Keysight 11970W 波导混频器是一款通用谐波混频器，采用双二极管设计，可实现平坦的频率响应和低变频损耗。它无需使用外部直流偏置或调谐分支，便可达到上述指标。由于不需要进行混频器配置和调谐调整，11970W 简化了手动操作和计算机控制硬件操作。
11970W 将 Keysight N9030A PXA 高性能信号分析仪的频率范围扩展到了 W 频段（75 至 110 GHz）。它完全兼容其他是德频谱分析仪，包括：E4440A/46A/48A PSA（配有选件 AYZ）、E4407B ESA-E（配有选件 AYZ）、856xEC、8566B（配有前置放大器）和 7000 模块化分析仪（配有 70907A/B 外部混频器接口模块）。
The Keysight 11970W waveguide mixer is a general-purpose harmonic mixer employing a dual-diode design to achieve flat frequency response and low conversion loss. These are achieved without external dc bias or tuning stubs. Manual operation and computer-controlled hardware operation are simplified because mixer bias and tuning adjustment are not required.
The 11970W extends the frequency range of the Keysight N9030A PXA high-performance signal analyzer to the W-band (75 to 110 GHz). It is also fully compatible with other Keysight spectrum analyzers including: the E4440A/46A/48A PSA (with Option AYZ), the E4407B ESA-E (with Option AYZ), the 856xEC, the 8566B (with a preamplifier), and the 7000 modular analyzer (with the 70907A/B external mixer interface module).
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