R&S®ZRC SWR bridge, 40 kHz to 4 GHz, 50 Ω

Measurement of reflection coefficient from 40 kHz to 4 GHz

To R&S®ZVT Vector Network Analyzers

Overview
features & benefits

Key facts

Very wide frequency range
High directivity
Good matching characteristics
Rugged design
Calibration accessories included
Characteristic impedance 50 Ω or 75 Ω (up to 2.5 GHz)

Brief description

Specifications

Characteristic impedance	50 Ω	75 Ω
Frequency range	40 kHz to 4 GHz	40 kHz to 2.5 GHz

Key facts

Very wide frequency range
High directivity
Good matching characteristics
Rugged design
Calibration accessories included
Characteristic impedance 50 Ω or 75 Ω (up to 2.5 GHz)

Brief description

The SWR Bridge R&S^®ZRC is used to measure the magnitude and phase of the reflection coefficient of RF circuits and components such as filters, amplifiers, mixers and antennas. The output signal from the test generator is applied to the DUT via the SWR bridge. Depending on the reflection coefficient r of the DUT, part of the signal is reflected to the bridge and then routed to the receiver, where it is detected and displayed.

A shopen (short circuit/open circuit) and a match that can be used for calibration and verification of nominal data are part of the equipment supplied. A connector adapter that can directly connect the bridge to a test generator without the use of cables is also supplied.

Specifications

Characteristic impedance	50 Ω	75 Ω
Frequency range	40 kHz to 4 GHz	40 kHz to 2.5 GHz
Directivity up to 2.5 GHz 2.5 GHz to 3 GHz 3 GHz to 4 GHz	≥40 dB ≥40 dB ≥36 dB	≥40 dB — —
Return loss at test port up to 400 kHz 400 kHz to 2.5 GHz 2.5 GHz to 3 GHz 3 GHz to 4 GHz	≥12 dB + 11 dB · log (f/40 kHz) ≥23 dB ≥23 dB ≥20 dB	≥8 dB + 12 dB · log (f/40 kHz) ≥20 dB — —
Measurement error up to 400 kHz 400 kHz to 2.5 GHz 2.5 GHz to 3 GHz 3 GHz to 4 GHz	≤0.01 + s · \|r\|² ≤0.01 + 0.07 · \|r\|² ≤0.01 + 0.07 · \|r\|² ≤0.016 + 0.01 · \|r\|²	≤0.01 + s · \|r\|² ≤0.01 + 0.1 · \|r\|² — —
Insertion loss at 5 MHz Total Input → test port Test port → output	13 dB 7 dB 6 dB
General data
Power-handling capacity		0.5 W
Operating temperature range		0°C to +55°C
Storage temperature range		–40°C to +70°C
Connectors		N female
Test port connector		N female or N male
Dimensions without connectors		72 mm × 77 mm × 23 mm
Length of connectors		female 17 mm, male 19 mm
Weight		340 g
Dimensions of case		264 mm × 172 mm × 48 mm
Total weight with accessories and case		980 g

s = reflection coefficient at test port (s = 10^{–a/20 dB})

a = return loss at test port

|r| = magnitude of reflection coefficient measured

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