IMPROVEMENTS IN OR RELATING TO MOTION DETECTION UNITS
    91.
    发明授权
    IMPROVEMENTS IN OR RELATING TO MOTION DETECTION UNITS 失效
    的改进运动检测单位

    公开(公告)号:EP0835456B1

    公开(公告)日:1999-07-28

    申请号:EP96922119.1

    申请日:1996-06-28

    申请人: PYRONIX LIMITED

    摘要: A motion detection unit for detecting motion by means of Doppler frequency shift which comprises: a microwave circuit board (1) comprising an oscillator (14), a hybrid coupler circuit element (11) and a mixer (12); an antenna board (2) comprising at least one transmit and receive antenna (4, 5); and a ground plane layer, the two boards (1, 2) being superimposed with the ground plane layer intervening, wherein, in operation, the hybrid coupler circuit element (11) divides power from the oscillator (14), into power for the antenna transmission signal and local oscillator (LO) power to the mixer (12), and directs a received signal from the antenna (4, 5) to the mixer (12), the local oscillator (LO) power and the received signal being combined in the mixer (12) to produce a Doppler signal output.

    Single balanced frequency downconverter for direct broadcast satellite transmissions and hybrid ring signal combiner
    95.
    发明公开
    Single balanced frequency downconverter for direct broadcast satellite transmissions and hybrid ring signal combiner 失效
    用于直接广播卫星传输的单平衡频率下变频器和混合环形信号组合器

    公开(公告)号:EP0752756A2

    公开(公告)日:1997-01-08

    申请号:EP96110821.4

    申请日:1996-07-04

    IPC分类号: H03D9/06 H01P5/22

    摘要: A monolithic microwave integrated circuit (MMIC) semiconductor chip, for use with a hybrid coupler, in a frequency downconverter. The chip has a first input lead for receiving a first combined input signal from the coupler, a second input lead for receiving a second combined input signal from the coupler, and an output lead. Each input signal is a microwave signal combined with a further frequency signal, and one of the microwave and further frequency signals of the first combined signal is out of phase with one of the microwave and further frequency signals of the second combined signal. A single balanced mixer has a first single ended mixer for converting the first combined signal to a first intermediate frequency signal and a second single ended mixer for converting the second combined signal to a second intermediate frequency signal. An amplifier is coupled to the first and second mixers for forming an amplified unbalanced intermediate frequency (IF) signal at the output lead representative of the first and second intermediate frequency signals.

    摘要翻译: 单片微波集成电路(MMIC)半导体芯片,与混合耦合器一起使用,用于下变频器。 芯片具有用于接收来自耦合器的第一组合输入信号的第一输入引线,用于接收来自耦合器的第二组合输入信号的第二输入引线以及输出引线。 每个输入信号是与另外的频率信号组合的微波信号,并且第一组合信号的微波和另外的频率信号中的一个与微波中的一个和第二组合信号的另外的频率信号异相。 单个平衡混频器具有用于将第一组合信号转换为第一中频信号的第一单端混频器和用于将第二组合信号转换为第二中频信号的第二单端混频器。 放大器耦合到第一和第二混频器,用于在表示第一和第二中频信号的输出引线处形成放大的不平衡中频(IF)信号。

    Radar transmitter/receivers
    96.
    发明公开
    Radar transmitter/receivers 失效
    雷达发件人/Empfänger。

    公开(公告)号:EP0685930A1

    公开(公告)日:1995-12-06

    申请号:EP95303523.5

    申请日:1995-05-24

    IPC分类号: H03D9/06 G01S7/03

    摘要: A radar transmitter/receiver arrangement for use, for example, in automotive vehicle control in which R.F. energy from a frequency modulated oscillator is applied to an antenna for transmission and to one input of a mixer by way of a rat-race device, and RF energy reflected from a target and received at said antenna is applied to another input of the mixer by way of the said rat-race device.

    摘要翻译: 雷达发射机/接收机装置,例如用于机动车辆控制中,其中R.F. 来自频率调制振荡器的能量通过大鼠赛道装置施加到天线进行传输和混合器的一个输入,并且从目标反射的并且在所述天线处接收的RF能量被施加到混合器的另一个输入端 所述大鼠赛跑装置的方式。

    Arrangement for downconverting microwave signals
    99.
    发明公开
    Arrangement for downconverting microwave signals 失效
    安排微波信号的安排

    公开(公告)号:EP0555689A3

    公开(公告)日:1993-10-20

    申请号:EP93101190.2

    申请日:1993-01-27

    IPC分类号: H03D7/16 H03D9/06

    摘要: 2.1 It is an object of the present invention to downconvert SHF signals, especially in the 22 GHz band, by means which are already on the market and not too expensive. 2.2 According to the invention the SHF signals are double converted or a subharmonic mixer can be used. 2.3 The invention can preferably be used for 22 GHz DBS systems.

    摘要翻译: 2.1本发明的一个目的是通过已经在市场上的手段对SHF信号,特别是在22GHz频带中进行下变频,而不是太昂贵。 2.2根据本发明,SHF信号是双重转换的,或者可以使用次谐波混频器。 2.3本发明可以优选用于22GHz DBS系统。