Paradise RA 5785 manual Spurious, Input Return Loss, Output Return Loss, 208143 REV

5.1.2 Spurious

Spurious signals are undesirable byproducts of amplifiers caused by nonlinearities within the amplifier and other system level components such as switch mode power supplies. These unwanted signals cause signal management problems in system applications. Out of band spurious signals cause interference to other pieces of equipment. See Figure 5-1, Item [2].

5.1.3 Input Return Loss

The input return loss is measured in all production amplifiers. This is a measure of how closely the amplifier is matched to its characteristic impedance. The input impedance of the amplifier is a nominal 50Ω. See Figure 5-2, Item [1].

5.1.4 Output Return Loss

The output return loss is measured in all production amplifiers. This is a measure of how closely the amplifier is matched to its characteristic impedance. The output impedance of the amplifier is matched to the waveguide complex impedance. See Figure 5-2, Item [2].

1 3

2 4

Figure 5-2: Return Loss, Intermodulation and Phase Noise Data

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