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how to design vco
I don‘t think ADS is a qualified software to design VCO。sometimes ，ADS makes me mad！I don't know where to put the oscport! Its result of phase noise never can be believed。in my view，ansoft designer is a good choice，Rohde, Ulrich L. is famed for designing VCO。so his books is...
abcd matrix microwave
take an amplifier as an examle, according to the meaning of S parameter. Sx=[S11,S12;S21,S22]
you can also take an inversed amplier as a nomal amplifier ,port2 becomes to port1 and port1 becomes port2，so change 2 to 1 and change 1 to 2 in S parameter matrix will do， i...
ENV is a better choice to calculate transient response because it's faster than transient simulation.
if u want to optimize your circuit,HB is a better chioce,HB can calculate circuit's stationary response. i have designed a CMOS detector to detector to demodulate RFID input signal. it works...
buffer amplifer
please give me some advice on how to design VCO buffer.i desined a 4~8GHz VCO without buffer desined in 2um HBT process.,it works well,but I need a 4~8GHz VCO buffer.is a attenuator needed? i don't think insert a attenuator between VCO and the buffer is a good idea in MMIC,is...
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