Transceiver design

Transceiver design

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A transceiver is a system that contains both a transmitter and a receiver. The transmitter from one transceiver sends a signal through space to the receiver of a second transceiver. After receiving the signal, the transmitter from the second transceiver sends a signal back to the receiver of the first transceiver, completing a two-way communications data link system, as shown in Figure 1.1. There are many factors to consider when designing a two-way communications link. The first one is to determine the operating frequency. Several consideration need to be evaluated to select the frequency that is going to be used.

Chapter Contents:

  • 1.1 Frequency of operation
  • 1.2 Transmitter
  • 1.2.1 Transmitted effective isotropic radiated power
  • 1.2.2 Power from the transmitter
  • Voltage and power using dB
  • 1.2.3 Transmitter component losses
  • 1.2.4 Transmitter line losses from the power amplifier to the antenna
  • 1.2.5 Transmitter antenna gain
  • 1.2.6 Transmitter antenna losses
  • 1.3 The channel
  • 1.3.1 Free-space attenuation
  • 1.3.2 Propagation losses
  • 1.3.3 Multipath losses
  • 1.4 Receiver
  • 1.4.1 Receiver antenna losses
  • 1.4.2 Receiver antenna gain
  • 1.4.3 Receiver line losses from the antenna to the LNA
  • 1.4.4 Receiver component losses
  • 1.4.5 Received signal power at the output to the LNA
  • 1.4.6 Receiver implementation loss
  • 1.4.7 Doppler effects on received signal
  • 1.4.8 Received power for establishing the signal-to-noise ratio of a system
  • 1.4.9 Received noise power
  • 1.4.10 Noise figure
  • 1.4.11 Received noise power at the detector
  • 1.4.12 Receiver bandwidth
  • 1.4.13 Received Eb/No at the detector
  • 1.4.14 Receiver coding gain
  • 1.4.15 Required Eb/No
  • 1.5 The link budget
  • 1.5.1 Spread spectrum systems
  • 1.5.2 Process gain
  • 1.5.3 Received power for establishing the signal-to-noise ratio for a spread spectrum system
  • 1.5.4 Link budget example
  • 1.5.5 Benefits of using a link budget
  • 1.6 Summary
  • 1.7 Problems
  • Further reading

Inspec keywords: data communication; radio transceivers

Other keywords: operating frequency; two-way communications data link system; receiver; transceiver design; transmitter

Subjects: Radio links and equipment

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