The invention provides a multi-band
broadband tapered slot-line antenna. The multi-band
broadband tapered slot-line antenna is used for solving the technical problems that the requirements for the high
gain and the
broadband of an antenna in antenna applications of
remote sensing, detection, communication,
radar, a testing and simulating
system and the like can not be met. According to the multi-band broadband tapered slot-line antenna, a high-band center antenna part of a slot
line structure and a low-band periphery antenna part of a dual-slot-
line radiation structure form a whole, and therefore the
band width of the antenna is increased. The invention further provides an orthorhombic dual-polarization broadband tapered slot-line antenna. The two multi-band broadband tapered slot-line antennas are subjected to orthogonal
collocation with the method that grooves are formed in the axes of the dual-slot-
line radiation structures, limitation caused by the thickness of a
dielectric substrate when a single-slot-line transmission section slot-line antenna is subjected to dual-polarization design is avoided, the influence of the small distance between two polarization single-slot-line transmission sections on the
radiation characteristic of the antenna is avoided, and the technical problems that the requirements of the high
gain, the broadband and dual polarization of the antenna in antenna applications of
remote sensing, detection, communication,
radar, the
simulation testing
system and the like can not be met are solved.