Digital RF receiver front-end with wideband operation capability for m-WiMAX

Seo, Heesong; Choi, Injun; Park, Changjoon; Yoon, Jaesung; Kim, Bumman

doi:10.1109/rfic.2011.5940593

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“…The NDF filter has also been designed to share the same clock signal with the FIR filter. Through this optimization, the clock generator can be simplified, reducing the chip area and the noise figure [15].…”

Section: Introductionmentioning

confidence: 99%

Multi Band, Multi Mode Digital Rf Receiver Front-End Module for M-Wimax

Patil¹

2014

IJRET

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A digital RF receiver front-end employing a DT filter is proposed for application to m-WiMAX & The SAW-less receiver architecture, where the large out-of-band interferer can be rejected selectively by using a scalable frequency response property of FIR filter. In addition to the flexibility of the DT filter, the new non-decimation finite impulse response (NDF) filter can be cascaded to a conventional FIR filter without the decimation effect. Thus, we can easily increase the order of the function-type filtering response and the signal processing bandwidth and the designed receiver front-end is implemented using an IBM 130-nm RF CMOS process. The fabricated chip satisfies the m-WiMAX specification of an 8.75 MHz channel bandwidth and the total system power consumption is 26.63 mA from a 1.5-V supply voltage. The chip shows unwanted blocker rejection over 80 dB, with good linearity of +3.94 dB IIP3.

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Section: Introductionmentioning

confidence: 99%