N5194A矢量适配器数据表.pdf - 第9页

Page 9 Find us at www .keysight.com Sy nc hronization Mul tiple UXG agil e vector ada pt e rs can b e synch ronized togeth er with o ne UXG agile s ignal g ener at or to have co here nt outputs. T his is us eful for si m…

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1. CW power accuracy specifications are warranted from 0 to 50 ˚C. Specifications apply within ± 3 ˚C of last power alignment. Temperature compensation is

ON. If temp comp is OFF, amplitude drift will be ≤ 0.2 dB/˚C. For instruments with Option 1ED Type–N connectors, specifications apply below 18 GHz and

performance is typically degraded 0.2 dB above 18 GHz.

2. Specifications apply in vector mode only, over a power range of –5 to –85 dBm.

Minimum settable CW power

–120 dBm

Attenuator range

0 to 65 dB in 5 dB steps

Agile power linearity

Frequency Output power, dBm External LO mode, dB spec (typ) Internal LO mode, dB spec (typ)

50 MHz to 14 GHz Max specified power to –90 dBm ± 1.00 (± 0.33) ± 1.00 (± 0.34)

0 to –120 dBm ± 1.65 (± 0.41) ± 1.65 (± 0.45)

> 14 GHz to 20 GHz Max specified power to –10 dBm ± 0.80 (± 0.20) ± 0.65 (± 0.2)

–10 to –90 dBm ± 1.05 (± 0.33) ± 1.00 (± 0.27)

–10 to –120 dBm ± 1.75 (± 0.50) ± 1.85 (± 0.47)

> 20 GHz to 40 GHz Max specified power to –50 dBm ± 1.00 (± 0.50) N/A

–50 to –80 dBm ± 1.20 (± 0.60) N/A

CW power accuracy

Frequency Output power, dBm External LO, dB spec (typ) Internal LO, dB spec (typ)

50 MHz to 18 GHz +3 to –25 ± 2.5 (± 0.4) ± 2.5 (± 0.4)

200 MHz to 18 GHz < –25 to –75 ± 2.5 (± 0.4) ± 2.5 (± 0.4)

700 MHz to 18 GHz < –75 to –90 ± 2.5 (± 0.5) ± 2.5 (± 0.5)

> 18 GHz to 20 GHz +1 to –25 ± 2.5 (± 0.5) N/A

–2 to –25 N/A ± 3.0 (± 0.5)

< –25 to –75 ± 2.5 (± 0.5) ± 2.5 (± 0.5)

< –75 to –90 ± 2.5 (± 0.5) ± 3.0 (± 0.6)

> 20 GHz to 40 GHz Max specified power to –50 dBm ± 2.5 (+0.5) N/A

Resolution

0.01 dB

Maximum reverse power

½ Watt, 0 VDC

VSWR (nom)

Frequency 0 dB atten ≥ 5 dB atten

50 MHz to 18 GHz 1.6:1 1.6:1

> 18 GHz to 20 GHz 1.9:1 1.6:1

> 20 GHz to 40 GHz 2.0:1 2.0:1

Phase linearity vs. power

Frequency

50 MHz to 16 GHz 1.0 deg RMS (nom)

> 16 GHz to 40 GHz 2.0 deg RMS (nom)

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Synchronization

Multiple UXG agile vector adapters can be synchronized together with one UXG agile signal generator to have coherent outputs. This

is useful for simulating angle–of–arrival (AoA) and phased array antenna wavefronts. One of the UXG vector adapter units must be

configured as the LO controller and it is typically connected to the N5193A via a 100 pin LVDS cable.

Synchronization input connections

System Sync input Recommended external reference input for use in system environments where trigger jitter and phase stability are important. Accepts a

wide variety of input frequencies. See the Rear Panel Connectors section for connection details.

System Sync output Provides a buffered version of the signal provided to the System Sync input for use in multi–instrument systems. See the Rear Panel

Connectors section for connection details.

6 GHz input Provides high stability synchronization between multiple signal generators. This is not a general 6 GHz connection. Only the 6 GHz

synchronization output from another compatible signal generator should be connected. See the Rear Panel Connectors section for

connection details.

6 GHz output Provides high stability synchronization between multiple N519xA UXG signal generators. See the Rear Panel Connectors section for

connection details.

LO input Input port for external LO signal when operating in External LO mode. Normal input range is 8 to 20 GHz with ≥ +5 dBm (nom) power.

50 Ω (nom) impedance.

Local oscillator modes

Internal LO mode

(N5194A only)

Frequency tuning is accomplished with an internal LO signal. No external LO signal is needed in this mode, but an external 6 GHz reference

signal is still required. When using the Internal LO, the N5194A will only operate in standard vector mode and cannot be operated in wideband

vector mode. Note that performance characteristics in this data sheet are based on using the Keysight N5193A UXG agile signal generator

to provide the 6 GHz reference signal. Other signal generators can be used to provide the reference signal, but system performance will be

unspecified. Internal LO mode operation is available up to 20 GHz only. This can only be done in vector mode, not enhanced vector mode or

wideband vector mode.

