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hi
anybody can please explain me why this LO signal is given with this arrangement, what is the purpose of VCVS and at IF port also dc port is connected with 50 ohm value and again using VCVS. here is the figure of test bench
hi
i have designed mixer using current bleeding. in this method we are decreasing current through LO stage to decrease noise by directly injecting current in to RF stage , but this will also reduce current of load resistor than how gain increases because gain = 2/Pi (gm.RL) please explain...
hi
i have designed RF mixer, for Biasing purpose i have used simple voltage devider arrangement using two PMOS is it Ok? or some biasing network need to be design? image is attached here with, in some literature i have seen Resistance is connected between biasing terminal & gate of MOSFET...
hi i m designing RF mixer in cadence which resistor, capacitor, inductor etc should be used normal(given in analog lab library) or given in tsmc 0.18 library.
thank u BigBoss for your reply
that means if i m measuring input impedance of mixer at port using PSP in cadence & RF port is suppose port no. 1 than ZM1 will give me input impedance of circuit....is it right?
so it will give me impedance of single input of mixer other will be same because it...
hi
thank u edaboard members for helping me a lot...
i m simulating gilbert mixer for finding its input impedance i tried it using s-parameter in cadence but the test bench i used have a balun at RF port so while measuring Z11, i think it gives input impedance at single ended input of balun but...
voltage gain of gilbert mixer is of 10dB, it is voltage gain but in some literature they convert it using dB = 10log(gain) rather than using 20log(gain)
hi
i have designed down conversion mixer it isolation shows negative results(between -65 to -70)
many papers i have seen they consider it as positive means 65db isolation here one paper image link is attached
https://obrazki.elektroda.pl/2197191600_1431599923.jpg
please help
no no in two tone analysis for calculating iip3 in mixer two input tone one is RF(w1)& second is very close to RF(w2) is applied together with LO signal. So output will contain (2*w1-w2)-Lo & (2*w2-w1)-LO. If i m applying 3.48GHz LO signal,i need to plot spectrum of all possible harmonics. i.e...
ya PSS is giving but in two tone we have to apply RF, LO together with second tone. so if i m using only pss than i cant apply second tone so for that i m doing qpas analysis , but output spectrum with this 3d oder harmonic together with other harmonics is not generated
hi
i m designing mixer for that i need to plot spectrum of two tone analysis(3rd order products).i want to see the 3rd order harmonics with desired signal in frequency domain in cadence spectre please help
hi
i m have designed gilbert mixer now i m trying to find its input impedance. i have used single to differential network (not balun) for Rf and LO port. now how input impedance is measured i m working in cadence spectre. anyone have some idea please reply me.
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