参数资料
型号: AC119A-38-41
元件分类: 衰减器
英文描述: 0 MHz - 4000 MHz RF/MICROWAVE VARIABLE ATTENUATOR, 0.6 dB INSERTION LOSS-MAX
文件页数: 1/3页
文件大小: 153K
代理商: AC119A-38-41
5305 Spectrum Drive, Frederick, MD 21703-7362
TEL: 301-846-9222, 800-638-2048
Fax: 301-846-9116
web: www.aeroflex-weinschel.com
email: weinschel-sales@aeroflex.com
73
Revision Date: 12/29/08
Variable Attenuators
Models 115A thru 119A
dc to 18.0 GHz
Manual Step Attenuators
2 Watt
Choice of Type N or SMA Connectors
Features
o Safety Mechanical Stop - A mechanical stop between
maximum and 0 attenuation positions on all models
prevents damage to the mechanical drive as well as
preventing large power changes that could cause dam-
age to sensitive equipment.
o Choice of Attenuation Ranges - Five standard atten-
uation ranges are available: 0-9 dB, 0-69 dB, and 0-99
dB in 1 dB steps, and 0-60 dB and 0-90 dB in 10 dB
steps.
o Broadband - All models are available in a choice of 2
frequency ranges: dc-4 and dc-18 GHz.
o Right-Angle
Drive
-
The center conductor of the connector is perpendicular
to the control shaft, offering greater flexibility of applica-
tions: panel mounting or bench setup. All models are
bidirectional.
o Custom Configurations Available Upon Request.
o Low Deviation from Nominal Value - These Mini Step
Attenuators have flat frequency response over speci-
fied bands and excellent attenuation accuracy.
Deviation from nominal value is low at all settings.
o Excellent Repeatability and Long Life Switch -
Repeatability is better than 0.05 dB to 18.0 GHz for
over 1,000,000 switchings of the drum.
Description
The Aeroflex / Weinschel Models 115A through 119A are a
series of broadband, step attenuators in a right-angle drive
configuration, where the center conductor of the connector
is perpendicular to the control shaft. They feature excellent
performance characteristics suitable for use in high reliabil-
ity 50 ohm systems and applications requiring extra-small
components for the precision control of power in discrete
steps. They can be used either as input or output attenua-
tors in signal sources, receivers, field strength meters,
spectrum analyzers, etc.
Specifications
NOMINAL IMPEDANCE: 50
Ω
FREQUENCY RANGE (add Model No. Prefix to
Designate Range):
All Models:
dc to 4.0 GHz (AC)
dc to 18.0 GHz (AF)
STANDARD INCREMENTAL ATTENUATION RANGE:
Model 115A:
0 to 9 dB in 1 dB steps
Model 116A:
0 to 60 dB in 10 dB steps
Model 117A:
0 to 69 dB in 1 dB steps
Model 118A:
0 to 90 dB in 10 dB steps
Model 119A:
0 to 99 dB in 1 dB steps
MAXIMUM SWR (Models 117A & 119A):
Frequency
115A, 116A
Range (GHz)
117A & 119A
& 118A
dc - 4
1.35
1.25
4 - 12.4
1.50
1.60
12.4 - 18.0
1.70
1.60
POWER RATING: 2 watts average to 25°C ambient
temperature, derated linearly to 1 watt @ 54°C. 200 watts
peak (5
μsec pulse width; 0.5% duty cycle)
POWER COEFFICIENT: < 0.005/dB/dB/watt
TEMPERATURE COEFFICIENT: < 0.0004/dB/dB/°C
TEMPERATURE RANGE: Operating:
0°C to +54°C
Nonoperating: -54°C to +54°C
INCREMENTAL PHASE SHIFT: ~0.5° per dB x f(GHz)
REPEATABILITY: Better than 0.05 dB across frequency
band for switch life.
SWITCH LIFE: Over 1,000,000 steps
INDEXING: 36°
MAXIMUM INSERTION LOSS (dB):
Model
CONN
Frequency Range (GHz)
Number
Type
dc-4
dc-18
115A
N
0.3
0.7
SMA
0.3
1.0
116A
N
0.3
0.7
SMA
0.4
1.0
117A
N
0.5
1.2
SMA
0.6
1.5
118A
N
0.4
0.8
SMA
0.5
1.0
119A
N
0.5
1.2
SMA
0.6
1.5
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AF119A-76-23 0 MHz - 18000 MHz RF/MICROWAVE VARIABLE ATTENUATOR, 1.5 dB INSERTION LOSS-MAX
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