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Problem 2. Frequency Mixers. Sketch the block diagram of a diode ring mixer with low-pass filter...

Problem 2. Frequency Mixers. Sketch the block diagram of a diode ring mixer with low-pass filter on the IF port. The low pass filter has a 3 dB cutoff frequency of 10 kHz. The Local Oscillator input is +7 dBm at 8.000 MHz. There are two input signals, one at 8.008 MHz and the other at 7.996 MHz. Use the trig identity cosacosb to calculate the frequencies of the outputs from the two input signals. Sketch the inputs and outputs of the mixer in the frequency domain. What are the output signals after the low pass filter?

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