| 摘要 |
PURPOSE:To improve the yield of a composite microwave circuit module and the degree of freedom for its production with respect to an element separation type composite microwave circuit module formed by integrating an active element and a passive element constituting a microwave band circuit on the same substrate. CONSTITUTION:This composite microwave circuit module 1 consists of a base substrate 2, element substrates 3 to 7 and a base plate 8. Recessed parts 2a to 2e are formed on the substrate 2 by hollowing out a substrate material upper than an intermediate layer in accordance with the contours of resective substrates 3 to 7. The substrates 3 to 7 are respectively engaged with the recessed parts 2a to 2e and electrically connected with them through bonding wires. The substrates 3 to 6 have block-like shapes with absolute minimum size, each of the substrates 4 to 6 mounts a filter constituted of a strip line or the like and a passive element such as a directional coupler on its intermediate layer and each of the substrae 3, 7 mounts an active element such as a transistor and a diode on its intermediate layer. |
