COMPACT BEACON RADAR AND FULL ATC SERVICES SYSTEM
    2.
    发明公开
    COMPACT BEACON RADAR AND FULL ATC SERVICES SYSTEM 审中-公开
    紧凑型雷达信标和SYSTEM FOR FULL空管服务

    公开(公告)号:EP2347626A1

    公开(公告)日:2011-07-27

    申请号:EP09840567.3

    申请日:2009-09-29

    发明人: PERL, Elyahu

    IPC分类号: H04W72/00

    摘要: A system and method for a single site beacon transceiver including an omnidirectional transceiver, a plurality of directional receiving antennas for receiving a signal, and a digital receiver for processing the signal to determine an azimuth to the source of the received signal. The digital receiver includes a plurality of receiver channels that are calibrated periodically and at least one processor that estimates a coarse signal azimuth for the signal by calculating an amplitude monopulse ratio for the signal using the two directional receiving antennas receiving the highest amplitude signal, and estimates a final signal azimuth for the signal using an interferometer baseline between the two directional receiving antennas or, alternately, subtracts the complex ratio of the measurements from the complex ratio of the antenna array RF model to determine the angle corresponding to the minimum of the absolute value of the difference.

    AN ANTENNA
    4.
    发明公开
    AN ANTENNA 审中-公开

    公开(公告)号:EP3340376A1

    公开(公告)日:2018-06-27

    申请号:EP17207142.5

    申请日:2017-12-13

    摘要: An antenna for a communication device, and also an RFID reader incorporating the said antenna, are disclosed. The antenna has a structure comprising a ground portion and a radiating component. The radiating component has a first side, and a second side that is spaced apart from the first side. The first side has a ground edge portion which is in contact with the ground portion, and the first side extends, from its ground edge portion, away from a surface on one side of the ground portion. The second side also has a ground edge portion which is in contact with the ground portion, and the second side also extends, from its ground edge portion, away from a surface on said one side of the ground portion. The radiating component also has a joining portion which is spaced apart from the ground portion on said one side of the ground portion, and the joining portion extends between the first side and the second side, such that there is a region of space defined between the first side and the second side and between the joining portion and the ground portion. At least one of the first side and the second side has a slot therein.

    Full aperture interleaved space duplexed beamshaped microstrip antenna system
    7.
    发明公开
    Full aperture interleaved space duplexed beamshaped microstrip antenna system 失效
    Volle光圈ausnutzendes,verschachteltes Streifenleiter-Duplexantennensystem mitStrahlenbündelung。

    公开(公告)号:EP0624918A1

    公开(公告)日:1994-11-17

    申请号:EP93118810.6

    申请日:1993-11-23

    IPC分类号: H01Q25/00 H01Q1/52

    CPC分类号: H01Q25/004 H01Q1/525

    摘要: Antenna system wherein the separate transmit and receive microstrip antennas each has respective arrays of radiating patch elements. Each of the antennas is fed from a single end thereof so that each antenna creates four beams. Beam pitch angles are introduced into each antenna so as to reduce the coupling between adjacent lines to allow the gap within each connected line pair to be reduced. This gap reduction provides room for the antennas to be interleaved within a common rectangular aperture so that the separate feeds are at opposite ends of the aperture. Each antenna then utilizes the entire aperture. Isolation means are provided between the lines of the transmit and receive antennas so as to reduce the mutual coupling therebetween and maintain the minimum required sixty dB isolation.

    摘要翻译: 用于飞机的多普勒雷达导航系统的平面微带天线系统具有每个具有两个阵列组的发射和接收天线,每个阵列组包括平行于限定方向的串联互连的辐射矩形补片元件的几条平行线。 两个阵列组的线是交错和互连的。 发射天线馈线从每条线的第一端馈送阵列组,以产生一对向前和向后的光束。 天线被交织,使得在发射天线的相邻连接的线对之间存在接收天线的连接的一对线路。 天线馈线与天线线的第一端相邻。 隔离器位于发射和接收天线的线之间,以减少它们之间的相互耦合。