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    • 1. 发明申请
    • PASSIVE AIRBORNE COLLISION WARNING DEVICE AND METHOD
    • 被动空中碰撞警告装置和方法
    • WO2005010553A1
    • 2005-02-03
    • PCT/IB2004/051255
    • 2004-07-19
    • NAVAERO ABRIDDERHEIM, StefanLINDMARK, Björn
    • RIDDERHEIM, StefanLINDMARK, Björn
    • G01S13/93
    • G08G5/045G01S5/12G01S13/781G01S13/9303G01S19/42G08G5/0078
    • A passive airborne mounted collision warning system suitable for light aircraft that enables an observer aircraft to determine the position of a nearby transponder-equipped target aircraft. The transponder-equipped target aircraft transmits replies responsive to interrogation signals from rotating secondary surveillance radars (SSR). In an embodiment of the invention, position of the target aircraft is determined based on the known position of the observer aircraft obtained e.g. via satellite navigation means such as GPS, the position of the SSR, and the bearing of the target aircraft measured by a direction finding antenna. The direction-finding antenna elements and the GPS receiver components are included in a device that is externally mounted on the observer aircraft. The data from the device is connected to a portable computer for processing and presentation to the pilot to alert him of the position of the target aircraft for avoiding collisions.
    • 一种适用于轻型飞机的被动机载碰撞警告系统,使观察员飞机能够确定附近的应答器配备的目标飞机的位置。 应答器装备的目标飞机响应于来自旋转次级监视雷达(SSR)的询问信号发送应答。 在本发明的一个实施例中,目标飞机的位置是基于所获得的观察员飞行器的已知位置来确定的。 通过诸如GPS的卫星导航装置,SSR的位置以及由寻向天线测量的目标飞机的方位。 测向天线元件和GPS接收器组件被包括在外部安装在观察飞机上的设备中。 来自设备的数据被连接到便携式计算机,用于处理和呈现给飞行员以提醒他目标飞机的位置以避免碰撞。
    • 2. 发明申请
    • ANTENNA FEEDING ARRANGEMENT
    • 天线输送装置
    • WO2009108097A1
    • 2009-09-03
    • PCT/SE2009/000009
    • 2009-01-14
    • POWERWAVE TECHNOLOGIES SWEDEN ABLINDMARK, BjörnHU, AnnikaUDDIN, Jesper
    • LINDMARK, BjörnHU, AnnikaUDDIN, Jesper
    • H01Q9/04
    • H01Q9/0457H01Q9/0428
    • There is disclosed an antenna element, including at least one antenna patch and a feeding arrangement which comprises: a ground plane including: a first aperture slot and a second aperture slot, where said aperture slots cross each other perpendicularly; a feeding plane including: a first antenna port for feeding microwave energy via a first feeding junction into a first pair of feed lines which extend in parallel along said first aperture slot, on each side thereof; a second antenna port for feeding microwave energy via a second feeding junction into a second pair of feed lines which extend in parallel along said second aperture slot, on each side thereof; and where said feed lines cross each other in at least one point, at a mutual distance. Said feeding arrangement is furthermore irregularly configured for compensating for an imbalance caused by said crossing of said feed lines.
    • 公开了一种天线元件,包括至少一个天线贴片和馈电装置,其包括:接地平面,包括:第一孔隙和第二孔隙,其中所述孔隙垂直于彼此交叉; 馈电平面,包括:第一天线端口,用于经由第一馈电结点将微波能量馈送到沿着所述第一孔隙平行延伸的第一对馈线; 第二天线端口,用于经由第二馈电结点将微波能量馈送到在其每侧上沿所述第二孔隙平行延伸的第二对馈线; 并且其中所述馈送线在至少一个点处以相互距离彼此交叉。 所述进给装置还不规则地构造成用于补偿由所述进给线的所述穿过引起的不平衡。
    • 7. 发明申请
    • DUAL BAND ANTENNA ARRANGEMENT
    • 双带天线布置
    • WO2007136333A1
    • 2007-11-29
    • PCT/SE2007/000497
    • 2007-05-22
    • POWERWAVE TECHNOLOGIES SWEDEN ABLINDMARK, BjörnUDDIN, Jesper
    • LINDMARK, BjörnUDDIN, Jesper
    • H01Q21/08
    • H01Q21/061H01Q1/246H01Q5/42H01Q21/062
    • The present invention relates to an antenna arrangement comprising a first and third set of antenna elements, being arranged as a first and third column and aligned along a first and third symmetry axis, respectively, each column comprising elements being operative in a first frequency band (fl) and elements being operative in a second frequency band (f2) . The antenna arrangement further comprises a second set of antenna elements, being arranged as a second intermediate column along a second symmetry axis, said second symmetry axis being parallel to said first and third symmetry axes, and being operative in said second frequency band (f2) , wherein the ratio of said second centre frequency (f2) to said first centre frequency (fl) is in the range 1.5 to 3. The distance between said first and third symmetry axes is less than or equal to 0 .6 times the wavelength of said first centre frequency (fl) , and the distance between said second and said first and third symmetry axis, respectively, is less than or equal to 0.6 times the wavelength of said second centre frequency (f2).
    • 本发明涉及一种包括第一和第三组天线元件的天线装置,其被布置为第一和第三列,并且分别沿着第一和第三对称轴对准,每列包括在第一频带中操作的元件( 并且元件在第二频带(f2)中操作。 所述天线装置还包括第二组天线元件,沿着第二对称轴线被布置为第二中间列,所述第二对称轴线平行于所述第一和第三对称轴线,并且在所述第二频带(f2)中工作, ,其中所述第二中心频率(f2)与所述第一中心频率(f1)的比率在1.5至3的范围内。所述第一和第三对称轴之间的距离小于或等于 所述第一中心频率(f1)和所述第二和第三对称轴之间的距离分别小于或等于所述第二中心频率(f2)的波长的0.6倍。