Integrated Distributed Transversal Filters for Pulse Shaping and Interference Suppression in UWB Impulse Radios

The stringent emission mask and interference specifications in ultra-wideband (UWB) impulse radios present great challenges for the transceiver architecture design and circuit implementation. This paper proposes to use integrated distributed transversal filters (DTF) for pulse shaping in the transmitter and for narrow-band interference (NBI) suppression in the receiver. Analyses show that an integrated DTF can accurately generate notches at multiple frequencies with tunability and relatively low power consumption. A 7-tap DTF prototype was implemented using a commercial 0.18 mum SiGe BiCMOS technology. Measurement results demonstrate the pulse shaping and interference suppression capabilities of DTFs. The typical power consumption of the prototype is 30 mW

[1]  W.R. Hewlett,et al.  Distributed Amplification , 1948, Proceedings of the IRE.

[2]  Moe Z. Win,et al.  Ultra-wide bandwidth time-hopping spread-spectrum impulse radio for wireless multiple-access communications , 2000, IEEE Trans. Commun..

[3]  B. Jagannathan,et al.  A 0.18 /spl mu/m BiCMOS technology featuring 120/100 GHz (f/sub T//f/sub max/) HBT and ASIC-compatible CMOS using copper interconnect , 2001, Proceedings of the 2001 BIPOLAR/BiCMOS Circuits and Technology Meeting (Cat. No.01CH37212).

[4]  R. Brodersen,et al.  AN INTEGRATED , LOW POWER , ULTRA-WIDEBAND TRANSCEIVER ARCHITECTURE FOR LOW-RATE , INDOOR WIRELESS SYSTEMS , 2002 .

[5]  J.R. Marciante,et al.  A 0.18 /spl mu/m CMOS distributed transversal filter for sub-nanosecond pulse synthesis , 2006, 2006 IEEE Radio and Wireless Symposium.

[6]  Ali Hajimiri,et al.  Integrated transversal equalizers in high-speed fiber-optic systems , 2003, IEEE J. Solid State Circuits.

[7]  Marian Verhelst,et al.  Architectures for low power ultra-wideband radio receivers in the 3.1-5GHz band for data rates < 10Mbps , 2004, Proceedings of the 2004 International Symposium on Low Power Electronics and Design (IEEE Cat. No.04TH8758).

[8]  Keren Li,et al.  A novel UWB bandpass filter and its application to UWB pulse generation , 2005, 2005 IEEE International Conference on Ultra-Wideband.

[9]  Y. Tajima,et al.  A novel MMIC active filter with lumped and transversal elements , 1989, Digest of Papers.,Microwave and Millimeter-Wave Monolithic Circuits Symposium.

[10]  W. Jutzi,et al.  Microwave Bandwidth Active Transversal Filter Concept With MESFETs , 1971 .

[11]  Ali Hajimiri,et al.  Silicon-based distributed voltage-controlled oscillators , 2001, IEEE J. Solid State Circuits.

[12]  L. B. Milstein,et al.  Interference rejection techniques in spread spectrum communications , 1988, Proc. IEEE.

[13]  C. Rauscher,et al.  Microwave Active Filters Based on Transversal and Recursive Principles , 1985 .