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1. (WO2018120197) ANTENNA AND COMMUNICATION DEVICE

Pub. No.:    WO/2018/120197    International Application No.:    PCT/CN2016/113898
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Sat Dec 31 00:59:59 CET 2016
IPC: H01Q 19/18
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: LUO, Yuehua
罗跃华
FAN, Jiancheng
樊建成
LI, Zhen
李珍
Title: ANTENNA AND COMMUNICATION DEVICE
Abstract:
An antenna and a communication device. The antenna comprises a feed, a secondary reflection structure, and a primary reflection structure. The feed is provided with a horn-shaped opening. The secondary reflection structure is connected to one side of the feed in which the horn-shaped opening is formed, is used for reflecting a feeding signal transmitted by the feed, and a one-dimensional ripple groove is formed in the secondary reflection structure. The primary reflection structure is provided with an arc-shaped reflection structure, and the arc-shaped reflection structure is used for reflecting a feeding signal transmitted by the secondary reflection structure. In embodiments of the present invention, by means of the feed combining a horn-shaped opening and a one-dimensional ripple groove cap, a low-bandwidth, a low-side-lobe sector beam antenna is implemented by combining an arc-shaped reflection surface. A directivity pattern of an initial feed is changed by adjusting structure parameters of the feed and the secondary reflection structure, the structure parameters comprising the shapes and the sizes the feed and the secondary reflection structure and the distance therebetween, and accordingly, the beam widths of a wide beam and a narrow beam are controlled, a high antenna gain and a feature of low side lobe are obtained, so that the antenna satisfies the universality and commercial protocol requirements of the antenna.