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Modern and promising methods of constructing microwave attenuators and high-power loads made on planar film resistors are considered in the book. The fundamentals of the theory of construction of powerful multistage and multichannel microwave attenuators are described. It is shown that with a uniform distribution of the dissipated power across all attenuator cascades, a significant expansion of the operating frequency band is provided. Much attention is paid to microwave attenuators implemented in the form of low-pass filters with dissipative losses and non-reflective filters with ballast resistors. The proposed methods for calculating broadband microwave attenuators are based on the use of computer CAD systems that support numerical electromagnetic modeling. Examples of the constructive implementation of broadband microwave attenuators at a power level from 100 watts to 2000 watts are given. The results obtained are useful and applicable in the development of measuring equipment for radio transmitting equipment used in digital television broadcasting, communications, radio channels of telecommunication systems and radiolocation.

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