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Line 9: It comprises a thin, disk-shaped attenuation material that extends through a longitudinal slot in the middle of the wider side of the waveguide into the inner space of the waveguide. The extent of the insertion is variable, and the attenuation can be made approximately linear with the insertion by properly shaping the resistance card. The attenuation can be typically up to 30 decibels.<ref>Department of ECE, Rohini College of Engineering & Technology [https://rcet.org.in/uploads/academics/rohini_26697761285.pdf EC8701 Antenna and Microwave Engineering]</ref> In the [[Extremely high frequency\|millimeter wave range]], it's possible to achieve up to 40 dB. <ref>[https://www.worldradiohistory.com/Archive-Catalogs/Suppliers/ABC/Amperex%20%20Catalog%20%20Microwave%20tubes%20%20%20%20%2012%20pages.pdf Amperex Catalog Microwave tubes]</ref> ~~The attenuation can be up to 20 decibels.<ref>Hewlett Packard [https://nscainc.com/wp-content/uploads/pdf/A_394A.pdf Datasheet for HP-Series 375 attenuators]</ref>~~ == References ==

Flap attenuator: Difference between revisions