Agilent Technologies 8935 series e6380a manual Specifications

Overview of theTest Set’s Built-In Tools

Using the RF Tools Program

Figure 4-15 Example of an Swept Return Loss results screen

Estimating Antenna Return Loss

If you are measuring the return loss of an antenna connected to the end of a known good feed line, you can determine the approximate return loss of the antenna by subtracting twice the line loss. For example, if you measure a return loss of 24 dB and the line is known to have 2 dB loss, the estimated return loss of the antenna is 20 dB (since there is a total of 4 dB of loss from the feed line). For this estimate to be correct, the coaxial line and connectors must have a much smaller loss than the total return loss.

Specifications

•Frequency Range: 0.4-1000 MHz, 1.7-2.0 GHz

•Swept Signal Level: -54 dBm to +10 dBm

•Swept Return Loss Accuracy: +/- 2dB +/--10% of reading, for readings between 0 dB and 30 dB

96 Chapter 4

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