| 摘要 |
PURPOSE:To increase the mounting density of microwave components on one dielectric base by providing a triplate line in the broadwise direction of the dielectric base, constituting a branch line coupler with a microwave circuit and fitting directly a connector comprising a coaxial line to an exit of the triplate line being an input/output terminal. CONSTITUTION:A metallic plate 12 fixed dielectric bases 1a, 1b, 1c, 1d and a connector 8. The branch line coupler consists of the triplate lines 4b and 4c having different characteristic impedances, the respective characteristic impedances are formed by 50OMEGA and 30.4OMEGA as a conventional coupler and each electric length is lambdag/4. Thus, a microwave power inputted from, e.g., a P1 in this branch line coupler is distributed equally and output powers P3, P4 are obtained. Further, a P2 is an isolation terminal and no microwave is propagated therefrom. The mounting density of microwave components is one dielectric base is increased and the degree of freedom of arrangement is increased by using the branch line coupler of the microwave circuit in this way.
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