公开(公告)号：EP0272907A3

公开(公告)日：1989-01-18

申请号：EP87311265.0

申请日：1987-12-21

申请人： RACAL-MESL LIMITED

发明人： Arthur, John Willins ,  Gilhooley, Bernard ,  Lennon, Christopher Eric

IPC分类号： H01P1/195

CPC分类号： H01P1/195

摘要： A ferrite phase shifter is described in which the switching circuit is arranged to apply a complementary setting pulse to a latching wire (4) of a toroidal ferrite phase shifter (2) before a resetting current pulse is applied by means of a latching wire (6). A new phase state is then set by a normal setting pulse applied to the latching wire (4). The complementary setting pulse is of a voltage sufficient to bring the magnetisation state of the phase shifter to an unsaturated magnetic state. This may be achieved by applying a complementary setting pulse of a voltage which together with the voltage of the previous setting pulse adds up to a constant amount. Alternatively, the magnitude of the complementary setting voltage may be determined on an empirical basis in order to reduce the phase error in any subsequently set phase. This may result in the unsaturated magnetic state varying in dependence on the previously set state.

公开(公告)号：EP0272907A2

公开(公告)日：1988-06-29

申请号：EP87311265.0

申请日：1987-12-21

申请人： RACAL-MESL LIMITED

发明人： Arthur, John Willins ,  Gilhooley, Bernard ,  Lennon, Christopher Eric

IPC分类号： H01P1/195

CPC分类号： H01P1/195

摘要： A ferrite phase shifter is described in which the switching circuit is arranged to apply a complementary setting pulse to a latching wire (4) of a toroidal ferrite phase shifter (2) before a resetting current pulse is applied by means of a latching wire (6). A new phase state is then set by a normal setting pulse applied to the latching wire (4). The complementary setting pulse is of a voltage sufficient to bring the magnetisation state of the phase shifter to an unsaturated magnetic state. This may be achieved by applying a complementary setting pulse of a voltage which together with the voltage of the previous setting pulse adds up to a constant amount. Alternatively, the magnitude of the complementary setting voltage may be determined on an empirical basis in order to reduce the phase error in any subsequently set phase. This may result in the unsaturated magnetic state varying in dependence on the previously set state.

摘要翻译： 描述了一种铁氧体移相器，其中开关电路被布置成在通过闩锁线（6）施加复位电流脉冲之前，向环形铁氧体移相器（2）的闩锁线（4）施加互补设置脉冲 ）。 然后通过施加到闩锁线（4）的正常设置脉冲来设定新的相位状态。 互补设定脉冲具有足以使移相器的磁化状态达到不饱和磁状态的电压。 这可以通过应用与先前设定脉冲的电压一起加到一定量的电压的互补设定脉冲来实现。 或者，可以在经验基础上确定互补设定电压的幅度，以便减少任何随后设置的相位中的相位误差。 这可能导致不饱和磁状态根据先前设定的状态而变化。