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. 19, 2016
Filed:
Sep. 10, 2015
Intel Corporation, Santa Clara, CA (US);
Hsien-Ku Chen, New Taipei, TW;
Pei-Wei Chen, New Taipei, TW;
Intel Corporation, Santa Clara, CA (US);
Abstract
The present invention presents a RF receiver circuit including an inductor-coupling single-ended input differential-output LNA, a mixer circuit, and a differential trans-impedance amplifier. The inductor-coupling single-ended input differential-output LNA includes a single-ended input, a balance-to-unbalance transformer, and an inductor-less differential LNA. The balance-to-unbalance transformer is used to transform the radio frequency signals into a plurality of differential-output first differential signals and includes a first inductor and a second inductor. The inductor-less differential LNA is used to transform the first differential signals into a plurality of differential-output second differential signals, wherein the input impedance of the inductor-coupling single-ended input differential-output LNA is inversely proportional to the square of the coil ratio of the first and second inductor, and the product of the reciprocal of the coil ratio and the input impedance matches the external input impedance of the inductor-coupling single-ended input differential-output LNA.