BAND-REJECTION FILTER ON NON-SYMMETRIC STRIP LINE WITH USE OF LOW-PASS FILTER ELEMENTS Russian patent published in 2018 - IPC H01P1/203 H03H7/07 

FIELD: radar ranging and radio navigation.

SUBSTANCE: invention relates to microwave equipment and can be used in communication technology and in radar-location. Band-pass filter contains a strip transmission line, two parallel loops with lumped LC parameters connected in series, two tanks connected in parallel to the input of the device, having a common point of connection with the body of the device on one side of the contact. Each tank on the other side of the contact is connected to the midpoint of the inductances of each parallel LC loop individually, forming the low-pass filter links tuned to the fundamental operating frequency, while the inductance of the low-pass filter links is a tenth of the sum of the inductances forming the first parallel loop or the second parallel loop; in addition, the strip line is folded into a "meander".

EFFECT: reduction in the number of links with a reduction in the mass and dimensions of the device.

1 cl, 5 dwg