A UWB-IR Transmitter With Digitally Controlled Pulse Generator

Author

Norimatsu, Takayasu ; Fujiwara, Ryosuke ; Kokubo, Masaru ; Miyazaki, Masayuki ; Maeki, Akira ; Ogata, Yuji ; Kobayashi, Shinsuke ; Koshizuka, Noboru ; Sakamura, Ken

Author_Institution

Central Res. Lab., Hitachi Ltd., Tokyo

Volume

42

Issue

6

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

1300

Lastpage

1309

Abstract

A novel transmitter for ultra-wideband (UWB) impulse radio has been developed. The proposed architecture enables low-power operation, simple design, and accurate pulse-shape generation. The phase and amplitude of the pulse are controlled separately and digitally to generate a desired pulse shape. This digital control method also contributes to the low-power transmission and eliminates the need for a filter. The transmitter is fabricated using a 0.18-mum CMOS process. The core chip size is only 0.40 mm². From experimental measurements, it was found that the generated signal satisfied the FCC spectrum mask, and the average power dissipation was only 29.7 mW at A 2.2-V supply voltage. Therefore, the developed UWB transmitter generates accurate pulses with low power consumption and simple design architecture

Keywords

CMOS digital integrated circuits; field effect MIMIC; field effect MMIC; low-power electronics; pulse generators; radio transmitters; 0.18 micron; 2.2 V; 29.7 mW; CMOS process; FCC spectrum mask; UWB transmitter; digitally controlled pulse generator; ultra-wideband impulse radio transmitter; wireless sensor network; CMOS process; Digital control; Digital filters; Power generation; Power measurement; Pulse generation; Pulse shaping methods; Radio transmitters; Shape control; Ultra wideband technology; Impulse radio; pulse generator; sensor network; ultra-wideband (UWB);

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/JSSC.2007.897137

Filename

4214977