CPC Subgroup
H01P 1/201 Filters for transverse electromagnetic waves (H01P1/212, H01P1/213, H01P1/215, H01P1/219 take precedence)
Full Title
Auxiliary devices (coupling devices of the waveguide type H01P5/00) > Frequency-selective devices, e.g. filters > Filters for transverse electromagnetic waves (H01P1/212, H01P1/213, H01P1/215, H01P1/219 take precedence)
5 direct subcodes
Child Classifications
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- H01P 1/202 Coaxial filters (cascaded coaxial cavities H01P1/205)
- H01P 1/203 Strip line filters
- H01P 1/205 Comb or interdigital filters; Cascaded coaxial cavities (H01P1/203 takes precedence)