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Agilent 11974 Series Preselected Millimeter Mixers
RF Sections Available in Four Bands from 26.5 to 75 GHz
Data Sheet
For the first time, preselected signal analysis is available to 75 GHz. With preselection, you can quickly and easily characterize all signals of interest. No images or multiples are displayed to confuse the measurement. Time consuming signal-identification routines are eliminated. Figure 1 shows how true signals can be obscured by displayed multiples and images in an unpreselected system. Figure 2 shows how only the true signals are displayed when an Agilent Technologies 11974 Series preselected millimeter mixer is used in making the measurement. Whether your millimeter-frequency application is component or system testing, signal surveillance or EMI measurements, your software
development and verification time will be reduced and your measurement times will be decreased. Simply place a marker on a signal--all responses are real--and perform a preselector peak. The analyzer then displays the amplitude and frequency of the signal. No time is lost creating and running signal identification routines, which used to be required to separate true responses from multiples and images. Each 11974 Series preselected millimeter mixer is characterized for conversion loss versus frequency. Calibration accuracy ranges from 1 dB at 26.5 GHz to 2 dB at 75 GHz. Just enter the conversion loss data into your host spectrum analyzer and then make amplitude-calibrated measurements. Choose your host spectrum analyzer Agilent 11974 Series preselected millimeter mixers are compatible with Agilent's 8566B, 8560 Series and E4407B of rugged portables1, 70000 Series modular spectrum analyzers and the E4440A/46A/48A PSA Series1.
Figure 1.
Figure 2.
1. Requires Option AYZ (external mixing).
Added Benefits of Preselected Millimeter Measurements
Reduced overload from many signals Preselected millimeter mixers reduce susceptibility to overloading by numerous signals. Overloading can cause your measurements to be uncalibrated. System amplitude accuracy Millimeter preselection improves system amplitude accuracy by reducing the level of local oscillator (LO) emissions back to the device under test. Option 001 further improves system amplitude accuracy by adding an isolator in front of the input filter. With Option 001, the RF input VSWR is <1.6:1 in A, Q, and U bands and <2.3:1 in V Band.
System configuration
To operate your 11974 Series preselected millimeter mixer, simply connect the tune+span output, local oscillator output,1 and the IF input of the spectrum analyzer to the mixer. Select the appropriate analyzer using the switch on the rear panel of the mixer. Make two easy adjustments, and you're ready to make millimeter measurements. The 11974 Series connect to a standalone power supply with a convenient 6-foot cable. Use the same power supply with any 11974 Series preselected mixer. A full set of upgrade kits is available to ensure compatibility with your existing spectrum analyzers including Agilent 8560A, 8561A/B, 8562A/B, 8566A/B, and E4440A/46A/48A PSA Series. Refer to the compatibility table to determine whether your spectrum analyzer requires an upgrade.
All versions of 8563A spectrum analyzers and 70907B external mixer interface modules are fully compatible with the 11974 Series. Greater dynamic range Preselection improves dynamic range when signals are sufficiently spaced. The preselector allows only one of these signals to reach the mixer at a time. So internally produced distortion products, such as third order intermodulation, are reduced. Ease of use Operators no longer need to learn techniques of signal identification. Anyone familiar with preselected microwave spectrum analyzers can quickly and easily make millimeter measurements. Spurs from a device under test are easily found. They are not hidden by images or multiple responses.
11974A
11474Q
11974U
11974V
26.5 GHz
33 GHz
40 GHz
50 GHz
60 GHz
75 GHz
1. Operation with 8566B spectrum analyzers requires the use of an 11975A LO amplifier to provide sufficient local oscillator power to the 11974 Series LO input. 2
Specifications
Unless noted, all specifications describe warranted performance under the following conditions: 5-minute warm-up from ambient conditions; 1-year calibration cycle; environmental requirements met; IF and LO connections between the Agilent 11974 and a compatible spectrum analyzer are made with one length of coax cable (part number 5061-5458). Typical performance is non-warranted. Supplemental characteristics are denoted by "nominal"; these constitute nonwarranted functional performance information derived during the design process and are not tested on a continuing basis.
