Model and simulation of a new ultra-narrow trigger frequency alterable pulse generator |
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Authors: | Yun-feng Yang Zhen-xin Cao Zhan Ye Wen-bin Dou Hong-yan Su |
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Institution: | [1]State Key Laboratory of Millimeter Waves, Southeast-University, Nanjing 210096, China [2]National Key Laboratory of Millimeter Wave System, Beijing 100039, China |
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Abstract: | Two new kinds of ultra-narrow trigger frequency alterable picosecond pulse generator are presented. One can produce positive
pulses and the other can produce negative pulses. The two pulse generators are subdivided into three parts: signal driving
circuit, differentiator network and pulse shaping circuit. The pulse shaping circuit is made of step recovery diode (SRD)
and short-circuit microstrip line. A positive pulse with width of 54 ps (50%–50%), rising time of 30 ps (10%–90%) and falling
time of 32 ps (90%–10%), and a negative pulse with width of 54 ps (50%–50%), rising time of 30 ps (90%–10%) and falling time
of 30 ps (10%–90%) are achieved in simulation. All of the components are ready-made and inexpensive. They can be applied in
ultra-wideband (UWB) communication system, such as transmitters and receivers. |
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Keywords: | |
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