System and Circuit Design for an MB-OFDM UWB Frequency Synthesizer

Author

Mishra, Chinmaya ; Valdes-Garcia, Alberto ; Sánchez-Sinencio, Edgar ; Silva-Martinez, Jose

Author_Institution

Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX, USA

Volume

56

Issue

7

fYear

2009

fDate

7/1/2009 12:00:00 AM

Firstpage

1467

Lastpage

1477

Abstract

This paper presents a complete top-down design and experimental results for a fast-hopping 11-band 3-10-GHz frequency synthesizer. The system requirements for a synthesizer in an ultrawideband (UWB) radio are discussed. The synthesizer specifications for 480-Mb/s- and 1-Gb/s-data-rate multiband orthogonal-frequency-division-multiplexing UWB radios using quadrature phase shift keying and 16-quadrature amplitude modulation, respectively, are provided. The circuit-level implementation of this microwave system is described in detail including layout considerations. Fabricated in a 0.25-mum SiGe BiCMOS process and integrated in a receiver, the synthesizer was characterized in a quad-flat-no-leads package while being mounted on an FR-4 substrate. Measurement results and a model-hardware correlation analysis are presented.

Keywords

BiCMOS integrated circuits; Ge-Si alloys; OFDM modulation; frequency synthesizers; quadrature amplitude modulation; quadrature phase shift keying; ultra wideband communication; BiCMOS process; MB-OFDM; SiGe; bit rate 1 Gbit/s; bit rate 480 Mbit/s; circuit design; circuit layout; circuit-level implementation; frequency 3 GHz to 10 GHz; frequency synthesizer; microwave system; multiband orthogonal-frequency-division-multiplexing; quad-flat-no-leads package; quadrature amplitude modulation; quadrature phase shift keying; receiver; size 0.25 mum; ultrawideband radio; Frequency synthesizer; SiGe; multiband orthogonal frequency-division multiplexing (MB-OFDM); system design; ultrawideband (UWB);

fLanguage

English

Journal_Title

Circuits and Systems I: Regular Papers, IEEE Transactions on

Publisher

ieee

ISSN

1549-8328

Type

jour

DOI

10.1109/TCSI.2008.2006640

Filename

4671065