The figure is shows the first stage of a superheterodyne receiver. The desired input signal is at a frequency of 700 MHz. The local oscillator (L.O) frequency is 1 GHz. The mixer is an ideal multiplier with a gain independent of frequency. A band-pass filter (BPF) is used to select the Intermediate Frequency (IF) output at 300 MHz. Input Mixer BLO 8PF IF Input (a) What is the image frequency of the desired input? (b) A Low Pass Filter (LPF) can be used before the mixer to reject the image frequency. If a perfect rejection (zero transmission) of the image is desired, what type of LPF should be employed?

The figure is shows the first stage of a superheterodyne receiver. The desired input signal is at a frequency of 700 MHz. The local oscillator (L.O) frequency is 1 GHz. The mixer is an ideal multiplier with a gain independent of frequency. A band-pass filter (BPF) is used to select the Intermediate Frequency (IF) output at 300 MHz. Input Mixer BLO 8PF IF Input (a) What is the image frequency of the desired input? (b) A Low Pass Filter (LPF) can be used before the mixer to reject the image frequency. If a perfect rejection (zero transmission) of the image is desired, what type of LPF should be employed?

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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