Reciprocal ferrite phase shifter having means detecting deviations of the energy from desired linear polarization专利检索-四极管电子零件及设备专利检索查询-专利查询网

Reciprocal ferrite phase shifter having means detecting deviations of the energy from desired linear polarization

阅读：375发布：2021-12-27

专利汇可以提供Reciprocal ferrite phase shifter having means detecting deviations of the energy from desired linear polarization专利检索，专利查询，专利分析的服务。并且A ferrite phase shifter having a pair of nonreciprocal circular polarizers with a nonreciprocal phase shifter between them, including an electronic control for altering the magnetization of the nonreciprocal circular polarizers. This arrangement may be used to compensate for temperature and power changes and may provide a bandwidth substantially equal to the theoretical for a ferrite loaded waveguide of the same configuration. In the preferred embodiment the waveguide is square, the nonreciprocal circular polarizer (NRCP) is of the transversely magnetized quadrupole field type, and electronically controllable electromagnets at each corner of the NRCP sections provide the required level of magnetization to maintain accurate 90* phase shift of orthogonal vector components of the propagating electromagnetic wave. Also in the preferred embodiment, a linear polarizer at one end of the phase shifter includes a resistive film, and a detector diode is attached to the film to detect deviations of the propagating wave from the desired linear polarization. The detector diode is a part of a control circuit which adjusts the NRCP control magnet settings.，下面是Reciprocal ferrite phase shifter having means detecting deviations of the energy from desired linear polarization专利的具体信息内容。

权利要求

1. In a phase shifting means for use in an electromagnetic wave system comprising waveguide means, circular polarizer means including first ferrimagnetic means in said waveguide means for converting applied linearly polarized electromagnetic wave energy into substantially circularly polarized wave Energy, and phase shifter means including second ferrimagnetic means in said waveguide means and controllable means for magnetizing said second ferrimagnetic means axially of said waveguide means for effecting a controllable phase shift of said circularly polarized wave energy, the improvement comprising control means for controlling the magnetization of said first ferrimagnetic means, and circuit means for energizing said control means, said circuit means comprising variable means for changing said magnetization of said first ferrimagnetic means in response to a change in a condition tending to degrade said conversion from linear to circular polarization.

2. The improvement of claim 1 wherein said circular polarizer means comprise a transversely magnetized quadrupole field nonreciprocal circular polarizer.

3. The improvement of claim 2 wherein said variable means comprise preprogrammed means responsive to a change from one preselected wave energy frequency to another preselected wave energy frequency.

4. The improvement of claim 2 wherein said variable means are temperature responsive.

5. The improvement of claim 2 wherein said variable means comprise sensor means in said waveguide means for sensing divergence from a desired polarization of said wave energy.

6. The improvement of claim 5 including a linear polarizer on the side of said circular polarizer means away from said phase shifter means, said linear polarizer comprising absorptive means for absorbing wave energy polarized normal to a desired plane of polarization, said sensor means comprising means operatively connected to said absorptive means.

7. The improvement of claim 6 wherein said absorptive means comprise a resistive film and said sensor means comprise a diode in contact with said film.

8. The improvement of claim 2 wherein the waveguide is square in cross section.

9. The improvement of claim 2 wherein said first and second ferrimagnetic means comprise a single rod.

10. The improvement of claim 1 including second circular polarizer means including third ferrimagnetic means in said waveguide means for converting said phase shifted circularly polarized wave energy to linearly polarized wave energy, said phase shifter means being disposed between said first and second circular polarizer means.

11. The improvement of claim 10 wherein said first and second circular polarizer means comprise transversely magnetized quadrupole field nonreciprocal circular polarizers.

12. The improvement of claim 11 wherein said control means control the magnetization of both said first and third ferrimagnetic means.

13. The improvement of claim 12 wherein said variable means comprise sensor means in said waveguide means for sensing divergence from a desired polarization of said wave energy.

14. The improvement of claim 13 including a linear polarizer on the output side of said second circular polarizer means, said linear polarizer comprising absorptive means for absorbing wave energy polarized normal to a desired plane of polarization, said sensor means comprising means operatively connected to said absorptive means.

15. The improvement of claim 11 wherein said first, second and third ferrimagnetic means comprise a single rod.

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Reciprocal ferrite phase shifter having means detecting deviations of the energy from desired linear polarization

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