External LO mode

(N5194A and N5192A)

The LO signal is provided by an external source. An external 6 GHz reference signal is also required. Note that performance characteristics

in this data sheet are based on using the Keysight UXG agile signal generator to provide both the external LO as well as the 6 GHz reference

signals. Other signal generators can be used to provide the LO and reference signals, but system performance will be unspecified. External LO

mode operates over the full frequency range of the instrument. The N5194A can be used as an External LO for the N5193A, and the N5192A

can be used as an External LO for the N5191A.

Vector operating modes

The UXG agile vector adapters can be operated in three different vector modes.

Vector mode Provides 200 MHz bandwidth operating at a 250 MSa/s rate, and is available as a standard capability in all UXG vector adapter units.

Enhanced vector mode Provides 400 MHz bandwidth operating at a 2 GSa/s rate, and is available as an optional capability on units with option BB2 installed.

Wideband vector mode Provides 1.6 GHz bandwidth operating at a 2 GSa/s rate, and is available as an optional capability on units with option BB1 installed.

Operating features

PDW streaming

– N5194A PDW streaming is a standard feature that provides agile control of most of the instrument settings with a continuous stream of PDWs transferred

from the internal SSD or an external source, such as a LAN. Each PDW has a Pulse Start Time. The scenario starts playing at time 0 (or a

specified offset time). The scenario runs until the end of the simulation (either the end of an internal file or when the external connection is closed

with LAN). The simulation can run forever from LAN if the Scenario Time reset feature is used. The streaming PDW parameters are executed

asynchronously, based on the time stamp information contained within the PDW.

– N5192A PDW streaming is an optional feature enabled by adding the N5192ST1A PDW streaming capability. The N5192ST1A enables the same PDW

streaming capabilities as described above for the N5194A.

Indexed Waveform

This feature plays arbitrary I/Q waveforms. Four markers are associated with each I/Q sample consisting of a pair of 16-bit words. PDW indexes

a waveform and those waveforms can be spaced by 240 ns.

Real-time Pulse Generation

(N5194A only)

By adding the optional N5194326A

real-time pulse generation capability, the following can be coded in the PDW and generated in real time:

unmodulated rectangular CW pulses, PSK/FSK modulated pulses, and pulses with linear chirp (up/down/triangle). This makes it possible to

continuously stream PDWs without the need to reference waveform segments in baseband generator memory. The minimum time between

real-time pulses is 240 ns.

1. N5194326A real–time pulse generation is subject to US ITAR export controls. For more information, please contact your Keysight representative.

2. The actual, usable pulse spacing is also gated by the update rate (transition time) described on pages 3 and 4 so that amplitude, phase, and frequency

are settled.

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Spectral Purity

Harmonics

1, 2

External LO mode, vector mode

Fundamental frequency Harmonic level (dBc) at ≤ –10 dBm Harmonic level (dBc) at 0 dBm or max

available power, whichever is lower

10 MHz to < 50 MHz (–32) (–32)

50 MHz to 500 MHz –30 (–33) –30 (–33)

> 500 MHz to 800 MHz –51 (–56) –52 (–56)

> 800 MHz to 4 GHz –60 (–65) –56 (–62)

> 4 GHz to 8 GHz –64 (–69) –58 (–63)

> 8 GHz to 12.5 GHz –66 (–72) –61 (–66)

> 12.5 GHz to 20 GHz –59 (–65) –53 (–58)

> 20 GHz to 22 GHz (–68) (–59)

External LO mode, wideband or enhanced vector mode (Opt BB1 or BB2)

Fundamental frequency Harmonic level (dBc) at ≤ –10 dBm Harmonic level (dBc) at 0 dBm or max

available power, whichever is lower

10 MHz to < 50 MHz (–32) (–32)

50 MHz to 2 GHz –30 (–33) –30 (–33)

> 2 GHz to 3 GHz –24 (–28) –20 (–24)

> 3 GHz to 4 GHz –31 (–35) –29 (–33)

> 4 GHz to 8 GHz –63 (–69) –58 (–63)

> 8 GHz to 12.5 GHz –63 (–68) –61 (–66)

> 12.5 GHz to 20 GHz –61 (–67) –53 (–59)

> 20 GHz to 22 GHz (–68) (–59)

Internal LO mode

, vector mode

Fundamental frequency Harmonic level (dBc) at ≤ –10 dBm Harmonic Level (dBc) at 0 dBm or max

available power, whichever is lower

10 MHz to < 50 MHz (–32) (–32)

50 MHz to 500 MHz –30 (–33) –30 (–33)

> 500 MHz to 800 MHz –51 (–56) –52 (–56)

> 800 MHz to 4 GHz –60 (–65) –56 (–62)

> 4 GHz to 8 GHz –63 (–68) –58 (–63)

> 8 GHz to 12.5 GHz –67 (–72) –61 (–66)

> 12.5 GHz to 20 GHz –58 (–64) –53 (–58)

1. Measured using a CW signal with power set to –10 dBm and 0 dBm or max specified power, whichever is lower. Performance is unspecified for harmonics

beyond the specified frequency range. Harmonic specifications are warranted from 15 to 40 ˚C.

2. The –10 dBm harmonic specifications are applicable over a 110 dB agile dynamic range.

3. Does not apply to N5192A UXG vector adapter, modified version.