Title：A receiver front-end apparatus and its method of receiving signal

Country：China

Patent No.：201110166752.1

Legal Status：Authorized

Inventor：Baoyong Chi, Nan Qi, Yang Xu, Xiaobao Yu, Yang Shu, Xing Zhang, Zhihua Wang

Assignee：Tsinghua University

Address：Institute of Microelectronics,Tsinghua Univ. Beijing,10084

Filing Date：2011-06-21

Issue Date：2014-06-18

The invention discloses a radio frequency front end device of a receiver and a signal receiving method thereof and belongs to the field of radio communication and satellite positioning and navigation. The device comprises two mutually-independent and parallel signal channels. Each signal channel is connected as follows: a low noise amplifier, a surface acoustic wave filter, a radio amplifier, a quadrature output down-converter, a correction buffer and a multi-mode filter are connected in series; the output end of the multi-mode filter is connected with the input end of a controllable gain amplifier; the output end of the controllable gain amplifier is respectively connected with the input end of an automatic gain controller and the input end of a multi-mode analogue/digital converter; and the output end of the automatic gain controller is connected with a gain control end of the controllable gain amplifier. The invention has the advantages as follows: the radio frequency front end device has system-level and module-level reconfigurability, supports all kinds of the traditional global positioning systems to be the maximum and greatly improves the flexibility of use for users. The radio frequency front end device has strong robustness.

Patent Certificate： PDF/Jpg