Title:
POLAR MODULATION CIRCUIT AND MODULATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/093223
Kind Code:
A1
Abstract:
Provided are a polar modulation circuit and a modulation method therefor. Two methods, delaying N clock periods by means of a digital clock of a digital portion and adjusting a filter group delay by means of an analog portion are combined together, so that a delay difference between two sides is accurately controlled, and the delay difference is as small as possible without influencing the quality of modulation. The specific values of N of the two sides are adjusted and compensated for according to the delay difference between the two sides. According to the method, a path delay difference between an amplitude signal and a phase signal can be compensated for with high precision.
Inventors:
PAN SHAOHUI (CN)
HU NORMAN SHENGFA (CN)
HU NORMAN SHENGFA (CN)
Application Number:
PCT/CN2020/077370
Publication Date:
May 20, 2021
Filing Date:
March 01, 2020
Export Citation:
Assignee:
ANYKA GUANGZHOU MICROELECTRONICS TECH CO LTD (CN)
International Classes:
H03F1/32; H03F1/06; H03F3/24
Foreign References:
| CN1799237A | 2006-07-05 | |||
| CN101390285A | 2009-03-18 | |||
| CN101111992A | 2008-01-23 | |||
| US20020193085A1 | 2002-12-19 | |||
| US20020141510A1 | 2002-10-03 | |||
| CN101361341A | 2009-02-04 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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