leekpai
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IC PMB2202 IQ Modulator
Hello!
I use a IC PMB2202 Modulator by Siemens and have some problem with this device. I use only the modulation part of this device with DC control at input A-AX and B-BX. The problem is that when I use one freq. or CW freq. exciting in LO-LOX, it works good all the operating range (abot 1.5 GHz to 2.5 GHz). However, when I sweep frequency(abot 1.5 GHz to 2.0 GHz) from Network Analyzer at LO-LOX, I can't not control the phases. It has a phase jump and not stable working. I check everything and ist correct.
How can I solve this problem ?
Regards
Hello!
I use a IC PMB2202 Modulator by Siemens and have some problem with this device. I use only the modulation part of this device with DC control at input A-AX and B-BX. The problem is that when I use one freq. or CW freq. exciting in LO-LOX, it works good all the operating range (abot 1.5 GHz to 2.5 GHz). However, when I sweep frequency(abot 1.5 GHz to 2.0 GHz) from Network Analyzer at LO-LOX, I can't not control the phases. It has a phase jump and not stable working. I check everything and ist correct.
How can I solve this problem ?
Regards