发明名称 |
METHOD AND APPARATUS TO DETECT LO LEAKAGE AND IMAGE REJECTION USING A SINGLE TRANSISTOR |
摘要 |
Local oscillator (LO) leakage and Image are common and undesirable effects in typical transmitters. Typically, fairly complex hardware and algorithms are used to calibrate and reduce these impairments. A single transistor that draws essentially no dc current and occupies a very small area detects the LO leakage and Image signals. The single transistor operating as a square-law device is used to mix the signals at the input and output ports of a power amplifier. The mixed signal generated by the single transistor enables the simultaneous calibration of the LO leakage and Image Rejection. |
申请公布号 |
WO2016033073(A1) |
申请公布日期 |
2016.03.03 |
申请号 |
WO2015US46740 |
申请日期 |
2015.08.25 |
申请人 |
TENSORCOM, INC. |
发明人 |
THAM, KHONGMENG;MA, HUAINAN;SOE, ZAW;CHEUNG, RICKY LAP KEI |
分类号 |
H03D7/18;H03D7/12;H04B1/04 |
主分类号 |
H03D7/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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