ANTENNA Russian patent published in 2021 - IPC H01Q1/00 

FIELD: antenna tech.

SUBSTANCE: invention relates to ultra-wideband microwave antennas, and can be used in communication systems, in metrology and radar problems, as part of phased antenna arrays. The aim of the invention is to create an antenna: with an extended range of operating frequencies in the low-frequency region without changing the transverse and longitudinal dimensions of the aperture; with improved matching performance over the entire operating frequency range; with reduced back-radiation; with a high level of cross-polarization isolation; high gain; with antenna protection from external vibroacoustic influences. The technical result is achieved by the fact that the claimed antenna 1 contains an aperture section of an antipodal slot line (APSL) without overlap 3 and a section of APSL with zero overlap 4, placed on a dielectric substrate 2, a feeding section of a strip transmission line 5, the same aperture signal metal plate (ASMP) 7 and the aperture earth metal plate (AEMP) 8 of the aperture section of the APSL without overlap 3 are made tapering along the inner side edge 9, from the area of ​​zero overlap 10 in the direction of the area of ​​maximum aperture 11, the aperture signal metal emitting surface (ASMES) 12 and the aperture earth metal emitting surface (AEMES) 13, installed in the area of ​​the aperture section of the APSL without overlap 3, located along the inner side edges 9 of the ASMP 7 and AEMP 8 of the APSL section without overlap 3, respectively, from the area of ​​zero overlap 10 of ASMP 7 and APSL 8 towards the area of maximum aperture gap 11 of the antenna 1, ASMES 12 and AEMIS 13 in the area of ​​zero overlap 10 of the aperture section of the APSL with zero overlap 4 are galvanically connected to the ASMP 7 and AEMP 8, an additional signal metal emitting surface (ASMES) 19 and an additional earth metal emitting surface (AEMES) 20 located on the side of the outer side edge of ASMP 7 and AEMP 8 of the APSL section without overlap 4, and the end edge 21 of the ASMES 19 and AEMES 20 are connected in the area of ​​the maximum aperture 11 by the aperture bridge 22 to the end edge of ASMES 12 and AEMES 13, the signal impedance load (SIL) 24 and ground impedance load (GIL) 25 are made in the form of a planar metal plate and, through the signal contact element (SCE) 26 and the ground contact element (GCE) 27, are connected in the aperture region to ASMP 7 and AEMP 8 of the APSL segment without overlapping 4, the compensator 28 of the signal strip conductor 14 is made of two identical planar metal plates that are installed are symmetrically on one and the other side of the signal strip conductor 14 of the supply section of the strip transmission line 5, in the area of ​​its connection to the central conductor of the coaxial connector.

EFFECT: creating an antenna with an extended range of operating frequencies in the low-frequency region without changing the transverse and longitudinal dimensions of the aperture, and other advantageous characteristics.

45 cl, 43 dwg