| 摘要 |
PURPOSE: A structure of a horn antenna in a radar detector is provided to detect a radar signal for grasping a speed of a vehicle and all signals for inducing the safe operation of the vehicle. CONSTITUTION: A structure of a horn antenna in a radar detector comprises an antenna portion(110), a waveguide, a septum(130), a multitude of control bolt(140), a mixer diode insertion hole(150), a laser module coupling portion(160), the first local oscillation portion(170), a window, and an FR shield portion. The antenna portion(110) is formed with an upper side face(111), a lower side face(112), a left side face(113), and a right side face(114). The waveguide is connected with the antenna portion(110). The septum(130) is formed at a center portion of an upper and a lower portion of the antenna portion(110) and the waveguide. The control bolts(140) receives an accurate frequency. The mixer diode insertion hole(150) is formed on a center line of the antenna portion(110). The laser module coupling portion(160) receives a laser signal. The first local oscillation portion(170) comprises the first local oscillator of the laser detector. The window is operated as a band pass filter. The FR shield portion shields an RF portion.
|
