| 摘要 |
<p>The invention relates to a transition between stripline transmission lines that is efficient at microwave frequencies and readily fabricated, and which may be used to achieve cross-overs in stripline circuits. The transition includes a coaxial section formed between pads (20-22) at the ends of the stripline conductors (C1,C2). The coaxial section is formed by a resilient center conductor (23,24) surrounded by an incomplete circle of pins (25) connected to the ground planes (G1-G4) and forming the outer conductor. In another form an incomplete conductive cylinder with parallel tabs extending from it at both ends is used instead of the circle of pins. The connections to the pads enter the ends of the coaxial section at the azimuth of the gap in the cylinder or circle of pins. Good high frequency performance despite the discontinuity between the pads and coaxial center conductor is achieved by increasing the characteristic impedance of the coaxial section and that of the stripline near the transition relative to the characteristic impedance of the stripline remote from the transition.</p> |
