Abstract:
This study presents an apparatus for detecting Ultra
Wide-Band (UWB) impulse radio (IR) signals using circuit with a normal
ultra-high-speed integrated comparator, which having nonlinear dynamics
characteristics with the same N-shaped I-V characteristic as tunnel diode.
This circuit is configured to generate amplified pulse in response to
incoming weak UWB impulse radio signals by utilizing the negative resistance
region of the I-V characteristic with differential input. It can provide
higher symbol rate than correlation detector and is more stable, more
feasible and less complicated than the tunnel diode detector. The experiment
results indicate that the detecting sensitivity of this apparatus is approximate
to that of the tunnel diode detector.
Zhang Wenhui and Lin Jiming, 2008. UWB Impulse Radio Signal Detection with High-Speed Integrated Comparator. Information Technology Journal, 7: 516-521.
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