| 摘要 |
PURPOSE:To miniaturize a matching circuit by forming matching stubs in a dielectric substrate between a strip conductor and a ground conductor substrate. CONSTITUTION:Matching stubs 4a and 4b are formed in a dielectric substrate 1 between a strip conductor 3 and a ground conductor substrate, and the stub 4a has the conductor projected from the strip conductor 3 into the dielectric substrate 1, and the stub 4b has the conductor projected from the ground conductor substrate 2 into the dielectric substrate 1. Recessed parts of desired size and depth are formed from the side of the strip conductor 3 and the side of the ground conductor substrate 2 by a twist drill or the like and a metal is vapor-deposited in these recessed parts to form stubs 4a and 4b. Thus, a matching circuit element consisting of stubs and capacitors does not occupy a wide area. |
