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Low Noise amplifiers is one that doesn't adds a lot of white noise (Low Noise figure)
Low Phase Noise is one that doesn't have a lot of impact on the phase of the input signal due to non-linearity i.e. AM-PM
Re: How we can Decide for set BB gain,IF gain,RF gain???
Hi,
For the transmitter part:
1. You should set most of the gain on BB, since any noise that will be added in last stages, will not be amplified too much, increasing the Noise Floor.
2. For the receiver it is just the opposite, consider...
You can use any substrate you want as long as you satisfied with the Er and TanD of the material. It is all about trade-offs, if you want higher BW you should choose higher TanD, but then you will have more dielectric losses. Choosing higher Er will give you smaller structures, but then you will...
Transmission lines are very narrow band, so if you need higher BW you should go with the LC circuit. Regarding the units, you didn't mentioned the software you are suing. In ADS you can change your project parameters from metric to imperial and visa versa or to convert it with calculator...
Well, if you noticed there are different types of feeding shown on these pictures. Usually, once the TL becomes 50 Ohm the lengths is not critical. Anyway, you need to simulate in 3D the whole structure.
You should look for example at your radiation and cross polarization patterns , efficiency, gain, return loss. Make sure all these and other parameter are in spec over your frequency range.
The P1dB is when your amplifier is starts to compress the output signal. Think about the information that you have in the amplitude of your signal (AM or OOK, or QAM modulations), once this signal is compressed you start to loos information and thus the SNR is degrading. It is happening also...
Hi,
It looks like you can squeeze 15W from this device at the required frequencies.
You should ask for S-parameters from the vendor and check stability and matching.
R.
Hi,
Definitely, a good RF&MW engineer should be very good at soldering. Of coarse, for the small components (0201, 0402, 0603) you should use microscope.
R.
The formula is for converting Integrated Phase Noise from deg to DB. So, my question is, if this formula is also applies to Pulse to Pulse stability, if not does anyone know the right one?
Again, I'm not asking for the meaning and the purpose this measurement, its just that there are 2 types of...
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