安捷伦N9010A EXA信号分析仪规格指南

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"安捷伦N9010-90025手册是关于Agilent X-Series信号分析仪N9010A的详细规格指南，由安捷伦科技公司出版，包含了从2007年到2009年的信息。手册禁止未经授权的复制或翻译，遵循美国和国际版权法。此手册编号N9010-90025，取代了之前的N9010-90018版，印刷日期为2009年9月，由美国安捷伦科技公司印刷。手册中的内容‘按原样’提供，不作任何明示或暗示的保证，包括但不限于对商品性和适用性的保修。" 正文：安捷伦N9010A EXA信号分析仪是安捷伦科技公司的一款高性能信号分析设备，属于X系列仪器的一部分。这个系列的分析仪专为满足现代电子和无线通信领域对高精度、宽频率范围和快速测量的需求而设计。N9010A提供了全面的技术指标和参考数据，以帮助工程师和研究人员进行精确的信号分析。手册内容可能包括以下几个主要部分： 1. **产品概述**：介绍N9010A的基本特性，如频率范围、动态范围、分辨率带宽、测量速度等，以及它在无线通信测试、半导体器件表征、航空航天与国防应用等方面的用途。 2. **技术规格**：详细列出N9010A的各项技术参数，如频率范围（可能覆盖从几赫兹到几十吉赫兹）、灵敏度、相位噪声、幅度精度等，这些数据对于理解和优化测量结果至关重要。 3. **功能特性**：可能包括高级测量功能，如实时频谱分析、高级解调能力、猝发捕获和分析、高级扫描模式等，这些都是现代信号分析仪的重要组成部分。 4. **接口与控制**：介绍如何通过 GPIB (General Purpose Interface Bus) 和 VISA (Virtual Instrument Software Architecture) 进行远程控制和自动化测试，这对于实验室集成和自动化测试系统特别有用。 5. **操作指南**：提供详细的操作步骤和设置说明，帮助用户正确使用和配置N9010A，包括校准、设置测量参数、解读测量结果等。 6. **故障排查**：列出可能遇到的问题及解决方法，帮助用户快速诊断并解决分析仪的性能问题。 7. **安全注意事项**：强调在操作和维护设备时应遵守的安全规定，以防止设备损坏和人员受伤。 8. **保修信息**：手册中提到，安捷伦提供的内容“按原样”提供，不包含任何明示或暗示的保修，用户在使用过程中需注意设备的维护和保养。安捷伦N9010-90025手册是N9010A EXA信号分析仪的重要参考资料，为用户提供了全面的技术支持和操作指导，确保了设备的有效利用和准确测量。

16 Chapter 1

Agilent EXA Signal Analyzer

Frequency and Time

a. In the band overlap regions, for example, 3.5 to 3.6 GHz, the analyzer may use either band for

measurements, in this example Band 0 or Band 1. The analyzer gives preference to the band

with the better overall specifications (which is the lower numbered band for all frequencies

below 26 GHz), but will choose the other band if doing so is necessary to achieve a sweep

having minimum band crossings. For example, with CF = 3.58 GHz, with a span of 40 MHz

or less, the analyzer uses Band 0, because the stop frequency is 3.6 GHz or less, allowing a

span without band crossings in the preferred band. If the span is between 40 and 160 MHz,

the analyzer uses Band 1, because the start frequency is above 3.5 GHz, allowing the sweep to

be done without a band crossing in Band 1, though the stop frequency is above 3.6 GHz, pre-

venting a Band 0 sweep without band crossing. With a span greater than 160 MHz, a band

crossing will be required: the analyzer sweeps up to 3.6 GHz in Band 0; then executes a band

crossing and continues the sweep in Band 1.

