Keysight Technologies E8740A-070 Startup Manual
  1. Manuals
  2. Brands
  3. Keysight Technologies Manuals
  4. Radar
  5. E8740A-070
  6. Startup manual

Keysight Technologies E8740A-070 Startup Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Keysight E8740A-070
Performance Radar Signal
Generation Solution
Start-up Guide

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the E8740A-070 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Summary of Contents for Keysight Technologies E8740A-070

  • Page 1 Keysight E8740A-070 Performance Radar Signal Generation Solution Start-up Guide...
  • Page 2 FAR 27.401 or DFAR could result in personal injury or death. 227.7103-5 (c), as applicable in any Do not proceed beyond a WARNING technical data. notice until the indicated conditions are fully understood and met. Keysight E8740A-070 Start-up Guide...

  • Page 3: Waste Electrical And Electronic Equipment (Weee) Directive

    To contact Keysight for sales and technical support, refer to the support links on the following Keysight websites: – www.keysight.com/find/automotiveradar (product-specific information and support, software and documentation updates) – www.keysight.com/find/assist (worldwide contact information for repair and service) Keysight E8740A-070 Start-up Guide...
  • Page 4 THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight E8740A-070 Start-up Guide...

  • Page 5: Table Of Contents

    ..........47 Keysight E8740A-070 Start-up Guide...
  • Page 6 THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight E8740A-070 Start-up Guide...

  • Page 7: Preface

    Preface This document provides a quick guide on how to use the E8740A-070 Performance Radar Signal Generation Solution to generate automotive radar signals in the E-band spectrum. In the Setting up the System section, we will discuss equipment set up and prerequisite software installation.

  • Page 8: Setting Up The System

    M8195-91010 Keysight M8195A Arbitrary Waveform Generator Getting Started Guide. N5180-90054 Keysight X-Series Signal Generator - Getting Started Guide. M9537-90001 Keysight M9537A AXIe Embedded Controller Startup Guide. M9502-90001 Keysight M9502A and M9505A AXIe Chassis Startup Guide. Keysight E8740A-070 Start-up Guide...
  • Page 9 “Calibration and Amplitude Correction” on page 37, a Keysight spectrum analyzer (MXA, PXA) or is required. Connect the instrument to the USB port of the M9537A. An oscilloscope may also be used to calibrate the system. Keysight E8740A-070 Start-up Guide...
  • Page 10 Since the RF output from the M8195A can exceed 0 dBm, an optional 8493C 6 dB attenuator may be optionally attached in series to protect the up converter from accidental damage. The attenuator will also lower the AWG’s Keysight E8740A-070 Start-up Guide...

  • Page 11: Software Installation Requirements

    Signal Generation Radar Assistant is also an example application in IQTools. If you have purchased the M8195A with the N6171A MATLAB license option, you will receive access to the modifiable version of IQTools. Keysight has also made a Keysight E8740A-070 Start-up Guide...
  • Page 12 1 Download the installation file iqtools_incl_mcr_XXXX_XX_XX.exe from the following link: https://www.keysight.com/main/ software.jspx?cc=US&lc=eng&nid=-11143.0.00&id=2943553&pageMode=CV 2 Click on the file to start the installation. The following dialog will be displayed after a while. Click Next to proceed with installation. Keysight E8740A-070 Start-up Guide...
  • Page 13 3 Choose the default installation folder or key in a new path. Click Next. 4 Choose the default installation path or enter a new path for the MATLAB runtime. Keysight E8740A-070 Start-up Guide...
  • Page 14 5 Confirm the installation paths of the files and click Install. Installation will begin, if the required MATLAB runtime is not already present in the system, the runtime will also be installed. Follow the instructions of the MATLAB runtime install. Keysight E8740A-070 Start-up Guide...
  • Page 15 6 You may need to reboot the system after installation. Keysight E8740A-070 Start-up Guide...

