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First of all, my problem is about using spectrum analyzer for measuring uwb signal and I am not sure whether it is a right place for my question. If not, please notify me.
I use a handheld spectrum analyzer to measure a antenna output of a uwb transceiver. In fact, this is RTU7010...
I have got a altera stratix II dsp board and built a nios softcore cpu inside. I try to drive the fpga using a clock from a external hardware. My problem is the clock form external hardware cannot drive the PLL inside the fpga.
When I monitor the clock to be input to fpga, the duty cycle is...
I think I can get the idea from the article. I have ordered the components. Are you a russian girl?
Added after 4 minutes:
I have not tried to modify the value of the input cap. to 1nF. Let try next week. I have deleted the short circuit stub and found the...
Hi all experts,
I have been asking for help of pulse generator using Step Recovery Diode(SRD). Recently, I make a circuit but the output amplitude is very small(30mV pk-pk). Which part is wrong? I attach the circuit diagram and the output waveform here. The input signal is...
comb generator schematic
thanks for your comment. I follow the circuit found in HP applicatio note 918. In the circuit I follow, it does not have any inductor. May be I do not fully understand the circuit configuration. It must be something worng but I still wonder which part brings...
srd pulse generator
This is ttse7 again. Sorry I keep asking the same type of question here. I plan to make a short pulse with 0.5ns pulse width. I follow the HP application note 918 and build with lump elements, the SRD is from M-pulse, MP4023. The final result is that the pulse...
sorry to whom have answered my question and I am very grateful to your help.
I forget to mention that the peak voltages of the square wave is +5V and -5V. The usage of this square wave is to drive a Step Recovery Diode.
Thanks for your answer again.
I have a Step Recovery diode with the following parameter:
Which component should I use to model such device since there is no exact SRD model in ADS2005A.