Agilent EXA Signal Analyzer

Power Suite Measurements

n.3GPP requires the use of a root-raised-cosine filter in evaluating the ACLR of a device. The accuracy of the passband shape of the filter is not specified in standards, nor is any method of evaluating that accuracy. This footnote discusses the performance of the filter in this instru- ment. The effect of the RRC filter and the effect of the RBW used in the measurement interact. The analyzer compensates the shape of the RRC filter to accommodate the RBW filter. The effectiveness of this compensation is summarized in three ways:

−White noise in Adj Ch: The compensated RRC filter nominally has no errors if the adjacent channel has a spectrum that is flat across its width.

−TOI−induced spectrum: If the spectrum is due to third−order intermodulation, it has a dis- tinctive shape. The computed errors of the compensated filter are −0.001 dB for the 100 kHz RBW used for UE testing with the IBW method. It is also −0.001 dB for the 390 kHz RBW used with the Fast method, and 0.000 dB for the 27 kHz RBW filter used for BTS testing with the Filtered IBW method. The worst error for RBWs between these extremes is 0.05 dB for a 330 kHz RBW filter.

−rms CW error: This error is a measure of the error in measuring a CW−like

spurious component. It is evaluated by computing the root of the mean of the square of the power error across all frequencies within the adjacent channel. The computed rms error of the compensated filter is 0.012 dB for the 100 kHz RBW used for UE testing with the IBW method. It is 0.034 dB for the 390 kHz RBW used with the Fast method and 0.000 dB for the 27 kHz RBW filter used for BTS testing. The worst error for RBWs between 27 kHz and

470 kHz is 0.057 dB for a 430 kHz RBW filter-like spurious component. It is evaluated by computing the root of the mean of the square of the power error across all frequencies within the adjacent channel. The computed rms error of the compensated filter is 0.012 dB for the 100 kHz RBW used for UE testing with the IBW method. It is 0.034 dB for the 390 kHz RBW used with the Fast method and 0.000 dB for the 27 kHz RBW filter used for BTS testing. The worst error for RBWs between 27 kHz and 470 kHz is 0.057 dB for a 430 kHz RBW filter.

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Chapter 1

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Agilent Technologies N9010A specifications Power Suite Measurements
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N9010A specifications

Agilent Technologies, now known as Keysight Technologies, offers a wide range of sophisticated measurement instruments, one of which is the N9010A, a high-performance signal analyzer. The N9010A is a versatile tool designed to meet the needs of engineers and researchers dealing with complex signal generation and analysis.

The N9010A signal analyzer is built on the X-Series signal analysis platform, making it an outstanding choice for various applications, including wireless communication, radar, and electronic warfare. Its main features include an extensive frequency range from 9 kHz to 6 GHz, which provides users with the capability to analyze a diverse array of signals.

One of the defining characteristics of the N9010A is its high dynamic range and sensitivity. The instrument has been engineered to ensure that weak signals can be accurately detected in the presence of strong interfering signals. This quality is crucial for applications such as spectrum monitoring and interference analysis.

Equipped with advanced digital signal processing techniques, the N9010A allows for real-time analysis of complex signals. The analyzer supports various modulation techniques and can perform measurements on frequency, time, and phase to provide a comprehensive view of signal performance. Users can leverage its abilities to analyze a wide range of formats including LTE, Wi-Fi, and many others.

Another significant feature of the N9010A is its flexibility. The instrument includes various software options and measurement applications that can be configured to meet specific testing requirements. This adaptability is essential for engineers who need to stay current with industry developments and evolving technologies.

User-friendliness is also a hallmark of the N9010A. The device features an intuitive interface that simplifies the navigation process, making it easier for users to set up tests and perform analyses with reduced training time.

Additionally, the N9010A can be integrated into a broader test environment, allowing for seamless operation within automated measurement systems. This capability enhances productivity and efficiency in design validation and compliance testing.

In summary, the Agilent Technologies N9010A signal analyzer combines advanced technology, high performance, and user-friendly features. Its ability to handle a wide range of applications makes it an essential tool in the toolbox of modern engineers and researchers working in signal analysis, making it a valuable investment in the pursuit of technological advancements.
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