r&s®zva 矢量网络分析仪 产品应用指南 -开心体育

r&s®visa is a standardized software library that allows fast communications over diverse interfaces with a wide variety of t&m instruments that are detected on the network from pc applications. r&s®visa also includes a trace tool that simultaneously monitors communications between multiple applications and t&m instruments, and permits targeted analysis with the aid of efficient filters.

english - 2020年5月26日

fault identification in single elements of antenna arrays by scanning in near-field range and applying the near-field to far-field transformation method.

english - 2020年3月24日

english - 2018年6月28日

over-the-air (ota) beamforming testing

english - 2018年5月4日

this application note reviews a new calibration subsystem which consists of inline calibration units (icus). these icus are designed for in situ use, so they are left in place both during the calibration procedure and during the measurement of the device under test (dut).this adds versatility, convenience and accuracy to the vna based measurement system, as it means the calibration can be refreshed at any time without manually disconnecting the dut from the test system.

english - 2017年9月29日

this application note outlines two different approaches for remote-controlling rohde & schwarz instruments out of mathworks matlab:the first one uses visa connection and direct scpi commands.the second approach takes advantage of rohde & schwarz vxi plug&play instrument drivers and matlab instrument control toolbox.

english - 2017年6月12日

rapid and accurate verification of beamforming weights is required for example, for codebook generation or beamforming algorithm development or verification. this document describes the unique application of rohde & schwarz vna (vector network analyzers) to fully characterize the passive part of multi-element antennas intended for beamforming.a range of r&s vna models are optionally equipped with multiple independent sources, whose relative amplitude and phase may be arbitrarily controlled ("defined coherence mode"), in addition to frequency and true time delay. these sources may be connected to individual elements of a multi-element antenna to derive and verify transmit (tx) mode beamsteering and beamforming operation.the r&s®zva in "defined coherence mode" can electronically be switched to / from the conventional s-parameter mode. therefore, sparameter and beamforming measurements may be performed efficiently within a single connection cycle of the antenna.multiple vna may be daisy-chained, to extend the concept shown to support an arbitrary number of ports.the r&s®quickstep sequencing software may be downloaded from:https://www.rohde-schwarz.com/software/quickstep/

english - 2017年3月20日

after a communications satellite is on its target orbit, several routines need to be performed in order to ensure proper performance from the transponders in the payload. the on-orbit measurements are a vital part of the maintenance of a live satellite as well. operating a satellite channel for an on-orbit measurement rather than the intended application comes with significant opportunity cost and hence test duration needs to be minimized as much as possible. rohde & schwarz test and measurement equipment recommended in this paper is market leading not only in terms of measurement accuracy but also offers unparalleled speed of measurement. this application note focuses on satellite post-launch or on-orbit measurement and monitoring strategies used for satellite functionality checks when running maintenance routines. a complementary paper treats pre-launch payload measurements.

english - 2016年11月25日

5g networks will need to offer more capacity and flexibility while lowering the operational expenses of the system. two new technologies can simultaneously address both the increase in capacity and the increase in energy efficiency: virtualization & massive mimo. this white paper provides an overview of test solutions addressing current and future requirements for antenna verification including both conducted and over-the-air (ota) test methods, which result from applying massive mimo antenna technology.this white papers complements the white paper (1ma276) from rohde & schwarz, which introduces fundamental theory behind beamforming antennas and provides calculation methods for radiation patterns, a number of simulation results as well as some real world measurement results for small linear arrays.

english - 2016年11月11日

designing and implementing an active phased array antenna requires precise characterization of individual components and the integrated performance of the array. to ensure an accurate test of the intended adaptive nature of the active phased array antenna, the embedded algorithms need to be tested as well.this application note aims to explain test procedures and give recommendations towards characterization of the relevant parameters for active phased array antennas and their passive subsystem, as often used in applications for mobile communication and radar. this application note describes transmit signal quality testing, multi-element amplitude and phase measurement techniques both in receive and transmit cases and introduces a new automated test methodology antenna radiation pattern measurement over frequency. this paper also describes the test system used for transmit and receive module (trm) characterization in active array antennas.

english - 2016年7月4日

this application note describes methods using an r&s®zva network analyzer, one or two r&s®smb100a signal generators and an r&s®fsw signal analyzer to accurately measure all the key parameters of frequency converters with embedded local oscillator. a commercial satellite up-converter is used as a device under test example.

english - 2015年4月30日

this application note provides hints for implementing remote control programs using rohde & schwarz spectrum and network analyzers. the document makes suggestions for improved remote control performance and describes aspects of measurement synchronization in detail. finally the document discusses some typical challenges of remote control in production test.

english - 2014年8月19日

r&s®zva, r&s®zvt application sheets

english - 2014年7月28日

welcome to this introductory video show about the r&s® zva family of network analyzers. network analysis is sometimes considered to be cumbersome and difficult to understand, a very offputting reputation for newcomers to network analyzers. to help you look at network analyzers in a different light, we have created this video series. we have intentionally refrained from explaining any theory in depth. rather, we want to show you how to operate our analyzers for simple and useful applications. as well as just watching this video show, you can also use it as a guide and try yourself. all the operational steps shown only require a standard rf power amplifier which should be available in almost every lab. so, before we get properly started, we hope you enjoy this video show and much success in becoming familiar with network analysis in general, and our r&s products in particular.

