A uniplanar picosecond impulse generator based on MESFET and SRD

Abstract

AbstractA new compact, low‐cost uniplanar impulse generator using coplanar waveguide structure has been designed, built, and tested. This uniplanar circuit consists of three functions: initial impulse generation, impulse amplification, and impulse compression, which are realized by a step‐recovery diode and two‐stage GaAs MESFET circuits, respectively. The impulse response has an amplitude of 2.3 V and a half‐power pulse width of 115 pS. It has larger amplitude and narrower pulse width than the impulse generated by the SRD circuit alone. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 39: 470–472, 2003