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:
May. 21, 2013
Filed:
Nov. 29, 2006
Tadashi Maeda, Tokyo, JP;
Tomoyuki Yamase, Tokyo, JP;
Tadashi Maeda, Tokyo, JP;
Tomoyuki Yamase, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A non-linear effect of a rectifier element is enhanced, an input amplitude is increased by further taking advantage of a resonance circuit, and a rectification efficiency of a rectifier circuit for detection is improved, so that the gain of an amplifier circuit at a latter stage can be set low. RF input terminalsare applied with signals at phases opposite to each other. A signal at terminalis applied to a gate of transistor Mthrough capacitor C, and a signal at terminalis applied to node Nconnected with a source of transistor Mand a gate and a drain of transistor Mthrough capacitor Cdesignate terminals applied with DC biases, and L, Cand L, Care series resonance circuits. Half-wave double voltage rectifier circuits comprised of M, M, C-C, Rare connected in cascade at a plurality of stages.