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
| Title | Year | Author | Number |
|---|---|---|---|
| HIGHLY SELECTIVE BAND-PASS TUNEABLE LC FILTER | 2011 |
|
RU2453985C1 |
| MULTIBAND TUNABLE LC BANDPASS FILTER | 2012 |
|
RU2496226C1 |
| NARROW-BAND TUNABLE LC-FILTER | 2011 |
|
RU2466494C1 |
| ELECTRICAL WAVE FILTER WITH NEUTRALISATION OF NOISES IN WORKING FREQUENCY BAND | 2007 |
|
RU2349026C2 |
| TUNABLE REJECTION LC FILTER | 2011 |
|
RU2495523C2 |
| HIGHLY SELECTIVE TUNABLE LC BANDPASS FILTER | 2012 |
|
RU2504897C1 |
| BAND-REJECTION TUNABLE LC-FILTER | 2017 |
|
RU2671042C1 |
| TUNABLE FILTER OF HARMONICS OF A RADIO TRANSMITTER | 2018 |
|
RU2695485C1 |
| REJECTION LC-FILTER | 2012 |
|
RU2520422C1 |
| ACTIVE BAND-PASS FILTER | 2016 |
|
RU2658263C2 |
