Title :
Out-band interference rejection in UWB LNA receiver using coupled inductors in 3.1–10.6 GHz
Author :
Abiri, Ebrahim ; Salehi, Mohammad Reza ; Rezaei, Hossein ; Arab, Soodeh
Author_Institution :
Department of Electrical and Electronics Engineering, Shiraz University of Technology, Shiraz, Iran
Abstract :
Summary from only given. In this paper, a UWB LNA circuit with new input stage is proposed. In this scheme, a combination of coupled inductors in input stage is utilized. The input stage is able to easily reject out-band interference with 29.6 dB. This input stage is applied in an LNA with 0.18 m technology. The LNA has a peak gain of 24 dB in 3.1–10.6 GHz frequency band while minimum noise figure in mentioned frequency band is 1.44 dB. The UWB LNA core consumes 14.1 mW DC power from 1.8 V. S11 is less than −10.3 dB over entire bandwidth since best value of IIP3 over entire bandwidth is −13 dBm which occurs at6 GHz.
Keywords :
Out-band interference; coupled inductors; image rejection; low noise amplifier (LNA); noise figure; ultra wide band) UWB);
Conference_Titel :
Electrical Engineering (ICEE), 2011 19th Iranian Conference on
Conference_Location :
Tehran
Print_ISBN :
978-1-4577-0730-8
