IEC 61338-2:2004-05（en fr）包含使用指南，仅限于用于振荡器和滤波器应用的波导型介质谐振器。这些应用包括用于直接广播或通信卫星系统的振荡器、用于无线电链路的振荡器、用于移动通信系统的压控振荡器等。本标准取消并取代2000年发布的IEC PAS 61338-2。第一版为技术修订版。

IEC 61338-2:2004-05(en-fr) contains guidelines for use, is limited to the waveguide type dielectric resonators that are used for oscillator and filter applications. The applications are oscillators for direct broadcasting or communication satellite systems, oscillators for radio links, voltage-controlled oscillators for mobile communication systems and so on. This standard cancels and replaces IEC PAS 61338-2 published in 2000. This first edition constitutes a technical revision.