Title：A phase domain analog to digital converter

Country：China

Patent No.：201710154193.X

Legal Status：Authorized

Inventor：Jingjing Dong, Hanjun Jiang, Shaoquan Gao, Zhaoyang Weng, Fule Li, Zhihua Wang

Assignee：Tsinghua University

Address：Tsinghua University,Haidian District Beijing 100086, China

Filing Date：2017-03-15

Issue Date：2020-05-19

The invention discloses a phase domain analog-digital converter comprising a reuse combiner and a reuse comparator, wherein the combiner performs different weights of amplification or minification on in-phase input or orthogonal input analog signals; the comparator compares the amplified or minified in-phase signal with the amplified or minified orthogonal signal to acquire quantized digital information; amplification and minification operation of the combiner is equivalent to dividing a complex plane into different sections; comparison operation of the comparator is equivalent to positioning the phase of the input signal into the section of the complex plane; the combiner respectively generates different magnifications according to a previous quantization result of the comparator at different moments, and the comparator correspondingly generates a digital quantization output for the next moment until phase quantization with specific accuracy is completed. According to the phase domain analog-digital converter provided by the invention, the active circuit is reused as much as possible in the case of fully considering characteristics of the receiver under different modulation modes and code rates, quantization difficulty of the phase information is greatly simplified, and power consumption and cost of the converter are reduced. 

Patent Certificate： PDF/Jpg