Amplitude
Displayed average noise level Spectrum analyzers: 8566B, 71OOOC, PSA Series (RBW = 10 Hz) Maximum Typical
11974A 11974Q 11974U 11974V -111 dBm -106 dBm -109 dBm -100 dBm -118 dBm -116 dBm -117 dBm -109 dBm
Amplitude
Image rejection (image positioned 2x fIF above tuned response) Spectrum analyzers: 8566B, 71000C, PSA Series O C to 55 C
11974A 11974Q 11974U -54 dBc -50 dBc -50 dBc
20 C to 30 C
-59 dBc -55 dBc -55 dBc -55 dBc -45 dBc
Displayed average noise level Spectrum analyzers: 8563A/62A/61B/ 60A (RBW = 300 Hz)1 Maximum Typical
11974A 11974Q 11974U 11974V -96 dBm -91 dBm -94 dBm -85 dBm -103 dBm -101 dBm -104 dBm -94 dBm
11974V -50 dBc (50 to 67 GHz) 11974V -40 dBc (67 to 75 GHz)
Image rejection (image positioned 2x fIF above tuned response) Spectrum analyzers: 8563A/62A/61B/ 60A O C to 55 C
11974A 11974Q 11974U -50 dBc -45 dBc -45 dBc
Frequency
Frequency range (LO harmonic number)
11974A (n = 8) 11974Q (n = 10) 11974U (n = 10) 11974V (n = 14) 26.5 GHz to 40 GHz 33 GHz to 50 GHz 40 GHz to 60 GHz 50 GHz to 75 GHz
Maximum conversion loss RF to IF port (includes 1-m IF cable, part number 5061-5458)
11974A 11974Q 11974U 11974V 44 dB 46 dB 43 dB 57 dB
20 C to 30 C
-55 dBc -50 dBc -50 dBc -50 dBc -40 dBc
11974V -45 dBc (50 to 67 GHz) 11974V -35 dBc (67 to 75 GHz)
Preselector bandwidth (3 dB points) Minimum
11974A 11974Q 11974U 11974V 80 MHz 100 MHz 100 MHz 100 MHz
Typical
130 MHz 150 MHz 150 MHz 200 MHz
Conversion loss chart accuracy 20 C to 30 C: RSS of calibration equipment errors (Add 0.7 dB if used with 8563A/62A/61B/60A.) 0 C to 55 C: RSS of calibration equipment errors plus worst-case temperature effects of 11974 (Add 0.7 dB if used with 8563A/62A/61B/ 60A.) 0 C to 55 C
11974A 11974Q 11974U 11974V 2.3 dB 2.3 dB 2.6 dB 4.5 dB
Multiple response (Due to in-range applied signals mixing with LO harmonics other than order n)
11974A (n = 8) 11974Q (n = 10) 11974U (n = 10) 11974V (n = 14) (applied signal: 50 to 67 GHz) (applied signal: 67 to 75 GHz) -60 dBc -55 dBc -63 dBc -60 dBc -60 dBc
Center frequency accuracy, residual FM, span accuracy Using specifications of the spectrum analyzer, evaluate characteristics with reference to the harmonic numbers listed below. Harmonic number
11974A 11974Q 11974U 11974V n=8 n = 10 n = 10 n = 14
20 C to 30 C
1.0 dB +1.0 dB +1.1 dB 2.0 dB
1 dB gain compression (nominal)
11974A 11974Q 11974U 11974V +6 dBm 0 dBm 0 dBm +3 dBm
1. The minimum usable resolution bandwidth of the 8563A/61B/60A in external mixing mode is 300 Hz. The 8562A can be used with its minimum resolution band width of 100 Hz in external mixing mode. 3
Specifications
Amplitude
Third-order intercept (nominal) (For two signals spaced less than 200 MHz apart)
11974A 11974Q 11974U 11974V +13 dBm +13 dBm +13 dBm +13 dBm
Inputs and outputs (all values are nominal)
LO input
Connector type Frequency range 11974A 11974Q 11974U 11974V Maximum LO input level VSWR 3.3 GHz to 5 GHz 3.3 GHz to 5 GHz 4 GHz to 6 GHz 3.5 GHz to 5.3 GHz +14.5 dBm to 16 dBm < 2.0:1 (50 ) SMA (f)
Options
Option 001: Input isolator attached and included in calibration. An input isolator provides a specified broadband RF input match. This is important when the device under test requires protection from out-of-band reflections off the 11974's input tracking filter. With Option 001, the 11974 conversion loss is calibrated with the input isolator in place so that system amplitude accuracy is maintained.
