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:
Oct. 13, 1998
Filed:
Nov. 13, 1996
Moon-Pyung Park, Daejeon, KR;
Hyeon-Cheol Ki, Seongnam, KR;
Sung-Ho Park, Daejeon, KR;
Tae-Woo Lee, Daejeon, KR;
Kie-Moon Song, Seoul, KR;
Korea Telecommunication Authority, Daejeon, KR;
Electronics and Telecommunications Research Institute, Seoul, KR;
Abstract
In a wideband amplifier whose bandwidth is increased using a parallel feedback transistors(PFT), capacitive elements are connected between the first and seventh nodes which are emitters of the seventh and eighth transistors which are parallel feedback transistors, and alternating current(AC) grounds, wherein outputs are supplied from the first and seventh nodes, and the emitter follower buffers are coupled to the first and seventh nodes so that a negative feedback current is leaked through the collector parasitic capacitances of emitter follower buffer transistors. The bandwidth of the amplifier is greatly increased without making the circuit complex.