Re: High power amplifier energy consumption in payload or BT
Not sure what you are asking, but are you talking about the DC Current&Voltage?
(V*I= Power). Or do you mean the Power efficiency of the PA ?
You can measure the DC power in to the PA then Measure the RF Power
(w/ a Power meter), convert the RF dBm power to Watts and divide those
numbers to see how much DC PWR is going to RF PWR.
Say you have 10V @ 1A in to a PA, and the PA puts out 30dBm! Then you convert
dBm to watts--> 30dBm = 1W
10V*1A=10W
Hi jayce3390,
The spectrum of possible PA versions & configurations is too wide_if you will hear over 20 to 40% , then its maybe nothig for you, but otherside is with your specification for us very similar:-(!...
I mean: sorry, but not enough...
K.
The key questions are:
1. How many power do you want to be sent to antenna?
20dBm?30dBm?40dBm?
2. your modulation scheme?
constant envelope modulation(MSK/FSK etc.) or linear modulation(BPSK/QPSK or even OFDM and so on)
The former one may need higher effciency but the later one need lower(or even much lower) effciency
2. The process.
GaAs/SiGe/CMOS/LDMOS? or use stand-alone commercial PA?