  • Page 16: Generating A 79 Ghz Fmcw Radar Signal Manually With Iqtools

    RF frequency is “reversed” with respect to the IF frequency. The following settings for signal generation will be used in this guide: Figure 3 Simplified block diagram and generated RF spectrum Keysight E8740A-070 Start-up Guide...
  • Page 17 Press the RF On/Off button on the MXG to turn off the RF output first. b Press the FREQ button and enter 37.5 GHz using the numeric keypad. c Press the AMPTD button, enter 6 dBm using the numeric keypad. Keysight E8740A-070 Start-up Guide...
  • Page 18 IQTools GUI during signal generation, the SFP is required for “on the fly” operation of the M8195A AWG. Once the SFP has finished booting up, the window may be minimized and the application run in the background until required. Keysight E8740A-070 Start-up Guide...
  • Page 19 - Connection type = visa - Key in TCPIP0::local::hislip0:INSTR for the VISA Address. - Press the Test connection button. If the M8195A SFP in already running properly, the button should turn green as show in Figure Keysight E8740A-070 Start-up Guide...
  • Page 20 10e6 Hz. This will synchronize the M8195A time base with that of the N5183B. - Leave the other parameters as default. Press OK to save the parameters and quit the dialog box. Figure 5 Instrument Configuration dialog Keysight E8740A-070 Start-up Guide...
  • Page 21 From the IQ Tools main dialog, click on the Radar Pulses/Chirp button. b This will launch the Radar Pulse dialog window. Enter the parameters as shown in Figure 6. This will create the IF FMCW waveform described in Table Figure 6 Radar Pulse generation dialog Keysight E8740A-070 Start-up Guide...
  • Page 22 37) IQTools is able to pre-distort the generated signal to compensate for the amplitude response of the system. Check this box to apply the pre-distortion. Pressing the Show Corr. button displays the system response if calibration has been performed. Keysight E8740A-070 Start-up Guide...
  • Page 23 8 Press the Visualize in MATLAB button. This will bring up three windows where the created waveform can be viewed in the time and frequency domain. Note that the windows overlapped on top of each other when created, so they need to be rearranged. Figure 7 Visualize generated waveform Keysight E8740A-070 Start-up Guide...
  • Page 24 9 Press the Download Waveform button to generate the signal. If the output is connected to a spectrum analyzer, the FMCW waveform can be monitored as shown in Figure Figure 8 Generated FMCW waveform Keysight E8740A-070 Start-up Guide...
  • Page 25 – Control the output voltage by changing the Amplitude. – Start Stop signal generation using the Run/Stop button. – The Marker output is also available for use as a trigger on channel 3 and channel 4. Figure 9 M8195A SFP Output tab Keysight E8740A-070 Start-up Guide...

  • Page 26: Generating A 79 Ghz Fmcw Radar Signal With Fmcw Radar Assistant

    The radar generation assistant controls are organized into several logical control groups. The figure below shows the organization and layout of the GUI controls. The description of each control is provided in this section. Figure 10 FMCW Radar Generation Assistant dialog Keysight E8740A-070 Start-up Guide...
  • Page 27 The bandwidth of the upper (and lower) sideband spectrum. The max allowable bandwidth is 5 GHz and the upper sideband spectrum must be within the 76 to (edit box) 81 GHz band. Sweep time The duration in time of each linear FM sweep cycle. (edit box) Keysight E8740A-070 Start-up Guide...
  • Page 28 Toggles the RF output from the LO source. (check box) LO Cable Loss Key in the value (positive) of the cable loss. The LO source amplitude will be increased to compensate for this loss. (check box) Keysight E8740A-070 Start-up Guide...
  • Page 29 “Calibration and Amplitude Correction” on page 37 for a discussion of calibration. View Correction Opens the Correction Management window of IQTools where the system amplitude response with frequency can be observed if calibration have been (button) performed. Keysight E8740A-070 Start-up Guide...
  • Page 30 Important: When using the radar assistant, do not use the M8195A SFP signal generation button as this may cause the radar assistant and M8195A to be out of sync with respect to the state of the sequencer. Keysight E8740A-070 Start-up Guide...

  • Page 31: Using The Radar Assistant

    3 We are going to configure IQTools and instruments for use with the radar assistant: a From the IQTools main dialog, click on the Configure instrument connection button. This will launch the Instrument Configuration dialog as shown in Figure Figure 12 IQTools main dialog Keysight E8740A-070 Start-up Guide...
  • Page 32 Do not enable the Amplitude Set check box. The state of the Instrument Configuration dialog box should be as shown below. Press Ok and close the dialog box to continue. Figure 13 Instrument Configuration dialog Keysight E8740A-070 Start-up Guide...
  • Page 33 2. Open the M8195A SFP and select the Clock tab. e Click the switch to select the M8195A to use the reference from the ref clk in port. Enter 10.0 MHz as the reference frequency as shown below. Figure 14 M8195A SFP Clock tab Keysight E8740A-070 Start-up Guide...
  • Page 34 If the LO cable specifications are known, key the loss in dB in the LO Cable Loss edit box so that the assistant can adjust the amplitude accordingly. You may also leave the loss at 0 dB and adjust the LO source amplitude manually after the signal is generated. Keysight E8740A-070 Start-up Guide...
  • Page 35 During signal generation, the outputs of the Source and M8195A can be turned on and off and the amplitudes adjusted. Always use the Stop Generation button to stop the sequencer before pressing the NOTE Generate Waveform button again. Keysight E8740A-070 Start-up Guide...
  • Page 36 Figure 16 FMCW Radar Generation Assistant settings Figure 17 Generated AWG waveform Keysight E8740A-070 Start-up Guide...