IF subharmonic response (nominal) Intercept (2nd order; response at fIF/2 above input signal) fIF/2 = 160.7 MHz (8566B/71000C) fIF/2 = 155.35 MHz (8563A/62A/61B/60A)
11974A 11974Q 11974U 11974V +45 dBm +45 dBm +45 dBm +30 dBm
Specifications changes for Option 001 Amplitude
IF output
Connector type Match SMA (f) < 1.6:1 (50 )
Displayed average noise level and maximum conversion loss: Add +2 dB to the standard specifications for A, Q, and U bands; add +3 dB for V band.
Tune + span input
Connector type BNC (f)
RF input VSWR (across full waveguide band)
11974A, Q, U 11974V < 1.6:1 < 2.3:1
Dynamic range
Refer to Figure 3
Inputs and outputs (all values are nominal)
RF input Waveguide size, flange type Size
11974A 11974Q 11974U 11974V Maximum RF input level (CW, peak, or average) VSWR (at peak of preselector filter) WR-28 WR-22 WR-19 WR-15 +25 dBm
-20 -30
Flange
UG 599/U UG 383/U UG 383/U-M UG 385/U
Typical spur or noise level (dBc)
Displayed average noise floor
RB W
-40 -50 -60 -70 -80 -90 -100 -110 -120 -130
RB
W
=
10
Hz
Second order IF subharmonic distortion Image and multiple response Third order intermod ( 200 MHz signal separation)
= 30 0 Hz
< 3.0:1
-70
-60
-50
-40
-30
-20
-10
0
+10
+20
RF input (dBm)
Figure 3. Agilent 11974A system dynamic range
4
Specifications
General specifications
Environmental specifications type tested to MIL-T-28800C, Class 5 environmental conditions as listed below:
General specifications
Power requirements: 11974-60028 power supply (nominal)
Output Input +50 V, 0.6 A dc 15 V, 0.2 A dc 100/120/220/240 V ac 50 to 60 Hz 130 VA maximum
Temperature
Non-operating Operating -40 C to +75 C 0 C to +55 C
Power consumption Max. power dissipation 11974 Series 11974-60028
Relative humidity
95% 5% up to +40 C
35 W 25 W
Accessories supplied
The following is a list of all accessories and their part numbers supplied at shipment:
Altitude
Non-operating Operating < 12,195 m (< 40,000 feet) < 3,048 m (< 10,000 feet)
Weight (nominal)
11974 Series 11974-60028 preselector power supply 6.5 kg (14.3 lb) 11.9 kg (26.21 lb)
Accessory description
Power supply Ball Driver, 3/32 inch Wrench, 5/16 inch Alignment tool Four standard #4-40 screws for A band Captive screws for Q, U, and V bands, 4 each 3 cables with SMA (m) connectors (1 m) 1 cable with BNC (m) connectors (48 inches) 1 cable with BNC (m) connectors (24 inches) 1 adapter with BNC (f) connectors 1 stand for the 11974
Part number
11974-60028 8710-1539 8710-0510 8710-0630 3030-0221 1390-0671 5061-5458 8120-1839 8120-2582 1250-0080 83556-60010
Maximum vibration level
5 Hz to 55 Hz 2g
Dimensions (nominal)
11974 Series 210.2 mm (8.3") x 84.7 mm (3.3") x 101.5 mm (4.0") 11974-60028 preselector power supply 346.1 mm (13.6") x 212.7 mm (8.4") x 133.4 mm (5.25")
Maximum shock
30 g
Electromagnetic compatibility
Meets radiated and conducted emissions of MIL-STD-461B, Part 7, methods CE03 (Air Force) and RE02, FTZ 526/527/79
5
Compatibility Information
The following table lists compatibility requirements of host spectrum analyzers. Installation by a service center or personnel qualified by Agilent is required for the E4440A, E4446A, E4448A, and E4407B Option AYZ upgrade kits.
