TerryADS
Full Member level 2
pa output matching
Hi frieds,
We use MMIC (die) with PA integrated. Power of PA is supplied exterior, and I firstly measure the impedance (for bonding wire) and match to 50 Ohm. I hear that somebody said matching needs to be done without DC component .So I have a question: whether can i use VNA directly connect to MMIC PA output without DC decouple (My VNA: 8753E~+26dBm RF, 30VDC max) and the measure result is correct?
Another question, if I want to measure 32dBm RF signal using the same VNA, how can I measure the output impedance of PA?
Thanks,
Hi frieds,
We use MMIC (die) with PA integrated. Power of PA is supplied exterior, and I firstly measure the impedance (for bonding wire) and match to 50 Ohm. I hear that somebody said matching needs to be done without DC component .So I have a question: whether can i use VNA directly connect to MMIC PA output without DC decouple (My VNA: 8753E~+26dBm RF, 30VDC max) and the measure result is correct?
Another question, if I want to measure 32dBm RF signal using the same VNA, how can I measure the output impedance of PA?
Thanks,