  • Page 37: Calibration And Amplitude Correction

    “Generating a 79 GHz FMCW Radar Signal Manually with IQTools” page 16, the output frequency from the N5183B source is set at 37.5 GHz which will result in a carrier frequency of 75 GHz due to the x2 harmonic factor of the N9029ACST upconverter. Keysight E8740A-070 Start-up Guide...
  • Page 38 Note that if the Spectrum Analyzer is already powered up and ready, connect the coaxial cables first before the USB cable. Figure 18 Calibration setup using Smart Mixer and SA ext. mixer port Keysight E8740A-070 Start-up Guide...
  • Page 39 Select the Input tab and in the Mixer Path control, choose DualConversion from the drop-down list. Also turn on the Signal ID function as shown in figure below. Figure 19 Spectrum Analyzer Input/Output menu on X series Spectrum Analyzer Keysight E8740A-070 Start-up Guide...
  • Page 40 Make sure the Clock Source is set as Leave Unchanged as we are going to change the path using the M8195A SFP. The Instrument Configuration dialog box should appear as shown below in Figure 20. Press Ok to close the dialog box. Keysight E8740A-070 Start-up Guide...
  • Page 41 Figure 20 Setting up the Spectrum Analyzer in the Instrument Configuration dialog Keysight E8740A-070 Start-up Guide...
  • Page 42 6 Set the RF frequency and amplitude of the N5183B. Press the FREQ button and enter 37.5 GHz. Press the AMPTD button, enter 6 to 8 dBm (depends on LO cable loss). Turn on the source output. Keysight E8740A-070 Start-up Guide...
  • Page 43 7 In IQTools, launch the Multi-Tone & Noise dialog. Enter the following parameters as shown below. # of tones Start Frequency (Hz) 3.0e9 Stop Frequency (Hz) 5.0e9 Fc (Correction only) 75.0e9 Ampl. Corr using Spec.An. (Zero Span) Figure 22 IQTools Multi-Tone & Noise dialog settings Keysight E8740A-070 Start-up Guide...
  • Page 44 Spec.An. (List Sweep). 9 Press the Download button. Make sure Apply correction is unchecked. This should result in an uncorrected spectrum to appear on the spectrum analyzer as shown in Figure Figure 23 Uncorrected multi-tone spectrum Keysight E8740A-070 Start-up Guide...
  • Page 45 Once it is completed, the corrected (predistorted) waveform is automatically generated and downloaded into the sequencer memory again. Observe that the spectrum has a flatter response now. Figure 24 Multi-tone spectrum after correction Keysight E8740A-070 Start-up Guide...
  • Page 46 11 To view the relative amplitude response of the system that was measured by IQTools, press the Show Correction button on the Multi-Tone & Noise dialog. Figure 25 IQtools Correction Manager dialog Keysight E8740A-070 Start-up Guide...

  • Page 47: Calibrating System Using A Down-Converter Mixer And Rf Input Port

    3 GHz, the RF port of the spectrum analyzer can be used. Figure 26 shows a setup which can be used to calibrate the generation system. Figure 26 Calibration setup using mixer and SA RF port Keysight E8740A-070 Start-up Guide...
  • Page 48 77 to 81 GHz signal use the following set up in the Multi-Tone & Noise dialog as shown in Figure 27 below. Figure 27 Multi-Tone & Noise dialog settings for 4 GHz calibration Keysight E8740A-070 Start-up Guide...
  • Page 49 The downconverter mixer and system should be calibrated at the LO frequency and power of operation. Once the response of the receiver system is know, a correction file can be created and downloaded into the spectrum analyzer. Keysight E8740A-070 Start-up Guide...
  • Page 50 THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight E8740A-070 Start-up Guide...
  • Page 51 This information is subject to change without notice. Always refer to the Keysight website for the latest revision. © Keysight Technologies 2018 Edition 1, February 9, 2018 Printed in Malaysia *E8749A-90700* E8749A-90700 www.keysight.com...

Table of Contents