公开(公告)号：US20140354498A1

公开(公告)日：2014-12-04

申请号：US14369684

申请日：2012-12-28

Applicant: SELEX ES S.p.A.

Inventor： Massimo Balma ,  Giacomo Guarnieri ,  Giuseppe Mauriello ,  Erasmo RECAMI ,  Michel Zamboni Rached

IPC: H01Q13/18 ,  H01Q21/00

CPC classification number: H01Q13/18 ,  H01Q21/0006 ,  H01Q21/0012

Abstract: A radial slot antenna (1; 60) comprising a radial waveguide, which includes an upper plate (5), having a centroid (O) and an edge region (14) and provided with a plurality of radiating apertures (4), formed as slots in the upper plate (5), which develop according to an ideal annular pattern (16) around the centroid (O). The radiating apertures (4) are arranged in such a way as to form at least one first radiating region (31a) and one second radiating region (31b), which are distinct and radially separated by a dwell region (33a) without radiating apertures and wherein, in the first and second radiating regions (31a, 31b), radially adjacent radiating apertures (4) are separated from one another by a respective mutual radial distance, the dwell region (33a) having a radial width (δ) greater than the mutual radial distances of the radiating apertures (4) in the first and second radiating regions (31a, 31b). The slot antenna further comprises a signal feeder (10) operable for supplying am electromagnetic field (Ψ0, Ψ1) so as to assume, in the first and second radiating regions, opposite phases, in such a way that the electromagnetic field emitted by the slot antenna can be expressed via Bessel functions.

Abstract translation: 包括径向波导的径向槽天线（1; 60），其包括具有质心（O）和边缘区域（14）的上板（5），并且设置有多个辐射孔（4），形成为 上板（5）中的槽，其根据围绕质心（O）的理想环形图案（16）而形成。 辐射孔（4）以这样的方式设置，以便形成至少一个第一辐射区域（31a）和一个第二辐射区域（31b），该第一辐射区域（31a）和一个第二辐射区域（31b）由驻留区域（33a）不同而径向分开， 其特征在于，在所述第一和第二辐射区域（31a，31b）中，径向相邻的辐射孔（4）彼此相互径向距离彼此分开，所述停留区域（33a）的径向宽度（δ）大于 辐射孔（4）在第一和第二辐射区域（31a，31b）中的相互径向距离。 缝隙天线还包括信号馈送器（10），可操作用于提供电磁场（Ψ0，Ψ1），以便在第一和第二辐射区域中呈现相反的相位，使得由时隙发射的电磁场 天线可以通过贝塞尔函数表达。

公开(公告)号：US09673533B2

公开(公告)日：2017-06-06

申请号：US14369684

申请日：2012-12-28

Applicant: SELEX ES S.p.A.

Inventor： Massimo Balma ,  Giacomo Guarnieri ,  Giuseppe Mauriello ,  Erasmo Recami ,  Michel Zamboni Rached ,  Angelo Freni ,  Agnese Mazzinghi ,  Matteo Albani

IPC: H01Q13/10 ,  H01Q13/18 ,  H01Q21/00

CPC classification number: H01Q13/18 ,  H01Q21/0006 ,  H01Q21/0012

Abstract: A radial slot antenna comprising a radial waveguide, which includes an upper plate, having a centroid and an edge region and provided with a plurality of radiating apertures, formed as slots in the upper plate, which develop around the centroid. The radiating apertures are arranged to form first and second radiating regions, which are distinct and radially separated by a dwell region without radiating apertures and wherein, in the first and second radiating regions, radially adjacent radiating apertures are separated from one another by a radial distance, the dwell region having a radial width greater than the radial distances of the radiating apertures in the first and second radiating regions. The slot antenna further comprises a signal feeder for supplying am electromagnetic field to assume, in the first and second radiating regions, opposite phases, so that the electromagnetic field emitted by the slot antenna can be expressed via Bessel functions.