Technical Program

Paper Detail

Paper:COMM-P5.3
Session:Computation Kernels and IP for Communication Systems II
Time:Tuesday, May 25, 14:15 - 15:45
Presentation: Poster
Topic: Circuits and Systems for Communications: Wireless LAN Circuits (802.11, Bluetooth, HomeRF, etc.)
Title: A LOW-IF/ZERO-IF RECONFIGURABLE RECEIVER WITH TWO-STEP CHANNEL SELECTION TECHNIQUE FOR MULTISTANDARD APPLICATIONS
Authors: Pui-In Mak; University of Macau 
 Seng-Pan U.; University of Macau / Chipidea Microelectronics Ltd. 
 Rui Paulo Martins; University of Macau 
Abstract: This paper presents a low-IF/zero-IF reconfigurable receiver for multistandard applications based on a two-step channel selection (2-SCS) technique. Such technique is mainly implemented by a reconfigurable sampling scheme, which can perform either programmable Analog-Double Quadrature Sampling (A-DQS) or Analog-Baseband Sampling (A-BS) to, first relax the front-end PLL-frequency synthesizer (PLL-FS) locking time and phase noise requirements, and second allow a low-IF architecture to be transformable to a zero-IF one with small overheads. In this way, the receiver can operate in low-IF mode for narrowband standards avoiding 1/f noise and DC offset, and alternatively, for wideband ones it can be reconfigured seamlessly in zero-IF mode to minimize image interference. The operating principles, design considerations and circuit implementation of such scheme for multistandard applications, that include Bluetooth, HomeRF and IEEE 802.11FH, will demonstrate the flexibility of such topology.
 
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