Fixed Attenuators
18 - 325 GHz
3(WG) 109 Series
V2.00
Features
●
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
WR-22
WR-19
WR-15
WR-12
WR-10
WR-08
WR-06
WR-05
74-003
Pin
WR-04
74-004
Pin
WR-03
74-005
Pin
RF Mating
Flange
MIL-F-3922/
54-001-M 68-001 67B-006 67B-007 67B-008 67B-009 67B-010 74-001
Pin
74-002
UG
Reference
Pin
595/U
599/U
383/U
383/U-M
385/U
387/U
387/U-M
Contact Contact
Contact Contact Contact
Dim (Max.)
Inch (mm)
3.50
(88.9)
3.00
(76.2)
3.00
(76.2)
3.00
(76.2)
2.00
(50.8)
2.00
(50.8)
2.00
(50.8)
1.50
(38.1)
1.50
(38.1)
1.50
(38.1)
1.50
(38.1)
1.50
(38.1)
A
Specifications
Frequency
(GHz)
VSWR
Power
(W)
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
(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
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
18-26.5
26.5-40
33-50
0.70
0.60
0.60
0.50
0.40
0.40
0.30
0.10
0.08
0.05
0.03
0.01
40-60
50-75
60-90
75-110
90-140
110-170
140-220
170-260
220-325
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.
1
North America: Tel. (800) 366-2266
Fax (800) 618-8883
■
Asia/Pacific: Tel. +81 (03) 3226-1671
Fax +81 (03) 3226-1451
■
Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020