Fig. 1. Concept of proposed PA.
Fig. 2. Overall architecture.
Fig. 3. Simulated fundamental and second order harmonic power versus RF input power.
Fig. 4. Simulated operation of power detector.
Fig. 5. Simulated power detector output DC voltage versus RF input power.
Fig. 6. Full-schematic of the proposed linear PA using pre-distortion method.
Fig. 7. Simulated capacitance and quality factor of variable capacitors.
Fig. 8. Simulated Smith-chart of input node at PA.
Fig. 9. Simulated total gate width of MOS capacitor versus output power of PA.
Fig. 10. Simulated gain versus output power of PA.
Fig. 11. Simulated PAE versus output power of PA.
Fig. 12. Simulated DC power consumption of power detector.
Fig. 13. Simulated output power versus input power.
Table 1. Summary of linear power amplifier performance.
참고문헌
- N. Kalantari and J. F. Buckwalter, "A Nested Reactance Feedback Power Amplifier for Q Band Application," IEEE Trans. Microw. Theory Tech., vol.60, no.6, pp.1667-1675, 2012. DOI: 10.1109/TMTT.2012.2190751
- J. Dawson and T. H. Lee, "Automatic phase alignment for a fully integrated Cartesian feedback power amplifier system," IEEE J of Solid State Circuits, vol.38, no.12, pp.2269-2279, 2003. DOI: 10.1109/JSSC.2003.819090
- A. Gokceoglu, A. Ghadam, and M. Valkama, "Steady State Performance Analysis and Step Size Selection for LMS Adaptive Wideband Feedforward Power Amplifier Linearizer," IEEE Trans. Signal Processing, vol.60, no.1, pp.82-99, 2012. DOI: 10.1109/TSP.2011.2169254.
- J. J. Chen, C. M. Kung, and Y. S. Hwang, "Feedforward simple control techniqu e for on chip all digital three phase AC/DC power MOSFET converter with least components," IET Circ. Devices Syst., vol.3, no.4, pp.161-171, 2009. DOI: 10.1049/iet-cds.2008.0361
- Y. Y. Huang, W. Woo, H. Jeon, C. H. Lee, and J. S. Kenney, "Compact Wideband Linear CMOS Variable Gain Amplifier for Analog Predistortion Power Amplifiers," IEEE Trans. Microw. Theory Tech., vol.60, no.1, pp.68-76, 2012. DOI: 10.1109/TMTT.2011.2175234
- S. Ko and J. Lin, "A Linearized Cascode CMOS Power Amplifier," IEEE Wireless and Microwave Technology Conference, 2006. DOI: 10.1109/WAMICON.2006.351920
-
K. Kim and Y. Kwon, "A Broadband Logarit hmic Power Detector in
$0.13-{\mu}m$ CMOS," IEEE Microw. Wirel. Compon. Lett., vol.23, no.9, pp.498-500, 2013. DOI: 10.1109/LMWC.2013.2274994