MICROWAVE FILTER :
Filter which are designed at microwave frequency is called microwave filter. Microwave filter uses distributed elements . If lumped elements are used for filter design at microwave frequency ,microwave filter design becomes identical to low frequency filter design .
MICROWAVE BANDPASS FILTER
Microwaves are electromagnetic waves with wavelengths ranging from as long as one meter down to as short as one millimeter, or equivalently, with frequencies between 300MHz (0.3 GHz) and 300 GHz. This is an extremely broad definition including both UHF and EHF (millimeter waves), and various sources use different boundaries. In all cases, microwave includes the entire SHF band (3 to 30GHz, or 10 to 1cm) at minimum, with RF engineering often putting the lower boundary at 1GHz (30cm), and the upper around 100GHz (3mm).
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