wccheng
Full Member level 5
Dear all,
Now, I simulate NF of a receiver which is consisted single-ended input of Tx/Rx + LNA (which give out the differential output) + down-conversion mixer (IF is 1G-1.6GHz, differential output). It gives a strange NF value to me. As I simulated the NF of the Tx/Rx switch + LNA, it gives NF = 4.5dB. If I simulated included the down-conversion mixer together, the NF value would give me 14dB. It is extremely high in value. Moreover, it is un-resonable. If I plotted the NF(double-side band), it would give a 4.9dB around. Actually, what is my simulation setting problem? Or, what is my problem in simulation. Could anyone give me suggestion?
Thanks
wccheng
Now, I simulate NF of a receiver which is consisted single-ended input of Tx/Rx + LNA (which give out the differential output) + down-conversion mixer (IF is 1G-1.6GHz, differential output). It gives a strange NF value to me. As I simulated the NF of the Tx/Rx switch + LNA, it gives NF = 4.5dB. If I simulated included the down-conversion mixer together, the NF value would give me 14dB. It is extremely high in value. Moreover, it is un-resonable. If I plotted the NF(double-side band), it would give a 4.9dB around. Actually, what is my simulation setting problem? Or, what is my problem in simulation. Could anyone give me suggestion?
Thanks
wccheng