An RF front-end with an automatic gain control technique for a U/V band CMMB receiver |
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Authors: | Zhao Jinxin Hu Xueqing Shi Yin Wang Lei |
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Affiliation: | Suzhou-CAS Semiconductor Integration R&D Center, Suzhou 215000, China |
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Abstract: | This paper presents a fully integrated RF front-end with an automatic gain control(AGC) scheme and a digitally controlled radio frequency varied gain amplifier(RFVGA) for a U/V band China Mobile Multimedia Broadcasting(CMMB) direct conversion receiver.The RFVGA provides a gain range of 50 dB with a 1.6 dB step. The adopted AGC strategy could improve immunity to adjacent channel signal,which is of importance for CMMB application.The front-end,composed of a low noise amplifier(LNA),an RFVGA,a mixer and AGC,ac... |
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Keywords: | CMMB RF front-end RFVGA AGC LNA mixer |
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