摘要:
A feed line structure (1), especially integrated with a stationary array of antenna elements so as to enable adjustment of the direction of the beam radiated from the array. The feed line structure comprises a feed conductor line pattern (3) disposed on a fixed carrier plate (2) at a distance from and in parallel to a fixed ground plate (4), and a movable dielectric plate (5) located therebetween. The feed line pattern (3) is elongated in the same direction (A) as the movement direction of the dielectric plate (5). The propagation velocity of the signal components is reduced by the dielectric plate (5), whereby a controlled phase difference between the various signal components is obtained.
摘要:
A dummy which is constructed to register blows inflicted thereon, wherein the dummy includes one or more sensors at the location or those locations on the dummy where a blow or blows delivered thereto shall be registered, and wherein the sensor or sensors is/are adapted to deliver an electric signal to a computer. The sensor (3, 13, 14) includes a pressure sensor (5) which is adapted to deliver an electric signal which corresponds to the pressure generated in the pressure sensor in response to a blow landing on said sensor; and in that the surface of the sensor (3, 13, 14) parallel with the dummy surface on which the sensor is attached is divided into two or more sections (4), where each section (4) is adapted to deliver an electric signal when the blow lands on the section concerned.