On the Development of a Low-Cost Compact Planar Integrated-Circuit Sampling Receiver for UWB Sytems

  • Jeongwoo Han
  • Rui Xu
  • Cam Nguyen

Ultra-wideband (UWB) impulse radar and communication systems, which employ video (baseband) pulse as the transmitting signal [1]-[9], are attractive for various applications, such as pavement assessment, bridge-deck inspection, geophysical explorations, collision avoidance, fluid level sensing, detection and classification of unexploded ordnance (UXO) and land-mines, and short-range in-building communications, e.g. [10], [11]

Sampling receivers are a critical part in these UWB systems. For instance, in UWB impulse radars, such as subsurface penetrating radar, sub-sampling of the received signal by a sampling receiver is needed to extract detected information. Synchronous sampling (or equivalent-time sampling) receiver is commonly used in UWB systems due to its simple and compact structure. The synchronous sampling method has been widely used in electro-optic sampling technique to down-convert RF signal or reproduce fast transient signals on a large time scale [12]. Another application of samling receivers are for microwave instrumentation such as network analyzers, frequency counters and digitizing oscilloscopes [13]-[19]. In this application, the sampling mixer is used for sub-sampling of a fast transient signal to recover it on a large time scale and for down-conversion of a continuous-wave signal. Solid-state millimeter-wave and electro-optic samplers, which are able to sub-sample picosecond transient signals, have been developed for instruments operating in the millimeter-wave band [20]-[24]. The sampling receivers for UWB applications particularly require low conversion loss and high dynamic range because of their direct conversion operation.


Pulse Repetition Frequency Microwave Theory Conversion Gain Conversion Loss Impulse Radar 
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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Jeongwoo Han
    • 1
  • Rui Xu
    • 2
  • Cam Nguyen
    • 2
  1. 1.Danam Systems, Inc.South Korea
  2. 2.Texas A&M UniversityCollege StationUSA

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