| 摘要 |
PROBLEM TO BE SOLVED: To improve the loss of signals at a shifting part at the time of shifting into a transmission line between a microstrip line and a coaxial line. SOLUTION: In the transmission line shifting structure between the microstrip line and the coaxial line, an air gap part C5 is provided between a dielectric substrate B3 inside the microstrip line and a dielectric C3 inside the coaxial line. By adjusting the gap length x of the air gap part C5, VSWR is adjusted to a desired value and the loss of the signals at the time of shifting into the transmission line is improved. COPYRIGHT: (C)2004,JPO&NCIPI
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