A CMOS UWB Pulse Generator for 6-10 GHz Applications

A CMOS ultra wideband (UWB) pulse generator with low energy dissipation and high peak amplitude is presented for 6-10 GHz applications. The pulse generator complies with the FCC spectral mask for indoor UWB systems. It consists of a glitch generator, a pulsed oscillator, and a pulse shaping filter....

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Bibliographic Details
Published in:IEEE microwave and wireless components letters 2009-02, Vol.19 (2), p.83-85
Main Authors: SIM, Sanghoon, KIM, Dong-Wook, HONG, Songcheol
Format: Article
Language:English
Subjects:
Applied sciences
Bandwidth
Cardiac arrhythmia
Circuit properties
CMOS
CMOS process
Coherent
Design. Technologies. Operation analysis. Testing
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Energy dissipation
Exact sciences and technology
FCC
Filters
Integrated circuits
Oscillators
Oscillators, resonators, synthetizers
Pulse generation
pulse generator
pulse shaping filter
Pulse shaping methods
pulsed oscillator
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Transient response
ultra wideband (UWB)
Ultra wideband technology
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Summary:A CMOS ultra wideband (UWB) pulse generator with low energy dissipation and high peak amplitude is presented for 6-10 GHz applications. The pulse generator complies with the FCC spectral mask for indoor UWB systems. It consists of a glitch generator, a pulsed oscillator, and a pulse shaping filter. The pulsed oscillator is switched on by the glitch signal only for a short duration, so as to make a UWB pulse. For sub-nanosecond pulse generation, a pulsed oscillator with fast transient response is proposed. A pulse shaping filter makes the oscillator output fall into the FCC spectral mask. The pulse generator is fabricated using a 0.18 mum CMOS process. The core chip has a size of 0.11 mm 2 . It shows pulse duration of about 500 ps with -10 dB bandwidth of 4.5 GHz from 5.9 to 10.4 GHz. The energy consumption is 27.6 pJ per pulse with a peak-to-peak amplitude of 673 mV on a 50 Omega output load. The generated pulses are very coherent with 1.8 ps RMS jitter.
ISSN:1531-1309
2771-957X
1558-1764
2771-9588
DOI:10.1109/LMWC.2008.2011318