A Dual-Mode Multi-Band Second Harmonic Controlled SOI LDMOS Power Amplifier

Author

Kichul Kim ; Dong-Ho Lee ; Songcheol Hong

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea

Volume

25

Issue

7

fYear

2015

fDate

42186

Firstpage

466

Lastpage

468

Abstract

This letter presents a dual-mode multi-band second harmonic controlled SOI LDMOS power amplifier (PA). A mode selection switch is designed to have better power handing capability than a conventional switch, which improves performance in low power mode (LPM). To improve the PA´s linearity in high power mode (HPM), second harmonic is controlled with the aid of a path for LPM. The PA, implemented with a 0.13- μm SOI LDMOS process, operates in triple bands (band 5, 8, and 20) with dual power modes. It is measured using a 16 QAM long-term evolution (LTE) signal with a 10 MHz bandwidth. At 850 MHz, the results show 27.7 dBm average output power (Pout), 31.4 dB gain, and 31.4% power-added efficiency (PAE) with 4% error-vector magnitude (EVM) in HPM and 10.4 dB gain, 15.5 dBm Pout, and 22.5% PAE with 4% EVM in LPM with the LTE signal.

Keywords

CMOS analogue integrated circuits; UHF integrated circuits; UHF power amplifiers; low-power electronics; silicon-on-insulator; 16 QAM Long-Term Evolution signal; EVM; HPM; LPM; LTE signal; PA linearity; bandwidth 10 MHz; dual-mode multiband second harmonic controlled SOI LDMOS power amplifier; efficiency 22.5 percent; efficiency 31.4 percent; error-vector magnitude; frequency 850 MHz; gain 10.4 dB; gain 31.4 dB; high power mode; low power mode; mode selection switch; power handing capability; size 0.13 mum; CMOS integrated circuits; Capacitors; Harmonic analysis; Linearity; Power generation; Power system harmonics; Switches; Adaptive bias circuit; LTE; SOI LDMOS PA; dual-mode; multi-band; second harmonic controlled;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2015.2429115

Filename

7118259