AnsweredAssumed Answered

HMC966LP4E , How to measure the NF data ?

Question asked by sss on Mar 6, 2015
Latest reply on Mar 9, 2015 by Qui

Hi,all.

 

Please advice to me!

How to measure and setup for the NF data of HMC966LP4E , and recommendations ?

 

Our customer measurement setup is following,

SG - Isolator - (LO) - D.U.T - (IF) - 90deg Hyb - NF meter - Noise source - isolator - (RF) D.U.T

SG:E8257C(keysight tech)>>>LO signal

 

IF FREQ:710MHz

RF FREQ:17.5GHz - 20GHz

LO FREQ:16.79GHz - 19.29GHz>>>SG input level is +6.5dBm

RF FREQ = LO FREQ + IF FREQ(710MHz)

 

Customer measurement NF data 3.2~4.6dB, is degraded than 2.5~3.5dB typ.

 

What are the precautions when measuring the NF of HMC966LP4E?

Noise spec of SG?

Bandwidth limitation of the input or output filter?

Can you provide a specific measurement system?

 

Best Regards,

sss

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