Title :
Design of low cost broadband class-E power amplifier using low voltage supply
Author :
Qin, Y. ; Gao, S. ; Sambell, A.
Author_Institution :
Sch. of Eng. & Technol., Northumbria Univ., Newcastle-upon-Tyne, UK
Abstract :
The design of a broadband high efficiency class-E power amplifier for use in wireless communication systems is presented. A low cost PHEMT device is employed to enhance both efficiency and bandwidth performance. The design has been investigated theoretically and experimentally and simulated using the harmonic balance method in an advance design system (ADS). A peak PAE of 72.1% is achieved at 1.95 GHz with transducer power gain of 10.8 dB in the improved design, together with a resulting bandwidth of 35% (1.52 GHz to 2.16 GHz). Simulation and practical results confirm the validity of these approaches.
Keywords :
HEMT circuits; UHF power amplifiers; low-power electronics; wideband amplifiers; 0.64 GHz; 1.95 GHz; 10.8 dB; 72.1 percent; ADS; PAE; PHEMT device; advance design system; class-E power amplifier; harmonic balance method; high efficiency amplifier; low cost broadband amplifier; low voltage supply; transducer power gain; wireless communication systems; Bandwidth; Broadband amplifiers; Costs; Frequency; High power amplifiers; Low voltage; PHEMTs; Parasitic capacitance; Power amplifiers; Switches;
Conference_Titel :
High Frequency Postgraduate Student Colloquium, 2004
Print_ISBN :
0-7803-8426-1
DOI :
10.1109/HFPSC.2004.1360363
