Performance Enhancement of a Sub-Sampling Circuit for Ultra-Wideband Signal Processing

  title={Performance Enhancement of a Sub-Sampling Circuit for Ultra-Wideband Signal Processing},
  author={Cemin Zhang and A. E. Fathy and Mohamad Mahfouz},
  journal={IEEE Microwave and Wireless Components Letters},
An ultra-wideband (UWB) sampling mixer has been developed based on utilizing the combined advantages of two known circuit topologies: a wideband balun and a balanced-feed mixer. The developed sampler is integrated with a step-recovery diode strobe-step generator to sub-sample UWB signals. The fabricated sub-sampler demonstrated a 3.5-dB radio frequency to intermediate frequency (RF-IF) conversion loss up to 1 GHz (without the IF amplification), and a wide 3 dB bandwidth that exceeded 3.5-GHz… CONTINUE READING
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