The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 1987
Filed:
Aug. 14, 1984
Applicant:
Inventor:
John Magarshack, Reuil Malmaison, FR;
Assignee:
Thomson-CSF, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q / ;
U.S. Cl.
CPC ...
333103 ; 34082591 ; 379292 ;
Abstract
The invention relates to an ultra-high frequency switching matrix. Only active components, i.e. field effect transistors, are used in the integrated circuit construction of the matrix according to the invention. Coupling between an input channel and an output channel is obtained by a power divider on the input channel, which is a bi-drain transistor or a differential amplifier, a controllable switch in the form of a bi-grid transistor or two transistors in series, and a power combiner on the output channel, which is a multi-grid transistor or several transistors in series. Application is to telecommunications, particularly satellite telecommunications.