Use of N-th resonances of microstrip band-pass filter?
时间：04-05
整理：3721RD
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What about this:
suppose we want to filter out fundamental F0, and get only 2*F0 harmonic. Classical: We can make filter at 2*F0.
But also we can make filter at 2*F0 / 3, and use it's third resonance.
Example:
LO = 5GHz, second harmonic = 10GHz. Instead of doing 10GHz band-pass,
We make filter for 10GHz/3 = 3.33GHz and tune it in such way, that it's third maximum is around 10GHz.
I dout it can be useful at 47GHz and higher, where super experienced people work...
So, how is this idea?
suppose we want to filter out fundamental F0, and get only 2*F0 harmonic. Classical: We can make filter at 2*F0.
But also we can make filter at 2*F0 / 3, and use it's third resonance.
Example:
LO = 5GHz, second harmonic = 10GHz. Instead of doing 10GHz band-pass,
We make filter for 10GHz/3 = 3.33GHz and tune it in such way, that it's third maximum is around 10GHz.
I dout it can be useful at 47GHz and higher, where super experienced people work...
So, how is this idea?
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