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    • 2. 发明授权
    • Quadrature combining and adjusting
    • 正交组合和调整
    • US09088471B1
    • 2015-07-21
    • US14465442
    • 2014-08-21
    • QUALCOMM Incorporated
    • Hong Sun KimJames Ian JaffeePaul SheehyJeremy Darren DunworthCheng-Han WangPrasad Srinivasa Siva GudemOjas Mahendra ChoksiJungdong Park
    • H04L5/12H04L27/36H04L27/26H04L27/00
    • H04L27/362H04L27/206H04L27/2071H04L27/364H04L2027/0016
    • Certain aspects of the present disclosure provide methods and apparatus for performing quadrature combining and adjusting. One example circuit may include first through fourth mixing circuits. The first mixing circuit may multiply a radio frequency signal with a first local oscillating signal to generate a first frequency converted signal. The second mixing circuit may multiply a radio frequency (RF) signal with a second local oscillating signal, which may be about 90° out of phase with the first local oscillating signal, to generate a second frequency converted signal. The third and fourth mixing circuits may multiply the RF signal with the second and first signals, respectively, to generate third and fourth frequency converted signals, respectively. A first combining circuit may combine the first and third frequency converted signals, and a second combining circuit may combine the second and fourth frequency converted signals.
    • 本公开的某些方面提供了用于执行正交组合和调整的方法和装置。 一个示例电路可以包括第一至第四混合电路。 第一混合电路可以将射频信号与第一本地振荡信号相乘以产生第一频率转换信号。 第二混合电路可以将射频(RF)信号与第二本地振荡信号相乘,该第二本地振荡信号可以与第一本地振荡信号相差约90°,以产生第二频率转换信号。 第三和第四混频电路可以分别将RF信号与第二和第一信号相乘,以分别产生第三和第四频率转换信号。 第一组合电路可以组合第一和第三频率转换信号,并且第二组合电路可以组合第二和第四频率转换信号。