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{{Short description, Waveguide component
The flap attenuator or resistive-card attenuator is a flap-type
EC8701 Antenna and Microwave Engineering
/ref> The attenuation can be typically up to 30 decibels. In the millimeter wave range, it's possible to achieve up to 40 dB. The attenuation is frequency-dependent, resulting in less attenuation of harmonics for complex signals.Igor Ya. Belyaev
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in Bioelectromagnetics 18:529–530 (1997)
The flap attenuator or resistive-card attenuator is a flap-type waveguide
A waveguide is a structure that guides waves by restricting the transmission of energy to one direction. Common types of waveguides include acoustic waveguides which direct sound, optical waveguides which direct light, and radio-frequency w ...
attenuator that allows for precise and continuous attenuation of electromagnetic waves traveling through a rectangle waveguide.
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. A shape with as few sharp edges as possible is considered to minimize reflections. As a rule, semicircular, thin panes are preferred.Department of ECE, Rohini College of Engineering & TechnologEC8701 Antenna and Microwave Engineering
/ref> The attenuation can be typically up to 30 decibels. In the millimeter wave range, it's possible to achieve up to 40 dB. The attenuation is frequency-dependent, resulting in less attenuation of harmonics for complex signals.Igor Ya. Belyaev
Reply to comments
in Bioelectromagnetics 18:529–530 (1997)
References