This chapter identifies potential EMI problems that may occur between transmitters and receivers. The emphasis in this chapter is specifically oriented toward EMI signals that are generated by potentially interfering transmitters, propagated and received via antennas, and that cause EMI in receivers associated with communication systems.

Chapter Contents:

• 3.1 Communication System EMI Problems
• 3.2 EMI Interactions between Transmitters and Receivers
• 3.3 EMC Design of Communication Systems
• 3.4 Transmitter Emission Characteristics
• 3.4.1 Fundamental Emissions
• 3.4.2 Transmitter Intermodulation
• 3.4.3 Harmonic Emission Levels
• 3.5 Receiver Susceptibility Characteristics
• 3.5.1 Co-channel Interference
• 3.5.2 Receiver Adjacent-Signal Interference
• 3.5.3 Receiver Spurious Responses
• 3.6 Antenna Radiation Characteristics
• 3.6.1 Design Frequency and Polarization
• 3.6.2 Polarization Dependence
• 3.6.3 Nondesign Frequencies
• 3.7 Propagation Effects
• 3.8 Sample EMC Assessment
• 3.8.1 Transmitter Noise
• 3.8.2 Intermodulation
• 3.8.3 Out-of-Band EMI
• 3.9 Computer EMC Analysis
• Suggested Readings: Communication Systems EMC

Inspec keywords: antennas; electromagnetic compatibility; electromagnetic interference

Other keywords: antennas; EMI signals; EMC communication systems; transmitters; EMI problems; receivers

Subjects: Electromagnetic compatibility and interference; Single antennas