Strip transmission line
A strip transmission line, metal layer technology, applied in the directions of waveguides, circuits, electrical components, etc., can solve the problems of large loss and low machining accuracy, and achieve the effect of small loss, high machining accuracy and low cost
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Embodiment 1
[0024] refer to figure 1 , the present invention provides a strip transmission line 1 , including an insulating dielectric block 11 and a metal layer 12 . The insulating dielectric block 11 includes a bottom plate 111, a first side wall 112 disposed on one surface of the bottom plate 111, a second side wall 113, and a third side wall 114 located between the first side wall 112 and the second side wall 113. The heights of the three side walls 114 are all lower than the heights of the first side wall 112 and the second side wall 113, and at least one side of the first side wall 112, the second side wall 113, and the third side wall 114 is covered with a metal layer 12 The metal layers of the first sidewall 112 and the second sidewall 113 close to the third sidewall 114 are parallel to the metal layer of the third sidewall 114 .
[0025] In this embodiment, the inner surface of the first sidewall 112 is covered with the first metal layer 121, the inner surface of the second side...
Embodiment 2
[0032] refer to figure 2 , different from Embodiment 1, the outer surface of the first sidewall 112 is further covered with the fourth metal layer 124 , and the upper surface is covered with the fifth metal layer 125 . The outer surface of the second sidewall 113 is further covered with a sixth metal layer 126 , and the upper surface is covered with a seventh metal layer 127 . The outer surface of the third sidewall 114 is further covered with an eighth metal layer 128 , and the upper surface is covered with a ninth metal layer 129 . The third metal layer 123 and the eighth metal layer 128 are parallel to each other, and the first metal layer 121 , the second metal layer 122 and the third metal layer 123 are parallel to each other, forming a stripline structure. The fourth metal layer 124 and the sixth metal layer 126 may or may not be parallel to the first metal layer 121 , the second metal layer 122 and the third metal layer 123 . That is, the shapes of the first sidewall...
Embodiment 3
[0034] refer to image 3 , different from Embodiment 2, the other surface of the bottom plate 111 opposite to the first side wall 112 , the second side wall 113 and the third side wall 114 is further coated with an underlying metal layer 1111 . In order to further ensure grounding and reduce losses, a plurality of grounding metal devices 13 are provided on the bottom plate 111 near the outer sides of the first side wall 112 and the second side wall 113 and along the longitudinal direction of the strip transmission line 1 . Each ground metal device 13 includes a via hole 131 opened in the bottom plate 111 and a ground metal layer 132 covering the inner wall of the via hole 131. The ground metal layer 132 connects the metal layer 12 of the first side wall 112 and the second side wall 113 with the The bottom metal layer 1111 is connected so that the metal layers on the first sidewall 112 and the second sidewall 113 are connected to the bottom metal layer 1111 on the insulating di...
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