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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.19 [2012] >
IJEMS Vol.19(2) [April 2012] >
| Title: | Class-E power amplifier and its linearization using analog predistortion |
| Authors: | Sampath, P
Gunavathi, K |
| Keywords: | Power amplifier
Linearization
PAE
NF
IIP3 |
| Issue Date: | Apr-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | In this paper,
power amplifier operating with center frequency of 947.5 MHz, which can be used
for the transmitter in beamforming systems, is proposed. The power amplifier
implemented provides high power added efficiency (PAE) of 71.967% and low noise
figure (NF) as low as 1.525. The linearity of the power amplifier is improved
by using square law and cubic law analog predistortion techniques. The power
amplifier is designed and implemented using 0.35 µm CMOS technology. The power
amplifier implemented provides high SNR of 82.723 and the linearity is improved
by suppressing the power in the 2nd and 3rd order
harmonics. |
| Page(s): | 144-152 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.19(2) [April 2012]
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