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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KC-R100B型手持式印刷对数周期天线

kcma2020/07/09 17:09:42科创仪表

KC-R100B型天线是一种印刷型对数周期天线，主要作为场强仪、频谱仪、侦察接收机的配套天线，用于场强评估、发射源侦测、无线电测向等用途。具有频率范围宽，体积适中，携带方便，结构坚固等特点，适合在室内外手持使用。

基本性能：

频率范围：380MHz…8GHz

R100B在380MHz~2.5GHz、4.5~8.0GHz频率范围内具有相对一致的增益，性能良好；在2.5~4.5GHz指标有所降低。当低于380MHz时，增益迅速降低。高于8.0GHz时，回波损耗和增益下降较为缓慢。在对指标降低要求时，可在350MHz~10GHz范围内使用。

额定增益：5dBi

在3GHz以下，R100B增益的典型值是5dBi，在较低频率增益较高，最高处（800MHz附近）可达7.6dBi。随着频率接近3GHz，增益缓慢下降到2dBi。

当频率高于3GHz时，增益围绕2dBi波动，基本稳定。但在3.5-4GHz范围内最低，应按0dBi考虑其增益。上述增益是采用原装射频电缆时的数据。

（图：KC-R100B准备接受测试）

回波损耗：10dB

天线的额定输入阻抗为50Ω，配接50欧姆发射源时，回波损耗有较大波动，多数频段在10dB附近或更优，对应的驻波系数（VSWR）约为2.0。频率低于350MHz时，驻波迅速增加。

功率容量：5W

R100B既可以作为接收天线，也可以用作发射天线。在用作发射天线时，安全的功率限值是5W。我们曾采用50W功率进行暴力测试，天线没有损坏，但不提供保证，尤其是在较高频率时不可超功率使用。在4GHz附近驻波偏大，需要注意发射机对驻波系数的要求。

方向敏感度

在对增益没有严格要求时，R100B可以用于380MHz~8.5GHz的测向。当单手拿持，随身体转动时，对发射源方向有较高的敏感度，可用于发射源的渐进寻找。在380MHz~3.5GHz、4.5GHz~6GHz范围内，无论是否有人体参与，方向性均良好，可用于交汇定位。高于6GHz时，副瓣多、窄、强，测向时应选用电平变化趋势较缓慢的主瓣。当频率位于3.5GHz~4.5GHz时，主瓣分叉，最大电平方向稍稍偏离几何方向，使用时需适当总结经验。

接口类型

SMA阳头

机械参数

外形尺寸：约560×240×25mm（不包括电缆）

电缆长度：约2.0m。其中内部馈线约0.5m，外部馈线约1.5m。

净质量：约850g

包装尺寸：约600×430×85mm

包装总质量：约1.99kg

实测参数（典型值）

驻波

对数周期天线-驻波.jpg

增益

对数周期天线-增益.jpg

300MHz方向图

400MHz

200MHz

750MHz

1GHz

2GHz方向

3GHz

4GHz

5GHz

6GHz

7GHz

8GHz

8.5GHz

9GHz

10GHz方向图

手持天线是易耗品，保修3个月。请爱护使用，不要挤压、摔碰。塑料结构关系性能，较脆，不可粗暴操作。为保障高频性能，本天线采用的电缆、连接器昂贵，请避免拖拽、过度弯折。

资料下载：

KCR100B用户手册.pdf 2.20MB PDF 179次下载预览

KCR100B_EN.pdf 2.67MB PDF 128次下载预览

生产状态：

量产，正常供应

[修改于 4 年前 - 2020/07/09 17:13:34]

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