Tel
631-231-8400
Fax
631-434-1116
E-mail
sales@arra.com


Assemblies, Special

Bends

Bulkhead Feed-Thrus

Couplers

Flexible Waveguide

Phase Shifters

Pressure Windows

Pressurization Sections

Shorts

Straight Sections

Switches

Tees

Terminations

Twists

 


Waveguide Fixed Attenuators

Flat with Frequency

 Options  Models

General Specifications
VSWR 1.15 max
1.20 for WR42 & WR28
Attenuation 3, 6, 10, 20 dB
(other values on request)
Material Aluminum
Flange Type Cover Standard
Finish ARRA Blue per
MIL-C-22750
Form Factor 7252

Options
1. For brass material, add B to basic model number.
2. For cover/choke flange, add -1.
3. For choke/choke flange, add -2.
4. For CPR or other flange, precede model number with flange type.
Ex: CPR137G-482-20


Model 137-482-10


Model 90-482-10

 

* To complete model number, add value of attenuation in dB. Ex: 90-482-10
** Available over narrow bandwidths only.
 Freq
Range (GHz)
Waveguide
Size
Atten Value
(dB)
Atten vs Freq
(±dB)
RF Power
(Avge W)
Length
(In)
Model No.*
2.60-3.95 WR284 3-10
11-20
1.0
2.0
10.0
10.0
13.50
13.50
284-482-
3.30-4.90 WR229 3-10
11-20
1.0
2.0
8.0
8.0
12.0
12.0
229-482-
3.95-5.85 WR187 3-10
11-20
1.0
2.0
5.0
5.0
10.0
10.0
187-482-
4.90-7.05 WR159 3-10
11-20
1.0
1.7
5.0
5.0
9.00
9.00
159-482-
5.85-8.20 WR137 3-10
11-20
1.0
1.5
4.0
4.0
8.00
8.00
137-482-
7.05-10.0 WR112 3-10
11-20
1.0
1.5
1.0
1.0
4.75
4.75
112-482-
7.00-11.0 WR102 3-10
11-20
1.0
1.5
1.0
1.0
4.25
4.25
102-482-
8.20-12.4 WR90 3-10
11-20
1.0
1.5
1.0
1.0
3.50
3.50
90-482-
10.0-15.0 WR75 3-10
11-20
1.0
1.5
1.0
1.0
3.25
3.25
75-482-
12.4-18.0 WR62 3-10
11-20
1.0
2.0
1.0
1.0
3.00
3.00
62-482-
18.0-26.5 WR42 3-10
11-20
1.5
2.0
1.0
1.0
2.63
2.63
42-482-
26.5-40.0** WR28 3-10
11-20
1.5
2.0
1.0
1.0
2.40
2.40
28-482-


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