Title :
A Design of Wide-Band Power Amplifier for Wireless Communications
Author :
Zeng, Wenbin ; Nie, Zaiping ; Diao, Junming
Author_Institution :
Dept. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
This paper presents a design of wide-band power amplifier for applications of advanced wireless communication system. Diamond buffer and parallel cascode structure are used in this amplifier. In order to further expand the bandwidth, the inductance and capacitance compensation are also adopted. This has been developed and shown its 3 dB bandwidth from 9 kHz to 611 MHz, output power 21.7 dBm at 1 dB gain compression power, satisfied gain flatness with the disturbance less than ±0.5 dB, the power gain 12 dB within the bandwidth from 9 kHz to 500 MHz, and the harmonic suppression over the whole operational frequency band is greater than 30 dBc.
Keywords :
harmonics suppression; power amplifiers; radiocommunication; capacitance compensation; diamond buffer; frequency 9 kHz to 611 MHz; gain 1 dB; harmonic suppression; inductance compensation; parallel cascode structure; wide-band power amplifier; wireless communications; Bandwidth; Diamond-like carbon; Gain; Impedance; Power amplifiers; Power generation; Transistors;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6250-6
DOI :
10.1109/wicom.2011.6040553
