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Rohde & Schwarz – NRP-Z11 8 GHz Power Sensor

Rohde & Schwarz – NRP-Z11 8 GHz Power Sensor

Description

The NRP-Z11 power sensor fuses multiple-path architecture, multiple-diode technology and a simultaneously scanning multichannel measurement system into a unique high-performance concept. Multiple-path architecture is the combination of two or three diode detectors to obtain a large dynamic range for modulated signals. This is achieved by operating each detector exclusively in the square-law region and by using only the optimally driven detectors for the measurement. Multiple diodes comprise several zero-bias Schottky diodes connected in series and integrated on one chip. When used in an RF detector, they expand its square-law region, because the measurement voltage is split among several diodes, so that each one is driven less, while at the same time the detected voltages of the individual diodes are added together. Rohde & Schwarz’s multiple-path architecture (patent pending) is characterized by the following features: – 3 signal paths, each fitted with triple diodes – 6 dB wide overlap ranges, smooth transitions – Simultaneous scanning and analysis – Chopper stabilization of signal paths for recurring signals The NPR-Z11 offers high signal/noise ratio throughout, low modulation effect, negligible delays and discontinuities when switching signal paths, as well as the ability to perform a time-domain analysis of the test signal within the available video bandwidth. As a consequence, these sensors have the following advantages: – No restrictions on the RF bandwidth of the test signal – Wider dynamic range As a result, it is already possible today to analyze extremely broadband signals, such as are planned for wireless LAN or will be created by combining several carriers in accordance with 3GPP.

 

Key Facts

  • Measurement range: -60 dBm to +20 dBm (1 nW to 100 mW)
  • Frequency range: 50 MHz to 18 GHz (50 MHz to 500 MHz with reduced video bandwidth)
  • N connector
  • Operation with R&S®NRP2 base unit or via USB on a Laptop/PC
  • Ideal for radar applications
  • 30 MHz video bandwidth
  • Rise/fall time <13 ns
  • > 9500 measurements/s (buffered mode)
  • Automatic pulse analysis
  • Statistical analysis
  • High resolution mode
  • Trigger master mode

Specifications

 

Wideband power sensor
Frequency range Power measurement
range; maximum
input power
Impedance matching
(SWR)
Rise time,
video BW
Uncertainty for
power measurements
at +20 °C to +25 °C
(1) absolute (in dB)
(2) relative (in dB)
R&S®NRP-Z81, N connector
50 MHz to 18 GHz 1 nW to 100 mW
(–60 dBm to +20 dBm)
max. 200 mW (AVG)/
1 W (PK, 1 μs)
50 MHz to 2.4 GHz: <1.16
> 2.4 GHz to 8.0 GHz: <1.20
> 8.0 GHz to 18.0 GHz: <1.25
<13 ns,
>30 MHz
(1) 0.130 to 0.150
(2) 0.039 to 0.148
R&S®NRP-Z85, 2.92 mm connector
50 MHz to 40 GHz 1 nW to 100 mW
(–60 dBm to +20 dBm)
max. 200 mW (AVG)/
1 W (PK, 1 μs)
50 MHz to 2.4 GHz: <1.16
> 2.4 GHz to 8.0 GHz: <1.20
>8.0 GHz to 18.0 GHz: <1.25
>18.0 GHz to 26.5 GHz: <1.30
>26.5 GHz to 40.0 GHz: <1.35
<13 ns,
>30 MHz
(1) 0.130 to 0.180
(2) 0.039 to 0.165
R&S®NRP-Z86, 2.4 mm connector
50 MHz to 40 GHz 1 nW to 100 mW
(–60 dBm to +20 dBm)
max. 200 mW (AVG)/
1 W (PK, 1 μs)
50 MHz to 2.4 GHz: <1.16
> 2.4 GHz to 8.0 GHz: <1.20
>8.0 GHz to 18.0 GHz: <1.25
>18.0 GHz to 26.5 GHz: <1.30
>26.5 GHz to 40.0 GHz: <1.35
<13 ns,
>30 MHz
(1) 0.130 to 0.180
(2) 0.039 to 0.165
R&S®NRP-Z86 var 44, 2.4 mm connector
50 MHz to 44 GHz 1 nW to 100 mW
(–60 dBm to +20 dBm)
max. 200 mW (AVG)/
1 W (PK, 1 μs)
50 MHz to 2.4 GHz: <1.16
> 2.4 GHz to 8.0 GHz: <1.20
>8.0 GHz to 18.0 GHz: <1.25
>18.0 GHz to 26.5 GHz: <1.30
>26.5 GHz to 40.0 GHz: <1.35
>40.0 GHz to 44.0 GHz: <1.40
<13 ns,
>30 MHz
(1) 0.130 to 0.190
(2) 0.039 to 0.165

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