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:
Mar. 03, 2009
Filed:
Apr. 30, 2004
Applicant:
Stanimir Kamenopolski, Sofia, BG;
Inventor:
Stanimir Kamenopolski, Sofia, BG;
Assignee:
Raysat Cyprus Ltd., Nicosia, CY;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Digital phase shifter, comprising series connection of controlled phase shifting bits (-), each of them inserts determinate amount of phase delay of the passing signal, wherein the phase change occur in response to the control signal switching the phase cellsand applied to its steering terminalfor a switching element () of each of the cellscharacterized in applying as a switching element () the discrete p-HEMT (pseudomorphic high electron mobility transistors) with positive or negative pinch-off voltage.