科创仪表

科创研究院仪表研究所官方网站

投稿

订阅

订阅数

获赞数

91

阅读数

245.3万

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KC9605系列工程用低噪声放大器

kcma2022/11/03 15:26:48科创仪表 IP:四川

KC9605是馈线供电的高IP3低噪声前置放大器，主要用于共用接收天线的前置放大。覆盖频率范围列于下表：

序号	型号	频率下限	频率上限	增益	NF	压缩点	备注
01	KC9605	1MHz	1GHz	22	1.5	27	量产
02	KC9605B	50MHz	10GHz	22	1.5	22	量产
03	KC9605C	5GHz	17GHz	16	2.0	14	预发布

KC9605具备IP67级防水性能，当采用适当的防水连接器时，可以直接暴露于户外场合，并通过馈线供电。它适用于在天线附近对接收信号进行前置放大，可有效降低接收系统噪声电平。

KC9605有较高的IIP3，能抵御一般环境电磁干扰。使用时需避免在接收天线附近安装发射天线，必要时采用前置滤波器。

KC9605具有适当的增益。对于天线放大等用途，过高的增益会严重恶化系统的抗阻塞性能。通常放大器增益应按照馈线损耗+接收机噪声系数+6dB选择较为适宜，KC9605的增益设计恰好满足大多数应用场景。请注意KC9605是隔直的，不能级联供电。如果特殊情况确需更高增益，应在偏直器之后（输出端）另加放大器，可选择KC9601系列。

KC9605必须和适当的偏直器配合使用才能实现馈线供电。推荐的偏直器是KC9480。KC9605也有一个供焊接电源线的端子，当不需要馈线供电时，可通过电源端子供电。

以下是KC9605（1MHz~1GHz）的测试数据。测试数据是随机抽测的典型情况，实际产品可能稍有不同，应适当降额设计。

增益最大点出现在6.3MHz附近，约24.8dB。从100MHz到1GHz，增益波动约2dB。光标6对应1.3GHz。

1GHz处的1dB压缩点，约为28.3dBm

饱和功率约为28.6dBm

噪声系数约为1.5dB（黄线）。

[修改于 2 年前 - 2022/12/08 01:49:00]

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主体信息

主体类型：个人

所属领域：无

认证方式：手机号

IP归属地：未同步

文章分类

网络分析仪

无线电侦察

KC908射频分析仪

功率电平测量

KC9531功率传感器

KC9532功率传感器

防务无线电

天线和电缆

核辐射监测

小信号放大器

信号源模块

KC1050训练信标

KC9650系列微波源

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