70000 modular measurement system with 70907 external mixer interface module
Model
70907A 70907B
S/N prefix
all all
Compatibility kit
70907A-K74 upgrade kit required1 Fully compatible provided 70900A/B LO meets the following requirements: Firmware date code YYMMDD LO upgrade kit required 850730 70907B-098 860203 (Firmware + CPU) 861015 70907B-099 870501 (Firmware only) 880314 880901 890606 Fully compatible
Rugged portable spectrum analyzers
Model
8560A 8560A 8561A 8561B 8561B 8562A/B 8560E/EC 8561E/EC 8562E/EC 8563A/E/EC E4407B
5
S/N prefix
< 3003A 3003A all < 3003A 3003A all all all all all all
Compatibility kit
8560A-K74 upgrade kit required2 Fully compatible2 8561A-K74 upgrade kit required3 8561 B-K74 upgrade kit required Fully compatible 8562A-K74 upgrade kit required3 Fully compatible Fully compatible Fully compatible Fully compatible Fully compatible
PSA Series with Option AYZ
Model
E4440A/46A/48A
S/N prefix
all
Compatibility kit
Fully compatible
8566A/B with 11975A LO amplifier
Model
8566A 8566A
S/N prefix
< 2007A
4
Compatibility kit
No upgrade kit available 8566AB conversion kit previously installed: Firmware datecode < 89.10.10: 8566B-K74 upgrade kit required Firmware datecode 89.10.10: 8566B-K75 upgrade kit required 8566AB conversion kit NOT previously installed: (two kits required) 8566AB conversion kit, 8566B-K75 upgrade kit 8566B-K74 upgrade kit required Fully compatible
2007A4
8566B 8566B
< 29484 29484
1. Mixer bias capability is converted to preselector peak, resulting in activation of a preselector peaking with the BIAS PEAK function. Sweep times must be manually controlled in wide spans to avoid oversweeping the preselector. 2. External mixing is not available with the 8560EC if a built-in tracking generator, Option 8560EC-002, has been installed. 3. Operation with 11974 Series will require entry of a frequency offset. Preselector peaking is performed manually with a screwdriver adjustment. Sweep times must be manually controlled in wide spans to avoid oversweeping the preselector. 4. The serial number prefix on the 8566A/B refers to the RF section. 5. Requires Option AYZ (external mixing). 6
Ordering Information
11974A 26.5 to 40 GHz 11974Q 33 to 50 GHz 11974U 40 to 60 GHz 11974V 50 to 75 GHz Option 11974X-001: Input isolator attached and included in calibration (Note: X = A, Q, U or V) Option 11974X-003: Exclusion of power supply (Note: X = A, Q, U or V) 5062-3989: Front handle kit for power supply 5062-3957: Rack mount kit with extended flange for power supply (half-width) Warranty and service Standard warranty is 12 months. Option R-51B: Return-to-Agilent warranty and service Calibration R-50C-001: Standard calibration R-50C-002: Standard compliant calibration E4407B 26.5 GHZ rugged portable 71100C 2.9 GHz modular 71200C 22/26.5 GHz modular 71210C 22 GHz modular 70907B external mixer interface module 8566B 22 GHz benchtop 11975A LO amplifier Compatible spectrum analyzers E4440A 3 Hz to 26.5 GHz high-performance E4446A 3 Hz to 44 GHz high-performance E4448A 3 Hz to 50 GHz high-performance 8560EC 2.9 GHz rugged portable 8561EC 6.5 GHz rugged portable 8562EC 13.2 GHz rugged portable 8563EC 26.5 GHz rugged portable 8564EC 40 GHz rugged portable 8565EC 50 GHz rugged portable Other related accessories available from Agilent Technologies: 281A/B waveguide with 2.4-mm coax adapters 382A attenuators for R, Q, and U bands only 373D/G 20/50 dB fixed attenuators 370A/B/C 3 dB, 6 dB, and 10 dB fixed attenuators for Q and U bands only 800 Series waveguide bends, twists, and straight sections 365A Series waveguide isolators for R, Q, U, and V bands
Note: An 8562A can be made hardware compatible with the 11974 Series by installing the 8562A-K74 upgrade kit. Limitations of using an 8562A with the 11974 Series are indicated in footnote 1 below.
1. Operation with 11974 Series will require entry of a frequency offset. Preselector peaking is performed manually with a screwdriver adjustment. Sweep times must be manually controlled in wide spans to avoid oversweeping the preselector. 7
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