Descrizione

Broadband impedance and reflection coefficient measurements
Key facts
  • Wide frequency range: 5 to 3000 MHz
  • Characteristic impedance 50 ? or 75 ?
  • High directivity
  • Good matching characteristics
  • Sturdy construction

Brief description The SWR Bridge R&S®ZRB2 is used to measure the magnitude and phase of the reflection coefficient, e.g. of filters, amplifiers, mixers or antennas. The output signal a from the generator is fed via the SWR Bridge to the device under test. Part of the signal is reflected via the SWR Bridge to the indicator, the amount depending on the reflection coefficient r of the device under test. This part b of the signal is a measure of the complex reflection coefficient r of the device under test. Intelligent indicators convert the measured reflection coefficient into other parameters, e.g. the impedance or admittance of the device under test. In this case, display is possible as magnitude and phase as well as real and imaginary quantities.
Specifications
  Percision model 50 ? Standard model 50 ? Standard model 75 ?
Frequency range 5 to 3000 MHz 5 to 2500 MHz 5 to 2000 MHz
Characteristic impedance 50 ? 50 ? 75 ?
Directivity ?46 dB up to 2 GHz, ?40 dB up to 2.5 GHz, ?34 dB up to 3 GHz ?40 dB ?40 dB
Return loss at test port ?26 dB up to 2.5 GHz, ?22 dB up to 3 GHz ?23 dB ?20 dB up to 1.5 GHz, ?18 dB up to 2 GHz
Measurement error (|r| = magnitude of measured   reflection coefficient) 0.005 + 0.05|r|2 up to 2 GHz, 0.01 + 0.05|r|2 up to 2.5 GHz, 0.02 + 0.08|r|2 up to 3 GHz 0.01 + 0.07|r|2 0.01 + 0.1|r|2 up to 1.5 GHz, 0.01 + 0.13|r|2 up to 2 GHz
Insertion loss (5 MHz) Total Input > test port Test port > output 13 dB 7 dB 6 dB 13 dB 7 dB 6 dB 14 dB 8 dB 6 dB
Power-handling capacity 0.5 W 0.5 W 0.5 W
General data
Nominal temperature range 0 to +50°C
Storage temperature range -40 to +70°C
Connectors N female
Test port connector N female or N male
Dimensions without connectors (L x W x H, mm) 72 mm ? 57 mm ? 20 mm
Connector length female 17 mm, male 19 mm
Weight 240 g
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