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:
Dec. 23, 1986
Filed:
Apr. 26, 1984
John Magarshack, Rueil Malmaison, FR;
Dimitri Pavlidis, Paris, FR;
Thomson-CSF, Paris, FR;
Abstract
The invention provides a high gain ultra high frequency amplifier with high output power and low phase shift. This amplifier, whose organization is arborescent, comprises a plurality of series amplification stages (1st to 5th), each stage comprising a plurality of elementary cells. Each cell has only one input but at least two outputs. A cell is, for example, a field effect transistor, with input at the gate and outputs at two drains. The input of the first transistor forms the input of the amplifier. A metalization which joins together all the outputs of the transistors of the last stage forms the output of the amplifier. The transistors are input and output matched by means of microstrip lines, capacities and inductances. The monolithic implantation of this amplifier may, among other things, be provided concentrically about the input transistor or linearly with the transistors of the last stage on one line and those of all the other stages on another line.