Chapter 7

 

 

System Description

7-1

INTRODUCTION

This chapter provides a brief overview of the functional assemblies

 

 

and major parts that comprise a typical Series 373XXA VNA system.

 

 

It also briefly describes the operation of each major assembly.

7-2

SYSTEM OVERVIEW

Series 373XXA Vector Network Analyzers are ratio measurement sys-

 

 

tems used to measure complex vector signal characteristics (real/imagi-

 

 

nary, magnitude/phase, etc) of devices and systems in the 22.5 MHz to

 

 

65 GHz frequency range.

The 373XXA performs these measurements by sourcing a stimulus sig- nal to the Device Under Test (DUT) that is connected to the front panel Port 1 and/or Port2 connectors. (See Figure 7-1 on page 7-5). It simultaneously measures the DUT response, which consists of re- flected and/or transmitted (attenuated, or amplified) signals at the connectors of the DUT. The reflected and/or transmitted signal(s) and a sample of the stimulus signal, are down converted and then trans- formed into their real and imaginary vector components. The resul- tant vector components are measured and converted into digital infor- mation. This digital information is sent to the Main Processor PCB where the desired S-parameter data is normalized and then presented to the user via the front panel color display. The display information is also sent to the rear panel VGA Out connector for use with an external VGA monitor.

The normalized measurement information is also sent to the rear panel Printer Out connector for use with an external printer and/or plotter.

A front panel keypad, a rotary knob, and an IBM compatible keyboard interface provide user interaction with 373XXA Main Processor PCB.

The system is equipped with internal hard disk and floppy disk drives and battery backed internal memories for storage and retrieval of data and front panel setup information.

The 373XXA implements an IEEE 488.2 interface. This GPIB inter- face allows an externally connected instrument controller to control the 373XXA system in the “Remote-Only” mode. All 373XXA measure- ment and input/output operations may be controlled remotely in this mode.

373XXA MM

7-3

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Anritsu 373XXA manual Chapter, System Overview

373XXA specifications

The Anritsu 373XXA series is a notable line of microwave and RF signal analyzers designed for comprehensive analysis and testing of various wireless communication technologies. These analyzers are specifically crafted to meet the demands of modern communication systems, making them ideal for engineers and technicians working in wireless research, development, and manufacturing.

One of the main features of the Anritsu 373XXA series is its wide frequency range, which typically spans from as low as 5 kHz to several GHz, accommodating a vast array of signal types and applications. This extensive frequency coverage allows users to test and validate all manner of systems, from LTE and 5G networks to satellite communications, yielding accurate and reliable measurement results.

The device employs advanced measurement technologies that provide in-depth analysis capabilities. Among these technologies is the ability to perform both time and frequency domain measurements, allowing users to visualize and diagnose signal integrity issues effectively. In addition, the 373XXA series incorporates vector signal analysis, which is crucial in evaluating complex modulated signals, commonly found in today’s sophisticated wireless communication protocols.

Another distinguishing characteristic of the Anritsu 373XXA is its user-friendly interface. It features a large, high-resolution display that enables easy navigation through the analyzer's functions and measurements. The intuitive design is further enhanced by customizable settings and measurement configurations that streamline the workflow, making it accessible for both novice and experienced users.

The 373XXA series also supports various digital and analog signal demodulation techniques, ensuring compatibility with an array of communication standards. Furthermore, users can benefit from its built-in signal generation capabilities, which allows for end-to-end testing of devices and systems under realistic operational conditions.

Portability is another key feature of the Anritsu 373XXA series. The compact design and lightweight structure facilitate easy transport, which is particularly advantageous for field applications where mobility is critical.

Overall, the Anritsu 373XXA series stands out as a versatile and powerful tool for professionals in the RF and microwave field, thanks to its extensive frequency range, advanced measurement technologies, user-friendly interface, and portability. Whether developing new wireless standards or troubleshooting existing systems, the 373XXA delivers precision and reliability essential for today’s dynamic communication landscape.