DocumentCode :
859738
Title :
Sub-nanosecond pulse-forming network on SiGe BiCMOS for UWB communications
Author :
Tan, Adrian Eng-Choon ; Chia, Michael Yan-Wah ; Leong, Siew-Weng
Author_Institution :
Inst. for Infocomm Res., Nat. Univ. of Singapore, Singapore
Volume :
54
Issue :
3
fYear :
2006
fDate :
3/1/2006 12:00:00 AM
Firstpage :
1019
Lastpage :
1024
Abstract :
A pulse-forming network (PFN) has been developed for ultra-wideband (UWB) communication systems. This PFN generates sub-nanosecond pulses at a pulse repetition frequency (PRF) of >500 MHz for high data-rate applications like wireless video streaming. To generate the pulses, the PFN performs two operations on an input data signal: it decreases the signal rise time, then it differentiates the signal. The differentiation circuit is a frequency-dependent negative-feedback system. The PFN is fabricated in SiGe BiCMOS with an active die size of less than 0.25 mm2, and it requires 3.3-V 20-mA dc during operation. Measured performance is validated at 500-MHz PRF, achieving pulsewidth of 175 ps and pulse amplitude of 0.17 V. The PFN is also validated within a transmitter system that transmits Manchester coded pseudorandom bit sequence. Measured effective isotropic radiated power of the transmitter shows that the PFN output power is sufficient to meet the Federal Communications Commission´s emission limits, thus eliminating the need of amplification before transmission.
Keywords :
BiCMOS analogue integrated circuits; Ge-Si alloys; UHF integrated circuits; circuit feedback; differentiating circuits; pulse generators; semiconductor materials; transmitters; ultra wideband communication; 0.17 V; 175 ps; 20 mA; 3.3 V; 500 MHz; BiCMOS technology; Manchester coded pseudorandom bit sequence; SiGe; UWB communications; active die size; analog integrated circuits; differentiation circuit; input data signal; negative-feedback system; pulse generation; pulse repetition frequency; pulse-forming networks; sub-nanosecond pulses; transmitter system; ultra-wideband communication systems; BiCMOS integrated circuits; Frequency; Germanium silicon alloys; Pulse generation; Pulse measurements; Silicon germanium; Streaming media; Transmitters; Ultra wideband communication; Ultra wideband technology; Analog integrated circuits (ICs); differentiating circuit; pulse generation; transmitter; ultra-wideband (UWB) communications;
fLanguage :
English
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9480
Type :
jour
DOI :
10.1109/TMTT.2006.869723
Filename :
1603846
Link To Document :
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