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User’s Guide
11970 SERIES
HARMONIC MIXERS
(K, A, Q, U, V, and W Models)
Manufacturing Part Number: 11970-90031
Supersedes 11970-90030
Printed in USA
October 2003
© Copyright 1992, 1999, 2001−2003 Agilent Technologies, Inc.
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Notice The information contained in this document is subject to change without notice. Agilent Technologies makes no warranty of any kind with regard to this material, including but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Agilent Technologies shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material. Certification Agilent Technologie
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LIMITATION OF WARRANTY The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer, Buyer-supplied software or interfacing, unauthorized modification or misuse, operation outside of the environmental specifications for the product, or improper site preparation or maintenance. NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. AGILENT TECHNOLOGIES SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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Table of Contents Contents 1. General Information Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Mixers Covered by Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 11970 Series Harmonic Mixers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Contents Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 4. Service Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 R
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General Information 1 General Information 7
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General Information Introduction Introduction The Agilent Models 11970K, 11970A, 11970Q, 11970U, 11970V and 11970W are general-purpose harmonic mixers with very flat frequency response characteristics and low conversion loss. Collectively, they cover the frequency range of 18 to 110 GHz. The 11970K covers the 18 - 26. 5 GHz range; the 11970A, the 26.5 - 40 GHz range; the 11970Q, the 33 - 50 GHz range; the 11970U, the 40 - 60 GHz range; the 11970V, the 50 - 75 GHz range; and the 11970W, the
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General Information General Information Introduction 11970 Series Harmonic Mixers Figure 1-1. Options Option 009, shown in Figure 1-2. is a Mixer Connection Kit. It includes three low-loss SMA cables (Part Number 5061-5458), one hex-head balldriver (Part Number 8710-1539) for tightening the waveguide connector screws, and one 5/16-inch open-end wrench (Part Number 8710-0510) for use on the SMA connectors. Spectrum Analyzer Retrofit Requirements The 11970 Series Mixers are fully compatible w
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General Information Introduction PSA Series E4440A, E4446A, and E4448A spectrum analyzers require Option AYZ (LO OUT and IF IN connectors). The E4443A and E4445A do not support external mixing. Figure 1-2. Mixer Connection Kit, Option 009 10 Chapter 1 General Information
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General Information General Information Specifications Specifications Specifications for the 11970 Series Mixers are listed in Table 1-1. These are the performance standards against which the mixers are tested (performance tests are provided in Chapter 3 ,“Performance Tests,”). Typical or nominal operating values are listed in Table 1-2. NOTE Supplemental characteristics are included only as additional information; they are not specifications. Equipment Supplied Waveguide Connector Screws Fi
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General Information Specifications Table 1-1 11970 Series Specifications NOTE Unless otherwise stated, all specifications apply for an IF of 321.4 MHz and for RF input amplitudes of less than -20 dBm. GENERAL 1 Bias Requirements: None LO Amplitude Range: 14 to 18 dBm Calibration Accuracy: Maximum CW RF Input Level: 20 dBm (l00mW) 11970K/A/Q/U: ± 2.0 dB with LO amplitude range of 14.5 to 16 dBm Maximum Peak Pulse Power: 11970V/W: 24 dBm with < 1µ sec pulse (avg. power: + 20 dBm) ± 2.2 dB with L
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General Information General Information Specifications Table 1-1 11970 Series Specifications NOTE Unless otherwise stated, all specifications apply for an IF of 321.4 MHz and for RF input amplitudes of less than -20 dBm. MODEL 11970K MODEL 11970A RF Frequency Range: RF Frequency Range: 26.5 - 40 GHz 18 - 26.5 GHz LO Harmonic Number: 6 LO Harmonic Number: 8 LO Input Frequency Range: LO Input Frequency Range: 3.27 - 4.96 GHz 2.95 - 4.36 GHz Maximum Conversion Loss: 26 dB Maximum Conversion Loss:
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General Information Specifications Table 1-1 11970 Series Specifications NOTE Unless otherwise stated, all specifications apply for an IF of 321.4 MHz and for RF input amplitudes of less than -20 dBm. MODEL 11970W MODEL 11970V RF Frequency Range: RF Frequency Range: 75 - 110 GHz 50 - 75 GHz LO Harmonic Number: 14 LO Harmonic Number: 18 LO Input Frequency Range: LO Input Frequency Range: 4.15 - 6.09 GHz 3.55 - 5.33 GHz Maximum Conversion Loss: 46 dB Maximum Conversion Loss: 40 dB 8566B Noise Le
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General Information General Information Specifications Table 1-2 11970 Supplemental Characteristics NOTE Supplemental characteristics are included only as additional information; they are not specifications. 3 dB IF Bandwidth: DC to 1.3 GHz Odd Order Mixing Product Suppression: 11970K/A/Q/U: >20 dB 11970V/W: >15 dB Spectrum Analyzer Absolute Amplitude Gain Compression Level (<1 dB): Accuracy (using calibration data with a 14.5 to 11970K: -3 dBm 16 dBm LO): 11970A: -5 dBm 11970K, 18 - 26.5 GHz: ±
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General Information Specifications 16 Chapter 1 General Information
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Operation 2 Operation 17
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Operation Introduction Introduction This section provides information on how to make effective use of the 11970 mixers. Operating Precautions Refer to the sections below for specific parameters to follow prior to mixer operation. WARNING Do not exceed the maximum ratings listed below or permanent damage to the mixer will result. RF Input Power Use the following parameters: CW: No greater than 20 dBm Pulse: No greater than 24 dBm at < 1 mSec Average: No greater than 20 dBm LO Input Power Make su
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Operation Operation Getting Started Getting Started The 11970 series of millimeter wave mixers have no bias or back-short adjustments. 11970 Mixers require an LO power of 14 to 18 dBm at the LO input. If the spectrum analyzer used with the 11970 does not have sufficient LO power, an 11975A Amplifier or an equivalent is required to increase this power. CAUTION Before connecting the 11975A Amplifier, set its rear panel ALC switch to ON. Failure to do this can damage the mixer. Mixer Connection
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Operation Getting Started If you are using an 11970Q, 11970U, 11970V or 11970W Mixer, and the shoulder of its waveguide flange is not properly aligned with the flange of the device under test, amplitude measurement errors can result. To ensure proper alignment, tighten each of the four flange screws in turn by small amounts, moving clockwise around the flange. NOTE 11970K and 11970A Mixers require flange screws that are different from those used with the 11970Q, 11970U, 11970V and 11970W; 11
