Waveguide Assemblies,

Double Ridged W/G, Straights Sections & Twists

ATM manufactures a wide variety of Double Ridged Waveguide assemblies specially designed for every customers unique requirements. For more information feel free to call us and discuss your needs with one of our design engineers.

Double Ridged W/G - Straight Sections and Twists

GENERAL SPECIFICATIONS
Electrical
VSWR:
Straights: 1.03 Typ., 1.05 Max.
Twists: 1.05 Typ., 1.08 Max.
Mechanical
Body: Aluminum
Flanges: Multiple types available - see ATM Std. Flanges
Finish: Unique corrosion resistant 316 stainless steel epoxy coating IAW MIL-F-14072

WG
Size

Freq.
(GHz)

Straight Sections
Model No*

90 Degree Twist**
Model No*

WRD250

2.60 - 7.80

250-120-12-C3-C3

250-340-12-C3-C3

WRD350

3.5 - 8.2

350-120-12-C3-C3

350-340-12-C3-C3

WRD475

4.75 - 11.0

475-120-6-C3-C3

475-340-8-C3-C3

WRD580

5.80 - 16.0

580-120-6-C3-C3

580-340-6-C3-C3

WRD650

6.50 - 18.0

650-120-6-C3-C3

650-340-6-C3-C3

WRD750

7.50 - 18.0

750-120-6-C3-C3

750-340-6-C3-C3

WRD180

18.0 - 40.0

180-120-4-C3-C3

180-340-4-C3-C3

Ordering Information	WR	- Mod	- L	- F1	- F2
W/G - Straights and Twists
Example part number:	475	-340	-12	-6	-6
Waveguide Size: (WR) WR250 thru WR580
Basic Model No. (-Mod): 120=Straight, 340=Twist
Length in inches (-L):
Flange 1 (-F1):
Flange 2 (-F2): See ATM Standard Flange page for more info.

* The Standard Model Numbers above are the most common parts ordered for size, material and flange. However, these models can easily be altered to accommodate your needs by using the Model # code system to the left.

** Twist direction option of ATM unless otherwise specified.