FIELD: radio engineering.
SUBSTANCE: band-pass LC-filter includes the first and the second low-pass filters, the first and the second group of inductance coils, high-pass filter, amplifier, electronic switches and discrete capacitors of variable capacity.
EFFECT: improving operating characteristics of the device, increasing the width of rejection band, increasing the attenuation level in stop band, enlarging the service frequency band and reducing KCB (standing-wave ratio).
1 dwg
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|---|---|---|---|
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|
RU2453985C1 |
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|
RU2695485C1 |
