Low-coupling microstrip feed ultra-wideband notch antenna

The utility model discloses a low-coupling microstrip feed ultra-wideband notch antenna. The distance between the lower edge of a first type U-shaped parasitic band and the upper edge of a second typeU-shaped parasitic band is 3.5 mm. The distance between the lower edge of the third U-shaped parasitic band and the upper edge of the fourth U-shaped parasitic band is 0.9 mm; the length of the firsttype U-shaped parasitic band connecting arm is 6.1 mm; the length of the second type U-shaped parasitic band connecting arm is 6.5 mm; the length of a third type U-shaped parasitic band connecting arm is 6.5 mm; the length of the fourth U-shaped parasitic band connecting arm is 6.6 mm so as to solve the problem that strong coupling exists among the trapped wave structures of the trapped wave antenna in the prior art. 本实用新型公开了一种低耦合微带馈电超宽带陷波天线，第一类U形寄生带下部边缘与第二类U形寄生带上部边缘的间距为3.5mm；第三类U形寄生带下部边缘与第四类U形寄生带上部边缘间距为0.9mm；第一类U形寄生带连接臂长度为6.1mm；第二类U形寄生带连接臂长度为6.5mm；第三类U形寄生带连接臂长度为6.5mm；第四类U形寄生带连接臂长度为6.6mm以解决现有技术的陷波天线的各陷波结构间会存在强烈耦合的问题。