A fully integrated triple-band CMOS hybrid-EER transmitter for WCDMA/LTE applications

Author

Woo-Young Kim ; Hyuk Su Son ; Joo Young Jang ; Joon Hyung Kim ; Inn Yeal Oh ; Chul Soon Park

Author_Institution

Dept. of Electr. Eng., KAIST, Daejeon, South Korea

fYear

2014

fDate

1-6 June 2014

Firstpage

1

Lastpage

3

Abstract

This paper presents a fully integrated triple-band CMOS hybrid-EER transmitter for WCDMA/LTE applications. The operation frequency bands are 0.8/2.3 GHz for LTE and 1.9 GHz for WCDMA applications with multi-band class-E power amplifier (PA) using a power cell resizing technique and a multitap transformer. The multi-mode envelope amplifier support 3.84-MHz WCDMA and 5-MHz LTE signal with a dual-switching stage for high efficiency. The PA and envelope amplifier are integrated in a single chip using CMOS process with input/output matching networks. To compensate the nonlinearity of the supply modulated transmitter, the on-chip linearizer is design on a chip. The transmitter achieves output powers of 23/26/22 dBm and power-added efficiency of 27/33/23 % at each frequency band. The transmitter is implemented in a 0.18 μm CMOS process. The total chip size is 1.6 × 2.5 mm².

Keywords

CMOS integrated circuits; Long Term Evolution; UHF integrated circuits; UHF power amplifiers; code division multiple access; radio transmitters; transformers; PA; WCDMA- signal; bandwidth 3.84 MHz; bandwidth 5 MHz; dual-switching stage; efficiency 23 percent; efficiency 27 percent; efficiency 33 percent; frequency 0.8 GHz; frequency 1.9 GHz; frequency 2.3 GHz; fully integrated triple-band CMOS hybrid-EER transmitter; input-output matching networks; multiband class-E power amplifier; multimode envelope amplifier; multitap transformer; on-chip linearizer; power cell resizing technique; size 0.18 mum; supply modulated transmitter nonlinearity; CMOS integrated circuits; Chirp modulation; Distortion; Frequency modulation; Multiaccess communication; Spread spectrum communication; Switches; CMOS; Hybrid-EER; LTE; Power Amplifier; WCDMA;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium (IMS), 2014 IEEE MTT-S International

Conference_Location

Tampa, FL

Type

conf

DOI

10.1109/MWSYM.2014.6848411

Filename

6848411