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Thanks for the advice. Would any input power value do, or is there a specific range that should be used?
Also, any tips for OIP3, image rejection ratio, or LO to RF leakage? Thanks a bunch!
Hi, I am designing a mixer for a bluetooth radio transmitter for a school project. I am having trouble figuring out how to run simulations for the following specs that I have to meet.
Gain = 0dB
Do I just connect one port at input and one port at output and use sp analysis to measure s21?
OIP3...
i mean transistor sizing as in what I should be gm value and such should I try to achieve. For the VCO i sized the transistor so that the gm value was greater than 1/Rp in order to have oscillation.
I'm not sure why but my advisor said we did not need to do input matching.
Hi, I need to design a power amplifier for a bluetooth transmitter. I have designed a VCO and there are simple calculations that can be made for the oscillator to achieve all the desired specifications such as sizing the transistors such that gm is larger than 1/Rp so that the gain= gmRp > 1. So...
Hi, I am supposed to design a transmitter for my project. I have already pretty much finished the VCO and Power Amplifier and now need to build the Mixer. My professor said a Passive Quad-FET would be a good architecture to build. But I am confused on how the schematic for this looks. I keep...
I am designing a power amplifier for bluetooth applications. I need to get +3dbm output p1db and 0dbm output power. What are some keys things I need to pay attention to in order to achieve both of these? Right now I just have an input port connected to a series inductor and shunt cap at the...
So I am just trying to build the power amplifier on its own for now using the class A topology. I am not sure how to run output power and output p1db simulations on Cadence ADE. I was able to run output p1db but I am not sure if my setup is correct. I had just one port, which was placed at the...
Hi, I need to design a power amplifier for a RF transmitter and I am not sure how to start. I have the VCO built and I was told that the output of the VCO needs to go to the power amplifier. I was also told that a class AB amplifier is a good topology but I am not sure how to build this. I...
I have the VCO schematic above. I need a tuning frequency of 2.35G to 2.55G and phase noise to be below -115dbc at 1MHz. Right now I have the Phase Noise at -111dbc. I read somewhere that you can add a capacitor to the drain of the tail transistor to short the AC noise and then add an inductor...
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