Specifications are given separately for each band in the band overlap regions. One of these

specifications is for the preferred band, and one for the alternate band. Continuing with the

example from the previous paragraph (3.58 GHz), the preferred band is band 0 (indicated as

frequencies under 3.6 GHz) and the alternate band is band 1 (3.5 to 8.4 GHz). The specifica-

tions for the preferred band are warranted. The specifications for the alternate band are not

warranted in the band overlap region, but performance is nominally the same as those war-

ranted specifications in the rest of the band. Again, in this example, consider a signal at 3.58

GHz. If the sweep has been configured so that the signal at 3.58 GHz is measured in Band 1,

the analysis behavior is nominally as stated in the Band 1 specification line (3.5 – 8.4 GHz)

but is not warranted. If warranted performance is necessary for this signal, the sweep should

be reconfigured so that analysis occurs in Band 0. Another way to express this situation in this

example Band 0/Band 1 crossing is this: The specifications given in the “Specifications” col-

umn which are described as “3.5 to 8.4 GHz” represent nominal performance from 3.5 to 3.6

GHz, and warranted performance from 3.6 to 8.4 GHz.

b. N is the LO multiplication factor. For negative mixing modes (as indicated by the “−” in the

“Harmonic Mixing Mode” column), the desired 1st LO harmonic is higher than the tuned fre-

quency by the 1st IF (5.1225 GHz for band 0, 322.5 MHz for all other bands).

Description Specifications Supplemental Information

Standard Frequency Reference

Accuracy ±[(time since last adjustment × aging

rate) + temperature stability +

calibration accuracy

]

Temperature Stability

20 to 30 °C

±2 × 10

−6

5 to 50 °C

±2 × 10

−6

Aging Rate

±1 × 10

−6

/year

20 Chapter 1

Agilent EXA Signal Analyzer

Frequency and Time

Description Specifications Supplemental

Information

Frequency Readout Accuracy ±(marker freq. × freq. ref. accy. + 0.25%

× span + 5% × RBW

+ 2 Hz + 0.5 ×

horizontal resolution

)

a. The warranted performance is only the sum of all errors under autocoupled conditions. Under

non-autocoupled conditions, the frequency readout accuracy will nominally meet the specifica-

tion equation, except for conditions in which the RBW term dominates, as explained in exam-

ples below. The nominal RBW contribution to frequency readout accuracy is 2% of RBW for

RBWs from 1 Hz to 390 kHz, 4% of RBW from 430 kHz through 3 MHz (the widest autocou-

pled RBW), and 30% of RBW for the (manually selected) 4, 5, 6 and 8 MHz RBWs.

First example: a 120 MHz span, with autocoupled RBW. The autocoupled ratio of span to

RBW is 106:1, so the RBW selected is 1.1 MHz. The 5% × RBW term contributes only 55 kHz

to the total frequency readout accuracy, compared to 300 kHz for the 0.25% × span term, for a

total of 355 kHz. In this example, if an instrument had an unusually high RBW centering error

of 7% of RBW (77 kHz) and a span error of 0.20% of span (240 kHz), the total actual error

(317 kHz) would still meet the computed specification (355 kHz).

Second example: a 20 MHz span, with a 4 MHz RBW. The specification equation does not

apply because the Span: RBW ratio is not autocoupled. If the equation did apply, it would

allow 50 kHz of error (0.25%) due to the span and 200 kHz error (5%) due to the RBW. For

this non-autocoupled RBW, the RBW error is nominally 30%, or 1200 kHz.

b. Horizontal resolution is due to the marker reading out one of the trace points. The points are

spaced by span/(Npts - 1), where Npts is the number of sweep points. For example, with the

factory preset value of 1001 sweep points, the horizontal resolution is span/1000. However,

there is an exception: When both the detector mode is “normal” and the span > 0.25 × (Npts -

1) × RBW, peaks can occur only in even-numbered points, so the effective horizontal resolu-

tion becomes doubled, or span/500 for the factory preset case. When the RBW is autocoupled

and there are 1001 sweep points, that exception occurs only for spans > 750 MHz

Single detector only

c. Specifications apply to traces in two cases: when all active traces use the same detector, and to

any trace that uses the peak detector. When multiple simultaneous detectors are in use, addi-

tional errors of 0.5, 1.0 or 1.5 display points will occur in some detectors, depending on the

combination of detectors in use. In one example, with positive peak, negative peak and average

detection, there is an additional error only in the average detection trace, which shifts the

apparent signal position left by 0.5 display points.

Example for EMC

±0.0032% (nominal)

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