专利汇可以提供Broad band frequency doubler and limiter utilizing magneto-resistive effect in a rotating magnetic field专利检索,专利查询,专利分析的服务。并且Apparatus for frequency doubling and limiting over a broad band of frequencies by using a magneto-resistive effect in a magnetic film. The apparatus includes a thin plate of magneto-resistive, ferromagnetic material immersed in an electronically generated rotating magnetic field. In operation, an external source provides a constant DC current through the plate. When a signal at frequency f1 is impressed at the input terminals of the coils generating the rotating magnetic field, a signal at frequency 2 f1 appears at the output terminals of the magneto-resistive element. As the frequency of the input drive signal is changed, the output signal will continuously follow the input signal but at double the frequency without the use of an output filter. The amplitude of the output signal is directly proportional to the magnitude of the impressed DC current and to the magnitude of the spatial magneto-resistance effect in the plate. At sufficiently large input levels, the amplitude of the output signal will remain constant with input signal level. The device is capable of functioning as a frequency doubler and limiter on a frequency range from sub-audio to VHF.,下面是Broad band frequency doubler and limiter utilizing magneto-resistive effect in a rotating magnetic field专利的具体信息内容。
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