Title: Radio-frequency receiver and radio frequency receiving method
Application Number: 200510081913 Application Date: 2005.07.06
Publication Number: 1893285 Publication Date: 2007.01.10
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H04B1/16;H03D7/16
Applicant(s) Name: Luoda Science-Technology Co., Ltd. Address:
Inventor(s) Name: Yang Zhansheng;Wang Zhongzheng;Liu Yuhua
Attorney & Agent: lu xiaozhang ma ying
Abstract:
    The radio frequency receiver includes a unit for descending frequency, a harmonic filtration unit, a first ascending frequency unit, and a second ascending frequency unit. Receiving a signal in radio frequency, the unit for descending frequency lowers the radio frequency to first frequency so as to generate first in-phase signal and first orthogonal signal. Being coupled to the descending unit, the harmonic filtration unit carried out killer amplification for the received first in-phase and orthogonal signals so as to generate second in-phase and orthogonal signals. Being coupled to the harmonic filtration unit, the first ascending frequency unit raises the received second in-phase and orthogonal signals to a second frequency so as to generate third in-phase and orthogonal signals. Being coupled to the first ascending frequency unit, the second ascending frequency unit raises third in-phase and orthogonal signals to a third frequency so as to generate an intermediate frequency signal.
Time: 19
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