Fixed Attenuators
18 - 325 GHz
Features
q
q
q
3(WG) 109 Series
V2.00
Low and High Power
Full Waveguide Bandwidths
Minimum VSWR
Description
This series of attenuators provides an inexpensive
method of making measurements in fixed frequency
laboratory or production test set-ups. Fixed attenuators
are generally designed into a system at a given
frequency for a specific purpose such as detector
protection. These units consist of a section of waveguide
into which a fixed resistive vane is inserted.
Mechanical Specifications
Waveguide
WR-42
WR-28
68-001
WR-22
67B-006
WR-19
67B-007
WR-15
67B-008
WR-12
67B-009
WR-10
67B-010
WR-08
74-001
Pin
Contact
1.50
(38.1)
WR-06
74-002
Pin
Contact
1.50
(38.1)
WR-05
74-003
Pin
Contact
1.50
(38.1)
WR-04
74-004
Pin
Contact
1.50
(38.1)
WR-03
74-005
Pin
Contact
1.50
(38.1)
RF Mating
Flange
54-001-M
MIL-F-3922/
UG
Reference
Dim (Max.)
Inch (mm) A
595/U
3.50
(88.9)
599/U
3.00
(76.2)
383/U
3.00
(76.2)
383/U-M
3.00
(76.2)
385/U
2.00
(50.8)
387/U
2.00
(50.8)
387/U-M
2.00
(50.8)
Specifications
Waveguide
WR-42
WR-28
WR-22
WR-19
WR-15
WR-12
WR-10
WR-08
WR-06
WR-05
WR-04
WR-03
Frequency
(GHz)
18-26.5
26.5-40
33-50
40-60
50-75
60-90
75-110
90-140
110-170
140-220
170-260
220-325
VSWR
(Max.)
1.15
1.15
1.15
1.15
1.15
1.15
1.15
1.17
1.19
1.21
1.25
1.30
Power
(W)
0.70
0.60
0.60
0.50
0.40
0.40
0.30
0.10
0.08
0.05
0.03
0.01
Part Number
3-42-109
3-28-109
3-22-109
3-19-109
3-15-109
3-12-109
3-10-109
3-08-109
3-06-109
3-05-109
3-04-109
3-03-109
Notes:
1. When ordering, specify center frequency and attenuation value in 1 dB steps to 30 dB max.
Contact factory for high-power options
Specifications Subject to Change Without Notice.
M/A-COM, Inc.
North America:
Tel. (800) 366-2266
Fax (800) 618-8883
s
1
Asia/Pacific: Tel. +81 (03) 3226-1671
Fax +81 (03) 3226-1451
s
Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020
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