english - 2014年2月13日

this application note shows how to remote control the switching of rf and digital i/o signals by r&s®osp open switch and control platform directly from a vector network analyzer (vna) or from a spectrum analyzer (sa). the r&s®zva, r&s®zvb, r&s®znb, r&s®fsw and r&s®fsv families are covered. the application note first describes the requirements and setup procedure. it is shown how to install the software and how to set up the system in order to get highest flexibility and best usability. it is then shown how to calibrate the entire configuration and finally some practical examples are provided. switching is explained using vnas as an example, the appendix 5.4 provides hints regarding the differences when using sas in a similar way.

english - 2013年12月6日

unique automatic level controlled (alc) based test setup using the r&s®zva vector network analyzer and r&s®bba150 broadband amplifiers provides highly accurate and reproducible results in minimum test time.

english - 2013年9月27日

power added efficiency (pae) is a key parameter for the characterization of an amplifier.this application notes introduces two alternative methods how to do the power added efficiency measurement. the first one is based on the r&s znb vector network analyzer (vna) measurement function. alternatively to this, the pae tracer macro is introduced. this macro offers to make the pae at an user selected compression point of the amplifier versus frequency. the pae tracer macro is provided together with this application note.

english - 2013年5月22日

the r&s®zva vector network analyzer with the r&s®zva-k9 option enables absolute group delay measurements on devices with embedded lo without the need for a calibration mixer

english - 2013年5月17日

this application note describes testing s-parameters under pulsed conditions with the r&s®zva vector network analyzer and either the zvax24 extension unit with pulse modular option or the r&s®smf signal generator with pulse modulator as a signal source.in addition a constant power level calibration for applications requiring high drive power for test and measurement of device under test (dut) is also included. a ldmos s-band radar power transistor is used as example dut. the pulse profile mode of the r&s®zva is used to analyze the time-dependent behavior of the dut.

english - 2013年4月11日

this document describes how a windows®-based r&s® t&m instrument is remotely operated by an apple ipad as if working on it locally. step-by-step procedures are provided for setting up and configuring the t&m instrument and the ipad. on the ipad, a special app implements the windows® 'remote desktop' functionality. t&m instrument and ipad are connected via wlan (also denoted as wi-fi network).

english - 2013年3月28日

the aim of this application note is to provide information regarding rohde & schwarz instrument drivers. this paper shall help application engineers and software developers to easily get an understanding of advanced techniques to develop test and measurement (t&m) applications by utilizing rohde & schwarz instrument drivers. furthermore the nomenclature used for rohde & schwarz instrument drivers will be explained.

english - 2013年1月1日

the use of rohde & schwarz device drivers under vee software is not complicated. however, a number of factors are involved, the errors that occur are often difficult to diagnose. this application provides easy and detailed support for installation and troubleshooting using national instruments or agilent gpib boards.

english - 2012年12月20日

this application note describes the noise figure measurement using the r&s vector network analyzers of the zva and zvt series. it explains the concept of measuring noise figure without the need for a characterized noise source. furthermore, it discusses different measurement applications and the respective setup and implications. some examples guide through the instrument setups and show measurement results as well.

english - 2010年10月27日

this application note explains how to create screenshots of rohde & schwarz instruments using instrument drivers. the presented examples are written in c (labwindows/cvi), c# programming language and labview. the examples are available at the instrument driver download site.

english - 2009年12月11日

application note 1ma25 has been replaced by application note .

english - 2009年8月28日

this document describes how the advanced calibration techniques of the zva vector network analyzers can solve the challenges of measuring the s-parameters on impedance matching devices. the document describes the concept and setup required to perform the calibration of the zva and making the measurement. the procedure described in this application note applies to the zvb and zvt vector network analyzers as well.

english - 2009年5月6日

the converters offered for the r&s®zva family extend the network analyzers' frequency range up to 325 ghz. this application note describes typical measurements on millimeter-wave mixers and millimeter-wave frontends. it also discusses a signal identification method that enables spurious measurements to be performed in the millimeter-wave range using an r&s®zva network analyzer in conjunction with a converter.

english - 2008年11月17日

this application note describes characterization of devices used in radar systems with pulsed signals. the emphasis is on measurements using vector network analyzers (vnas), signal generators, vector signal generators and spectrum analyzers.

english - 2008年1月18日

the converters offered for the r&s® zva family extend the vector network analyzers' frequency range to include the millimeter-wave range (ehf band). this application note describes the r&s® zva-z110 converters. they cover the w band (75 ghz to 110 ghz). several measurement examples are included, explaining in detail how to configure a converter-based vector network analyzer system.

english - 2007年10月9日

the r&s® zva-z110 converters offered for the r&s® zva family enable network analysis in the w band (75 ghz to 110 ghz). in this application note, measurements with three or four converters will be discussed. test configurations for such measurements have so far been implemented only with coaxial connector systems for a frequency range up to approx. 40 ghz. the term 'multiport measurements' was created for this type of measurements.

english - 2007年10月9日