Terminal structure and a universal low noise blockdown converter using the same

DETAILED DESCRIPTION It is therefore an object of the present invention to provide an universal LNB converter and a terminal structure to be used for various appliances having a plurality of terminals such as receiver-side converters inclusive of universal LNB converters wherein a plurality of output terminals are composed of low-priced components, can be assembled at low cost in high productivity and is suitable to mass-production.
It is another object of the invention to provide a universal LNB which can be made compact, light and low-priced by narrowing the pitch between its terminals.
It is still another object of the invention to provide an economical receiver-side converter of multiple terminal type such as a universal LNB in which variation of the output voltage standing-wave ratio (VSWR) is suppressed by preventing degradation of its high-frequency characteristic due to the fluctuation of earth-potential levels in the high-frequency band range between distant terminals from each other.
The present invention has been achieved to attain the above object and the gist of the invention is as follows: A terminal structure of the invention includes: a terminal joint module having a plurality of cylindrical outer conductors each having a core conductor inside the cylinder and a plate-like attachment base on which the cylindrical outer conductors are put together, is constructed such that the outer conductors and the attachment base are integrally formed of an identical material.
Another terminal structure of the invention includes: a terminal joint module having a plurality of cylindrical, metal-made outer conductors each having a core conductor inside the cylinder and a plate-like, resin-made attachment base on which the cylindrical outer conductors are put together, and is constructed such that the outer conductors are integrally formed with the attachment base by the insert-forming process.
In the above cases, the terminal joint module with a desired number of outer conductors may be formed by cutting a terminal strip comprising continuously connected outer conductors, into a section having the required number of outer conductors