Chapter 3 am receivers

Topics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Demodulator ,[object Object],[object Object],[object Object],Figure 3.1 Receiver Block Diagram RF Section IF Section Demodulator AF Stage

AM DEMODULATOR ,[object Object],[object Object],[object Object],[object Object],[object Object],Figure 3.2 Envelope detection of a conventional AM signal

AM Demodulation ,[object Object],[object Object],[object Object],[object Object],[object Object],Figure 3.3 Product Detector for AM and SSB

Demodulator Circuit ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Figure 3.4: Diode Demodulator Figure 3.5: Transistor Demodulator ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Process in a Receiver ,[object Object],[object Object],[object Object],Fig. 3.6 Simple block diagram of a receiver

RECEIVER PARAMETERS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Selectivity ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Example 3.1 ,[object Object],[object Object],[object Object],[object Object],[object Object]

Answer Eg. 3.1 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],Sensitivity

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Bandwidth Improvement Factor

Dynamic Range ,[object Object],[object Object],[object Object],[object Object]

FIGURE 3.7 Linear gain, 1-dB compression point, and third-order intercept distortion for a typical amplifier

Fidelity ,[object Object],[object Object]

Insertion Loss ,[object Object],[object Object],[object Object]

Tuned Radio Frequency Receiver ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Figure 3.8 Basic TRF receiver block diagram, showing simple structure.

FIGURE 3.9 Noncoherent tuned radio frequency receiver block diagram

TRF cont… ,[object Object],[object Object],[object Object],[object Object],[object Object]

Superheterodyne Receiver ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

FIGURE 3.10 AM superheterodyne receiver block diagram

Stages in Superhets ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

RF Stage and Characteristics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Path & Frequency Changing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],f i ,f o f o + f i f o – f i or f i - f o f o f i

Intermediate Frequency & IF Amplifiers

IF & IF Amplifiers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Fig. 3.12 High-side Injection Fig. 3.13 Low-side Injection

[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Example 3.2

Detector And Automatic Gain Controller

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],Cont..

Figure 3.14 Automatic Gain Control

Chapter 3 am receivers

Recommended

Recommended

More Related Content

What's hot

What's hot (20)

Similar to Chapter 3 am receivers

Similar to Chapter 3 am receivers (20)

More from mkazree

More from mkazree (20)

Recently uploaded

Recently uploaded (20)

Chapter 3 am receivers