【应用】楼氏低通滤波器L254XF3S用于TR模块,通频带DC-25.4GHz,带外抑制高至55dB
微波发射接收模块(TR模块)广泛应用于雷达、导航和卫星通信等场景。随着无线通信技术的快速发展,日益要求提高微波TR模块的性能,使之有更高的功率,更宽的频带,更高的灵敏度。TR链路中的倍频器、混频器、放大器等由于谐波泄漏、杂散辐射等会产生大量的交调产物,为在拥挤而复杂的频谱环境中让设备不被其他频段干扰,可在TR组件中使用低通滤波器。本文推荐KNOWLES(楼氏)低通滤波器L254XF3S,滤除杂波,提高抗干扰能力。下图为原理框图。
Knowles推出的薄膜低通滤波器L254XF3S采用DLI的低损耗温度稳定材料,尺寸小,性能随温度变化小,L254XF3S滤波器应用于TR模块有如下优势:
1、 频带宽,L254XF3S通频带为DC-25.4GHz,带宽25.4GHz,工作频带超宽,适用于宽带TR组件;
2、 带外抑制高,带外抑制最小40dB,最高可达55dB;
3、 易安装,焊接表面贴装封装,安装方便;
4、 温度范围广,操作和储存温度:-55℃至+125℃。
L254XF3S为Knowles推出的薄膜滤波器,频率高,频带宽,带外抑制指标好,可广泛应用于宽带TR组件、卫星通信终端、5G毫米波等各种通信设备。
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原厂动态 发布时间 : 2023-08-04
电子商城
现货市场
服务
可定制射频隔离器/环行器(10M-40GHz),双工器/三工器(30MHz/850MHz-20GHz),滤波器(DC-20GHz),功分器,同轴负载,同轴衰减器等射频器件;可定制频率覆盖DC~110GHz,功率最高20KW。
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可定制波导隔离器频率覆盖5.5GHz~110GHz,插损损低至0.25dB、隔离度、正向方向功率、封装尺寸参数。
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