least two upward-protrudent grounding members (103, 104) in respect of the substrate formed on the connecting member, and jointly grounded with the substrate through the connecting member, wherein the downward-protrudent feeding member is extended to a portion between the two upward-protrudent grounding members (103, 104). a substrate, which is a grounded plane substrate; a plurality of antenna units (501, 502, 503, 504, 505, 506) disposed in a peripheral region of the substrate, wherein there are two different types of antenna units (501, 502, 503, 504, 505, 506) each type being configured to receive and transmit electromagnetic waves in a different frequency band, the different types of antenna units being alternately disposed at the peripheral region of the substrate; and the plurality of antenna units (501, 502, 503, 504, 505, 506) are oppositely disposed at the substrate in pairs, and are configured to serve as reflectors for each other; every antenna unit comprises: a body of the antenna unit including an inverse-F portion, an upper half of the antenna unit including a strip-shaped radiating member extended from the inverse-F portion; a downward-protrudent feeding member in respect of the substrate formed in a middle portion of the radiating member; a connecting member formed in a lower half of the antenna unit, being a member interconnecting the antenna unit and the substrate, and connected with the radiating member; and at least two upward-protrudent grounding members (103, 104) in respect of the substrate formed on the connecting member, and jointly grounded with the substrate through the connecting member, wherein the downward-protrudent feeding member is extended to a portion between the two upward-protrudent grounding members (103, 104). a body of the antenna unit including an inverse-F portion, an upper half of the antenna unit including a strip-shaped radiating member extended from the inverse-F portion; a downward-protrudent feeding member in respect of the substrate formed in a middle portion of the radiating member; a connecting member formed in a lower half of the antenna unit, being a member interconnecting the antenna unit and the substrate, and connected with the radiating member; and at least two upward-protrudent grounding members (103, 104) in respect of the substrate formed on the connecting member, and jointly grounded with the substrate through the connecting member, wherein the downward-protrudent feeding member is extended to a portion between the two upward-protrudent grounding members (103, 104).