Frequency adaptive transmitter to avoid jamming
阅读：244发布：2023-06-16
专利汇可以提供Frequency adaptive transmitter to avoid jamming专利检索，专利查询，专利分析的服务。并且A frequency adaptive transmitter to avoid jamming wherein a combination of a frequency agile transmitter, a balanced amplifier and a directionally sensitive antenna senses that it is being jammed at a certain frequency and then retunes the transmitter to a frequency region free of the jamming signal.，下面是Frequency adaptive transmitter to avoid jamming专利的具体信息内容。
1. A frequency adaptive transmitter for a fuze proximity radar sensor to avoid jamming signals comprising a segmented antenna receiving signal energy and capable of detecting excessive signal level in the off-axis regions such as side lobes, said segmented antenna having multiple sections including a first section at one end and a second section at the other end, first and second couplers associated with said first and second sections, respectively, a balanced amplifier having first and second inputs, said first and second inputs being connected to said first and second couplers, respectively, said balanced amplifier having no output when the signal energy in said side lobes is normal and providing an output upon unbalance, a rectifier receiving the output of said balanced amplifier, a varactor, a resistance interconnecting said varactor and the output of said rectifier, a pulse generator, an inductance interconnecting said varactor and said pulse generator, said varactor and said inductance constituting a resonant circuit for said frequency adaptive transmitter, said resonant circuit being changed in frequency to a jam free region upon occurrence of said unbalance.
2. A frequency adaptive transmitter as described in claim 1 further including a threshold circuit interposed between said resistor and said varactor.
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