Characteristic of the ultra-wideband electromagnetic radiation generated by PCSS

✍ Scribed by Chi Ruan; Wei Zhao; Guo-Fu Chen; Shao-Lan Zhu

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 254 KB
• Volume: 49
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.22393

✦ Synopsis

Abstract

A novel ultra‐wideband electromagnetic pulse generating method based on the photoconductive semiconductor switches (PCSS) is presented. Gallium arsenide is used to develop the PCSS for an ultrashort electromagnetic pulse source. The pulse generated by such PCSS is within picosecond (ps) time scale, and can yield power pulse with an voltage over 10 kV. The experimental results show that the pulses are stable, with the peak–peak amplitude change of 6% and the time jitter within several picoseconds. The radiations of the PCSS triggered by the picosecond laser and femtosecond laser pulse series illustrate that the electromagnetic pulses would have high repetition of more than 80 MHz and frequency bandwidth of DC‐6 GHz. The radiations of “lock‐on” mode of the PCSS are also analyzed here. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1118–1122, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI.10.1002/mop.22393