A regenerative semi-dynamic frequency divider for mode-1 MB-OFDM UWB hopping carrier generation

Author

Lin, Chien-chih ; Wang, Chorng-Kuang

Author_Institution

Nat. Taiwan Univ., Taipei, Taiwan

fYear

2005

Firstpage

206

Abstract

A semi-dynamic regenerative frequency divider for MB-OFDM UWB hopping carrier generation is presented. With the ratio of 7.5, it provides quadrature symmetric 528 MHz deviation for direct frequency synthesis. Realized in 0.18 μm CMOS, the chip occupies 0.8×0.85 mm². The synthesizer achieves -20 dBc image suppression while consuming 18 mW from a 1.8 V supply.

Keywords

CMOS analogue integrated circuits; OFDM modulation; frequency dividers; frequency hop communication; frequency synthesizers; integrated circuit design; microwave integrated circuits; power consumption; ultra wideband communication; 0.18 micron; 0.8 mm; 0.85 mm; 1.8 V; 18 mW; 3.432 to 4.488 GHz; CMOS; UWB hopping carrier generation; direct frequency synthesis; image suppression; multi-band OFDM; multi-band orthogonal frequency division multiplexing; regenerative frequency divider; regenerative semi-dynamic frequency divider; Amplitude modulation; Frequency conversion; Frequency synthesizers; Low pass filters; OFDM; Phase locked loops; Satellites; Signal generators; Signal synthesis; Ultra wideband technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference, 2005. Digest of Technical Papers. ISSCC. 2005 IEEE International

Conference_Location

San Francisco, CA

ISSN

0193-6530

Print_ISBN

0-7803-8904-2

Type

conf

DOI

10.1109/ISSCC.2005.1493941

Filename

1493941