A new RF front-end and frequency synthesizer architecture for 3.1-10.6 GHz MB-OFDM UWB receivers

Author

Zhang, Pengbei ; Ismail, Mohammed

Author_Institution

Dept. of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH

fYear

2005

fDate

7-10 Aug. 2005

Firstpage

1119

Abstract

In this paper, an RF front-end and frequency synthesizer architecture is presented that targets a 3.1-10.6 GHz, low-cost, low-complexity, low power consumption, fully integrated receiver with minimum off-chip components for multiband OFDM ultrawideband (MB-OFDM UWB) systems. This paper provides an insight on how to determine the requirements, address design trade-offs and derive receiver specifications. A thorough study on out-of-band blockers reveals a few design trade-offs when implementing a UWB receiver with full frequency coverage. This observation leads to a front-end combining a wideband balun with a single-ended LNA that allows highest degree of on-chip integration. In addition, by exploiting the inherent relationship among band center frequencies, a new frequency synthesis scheme is proposed to generate all 14 MB-OFDM UWB bands with minimum number of mixing steps

Keywords

OFDM modulation; baluns; frequency synthesizers; microwave receivers; radio receivers; ultra wideband communication; 3.1 to 10.6 GHz; MB-OFDM UWB receivers; RF front-end architecture; frequency synthesis scheme; frequency synthesizer architecture; multiband OFDM ultrawideband systems; on-chip integration; out-of-band blockers; wideband balun; Computer architecture; Energy consumption; Firewire; Frequency diversity; Frequency synthesizers; OFDM; Radio frequency; Switches; Ultra wideband technology; Very large scale integration;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2005. 48th Midwest Symposium on

Conference_Location

Covington, KY

Print_ISBN

0-7803-9197-7

Type

conf

DOI

10.1109/MWSCAS.2005.1594302

Filename

1594302