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September 2007 [Components] Design Cross-Coupled Absorptive Filters Microwave filters conventionally reflect electromagnetic (EM) waves from the load back to the source. In some cases, however, it is desirable to separate the reflected wave from the input, to protect the source from excessive power levels, for example. For this reason, absorptive filters have been developed to minimize reflections.1 Figure 1 shows the basic configuration of an absorptive filter. This... |
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