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公开(公告)号:US11424530B2
公开(公告)日:2022-08-23
申请号:US17053203
申请日:2019-03-01
发明人: Lei Shi , Cailong Yue , Tushuang Wei , Jin Yang , Wen Ding , Wei Zhao , Mulin Liu , Cong Fu
摘要: A communication antenna and radiation unit thereof with tapered clearance slots for transceiving radiation signals disposed at four corners of the radiation unit. The slots form groups and are arranged and fed by two feeding units. A middle portion of the radiation unit is a flat central platform. Peripheries of the radiation unit are turned up to form folded edges. The communication antenna includes a reflecting plate and a radiation unit operating at a low frequency. The central platform has a high-frequency radiation element. The radiation unit has a small aperture and is lightweight, so the antenna size is reduced, and a radiation performance indicator can be ensured. The radiation unit is applied to a multi-frequency antenna, has little effect on a high-frequency oscillator, and is especially suitable for a multi-frequency base station antenna with a low-frequency unit and a high-frequency unit forming an array in a nested manner.
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公开(公告)号:US10320076B2
公开(公告)日:2019-06-11
申请号:US16062453
申请日:2016-06-18
发明人: Tieyong Fang , Bin Wang , Gang Cheng , Mulin Liu , Zhuohong Huang , Lei Shi , Zeming Fang , Cailong Yue
摘要: An antenna transmission apparatus includes: a housing including an upper cover and a lower cover, and an input shaft and at least two sets of output shafts that are rotatably mounted between the upper cover and the lower cover; and further includes a planetary gear position selection assembly and a unidirectional control assembly. Each set of output shafts includes an output shaft and an auxiliary shaft in transmission fit with the output shaft; the planetary gear position selection assembly includes a planetary gear; the unidirectional control assembly can control the planetary gear to implement position selection and positioning; and the position selection and bidirectional rotation output of the output shafts may be implemented by using only one motor. The antenna transmission apparatus of the present invention is simple in structure, light in weight, stable, and easy to operate.
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