Experimental study on effect of microwave pulse-width on detector feature

Experiments are carried out to study the sensitivity and detected waveforms for two types of detectors, WB-CD01 and 2087-6001-00, with microwave signals of pulse-width varying from 20 ns to 120 ns in a step of 10 ns. At 2.7 GHz, when the pulse-width changes from 20 ns to 120 ns, the sensitivity of WB-CD01 type is 0.5~0.7dB lower than in the case of continuous wave (CW), while it is about 1dB lower than that of 2087-6001-00 type in the CW case. At 4.1 GHz, given the pulse-width of 20 ns, the sensitivity of WB-CD01 type is about 0.2 dB higher than in the CW case, while it is almost the same as the CW case for the other given pulse-width. For all the given pulse-width at 4.1 GHz, the sensitivity of 2087-6001-00 type is almost the same as in CW case. In the cases of pulsed microwaves, an overs