23.
    发明专利
    未知

    公开(公告)号:DE69226225D1

    公开(公告)日:1998-08-20

    申请号:DE69226225

    申请日:1992-09-17

    Applicant: RAYTHEON CO

    Abstract: A timing delay circuit (34) includes a first transistor (Q5) having a control electrode (Q5B) coupled to an input terminal (34a), a reference electrode (Q5C) coupled to a first DC bias terminal (28a) and an output electrode (Q5E) coupled to an output terminal (34b) of the timing delay circuit (34); a second transistor (Q6) having a control electrode (Q6B) coupled to the input terminal (34a), a reference electrode (Q6C) coupled to a second bias terminal (28b) and an output electrode (Q6E); and a third transistor (Q7) having a control electrode (Q7B) coupled to the output electrode (Q6E) of the second transistor (Q6), a reference electrode (Q7C) coupled to the second bias terminal (28b) and an output electrode (Q7E) coupled to the output terminal (34b) of the timing delay circuit (34). The timing delay circuit (34) is the output stage of a driver circuit (28) for a PIN diode (36) which acts as a limiter between a radar transmit/receive duplexor (14) and the radar receiver (20). Control logic signals are applied to a line circuit (24) and converted into signals of suitable voltage and current by a CCD device (26), a voltage translator circuit (30), and a current amplifier (32) before application to the input terminal (34a) of the timing delay circuit (34), which ensures rapid switching.

    28.
    发明专利
    未知

    公开(公告)号:DE69830755D1

    公开(公告)日:2005-08-04

    申请号:DE69830755

    申请日:1998-11-18

    Applicant: RAYTHEON CO

    Abstract: A forward looking sensor (310) has a transmit circuit with a transmit antenna, and a receive circuit with a receive antenna. The transmit antenna has radiating elements that generate thirteen beams (330a - 330m) spaced relative to one another by approximately 1.1° and overlapping one another by about one-half beam width. The field of view is about 15.4°, and the receive antenna has substantially the same parameters as the transmit antenna.

    29.
    发明专利
    未知

    公开(公告)号:DE69828208D1

    公开(公告)日:2005-01-20

    申请号:DE69828208

    申请日:1998-11-18

    Applicant: RAYTHEON CO

    Abstract: A forward looking sensor (310) has a transmit circuit with a transmit antenna, and a receive circuit with a receive antenna. The transmit antenna has radiating elements that generate thirteen beams (330a - 330m) spaced relative to one another by approximately 1.1° and overlapping one another by about one-half beam width. The field of view is about 15.4°, and the receive antenna has substantially the same parameters as the transmit antenna.

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