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1. (CN102257675) Dual frequency antenna aperture

Office : China
Application Number: 200880132438.8 Application Date: 22.12.2008
Publication Number: 102257675 Publication Date: 23.11.2011
Grant Number: 102257675 Grant Date: 29.01.2014
Publication Kind : B
Prior PCT appl.: Application Number:PCTSE2008051553 ; Publication Number:2010074618 Click to see the data
IPC:
H01Q 21/28
H01Q 1/38
H01Q 21/30
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
21
Aerial arrays or systems
28
Combinations of substantially independent non-interacting aerial units or systems
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
1
Details of, or arrangements associated with, aerials
36
Structural form of radiating elements, e.g. cone, spiral, umbrella
38
formed by a conductive layer on an insulating support
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
21
Aerial arrays or systems
30
Combinations of separate aerial units operating in different wavebands and connected to a common feeder system
CPC:
H01Q 21/28
H01Q 9/16
H01Q 9/28
H01Q 13/08
H01Q 13/10
Applicants: SAAB公司
Inventors: 本特·斯文松
Agents: 北京集佳知识产权代理有限公司 11227
北京集佳知识产权代理有限公司 11227
Priority Data:
Title: (EN) Dual frequency antenna aperture
(ZH) 双频天线孔径
Abstract: front page image
(EN) The invention provides an antenna structure comprising at least two stacked antenna apertures, a first antenna aperture with first antenna elements and at least a second antenna aperture with second antenna elements. The antenna structure is arranged for operation in at least a high and a low frequency band. The first antenna elements are arranged for operation in the high frequency band and said second antenna elements for operation in the low frequency band. The first antenna elements are arranged to have a polarization substantially perpendicular to the polarization of the second antenna elements. The second antenna elements are arranged in at least one group and each of said group, comprises a number of second antenna elements coupled in series and arranged to have a common feeding point on a straight feeding structure. One feeding structure is located adjacent to each group of second antenna elements. The direction of the feeding structure is substantially perpendicular to the polarization of the first antenna elements. The invention also provides a corresponding method and a radar system comprising the antenna structure.
(ZH)

本发明提供了一种天线结构,该天线结构包括至少两个堆叠的天线孔径,即具有第一天线元件的第一天线孔径和至少一个具有第二天线元件的第二天线孔径。该天线结构被布置为用于工作在至少高频带和低频带中。第一天线元件被布置为用于工作在高频带中且所述第二天线元件用于工作在低频带中。第一天线元件被布置为具有与第二天线元件的偏振基本垂直的偏振。第二天线元件被布置成至少一个组,且每个组包括多个串联耦合的第二天线元件并被布置为在直馈电结构上具有公共馈电点。一个馈电结构与第二天线元件的每个组临近地设置。馈电结构的方向基本垂直于第一天线元件的偏振。本发明还提供了相应的方法和包括该天线结构的雷达系统。


Also published as:
IL212529EP2377202US20110316734IN3834/DELNP/2011ES2658816WO/2010/074618