 click here to view PDF: Double Ridge Waveguide Topwall Couplers
Space Machine custom fabricates a standard product line of double ridge topwall couplers covering waveguide sizes WRD180 thru WRD200. Coupling variation is typically ± 2dB over the full waveguide band. Directivity is 20dB minimum. Additional sizes and configurations are available upon request. 
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Model
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WRD #
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Frequency (GHz)
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A
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B
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C
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DRT180-
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180
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18.00 - 40.00
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12.00
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1.30
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1.40
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DRT110-
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110
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11.00 - 26.50
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16.00
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1.30
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1.70
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DRT750-
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750
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7.50 - 18.00
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22.00
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1.60
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2.00
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DRT650-
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650
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6.50 - 18.00
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22.00
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1.60
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2.00
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DRT580-
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580
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5.80 - 16.00
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22.00
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1.60
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2.00
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DRT500-
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500
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5.00 - 18.00
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22.00
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1.60
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2.00
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DRT475-
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475
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4.75 - 11.00
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32.00
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1.80
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2.40
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DRT350-
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350
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3.50 - 8.20
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35.00
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2.00
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2.70
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DRT250-
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250
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2.60 - 7.80
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40.00
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2.20
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3.00
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DRT200-
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200
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2.00 - 4.80
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40.00
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2.75
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5.00
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All dimensions are in inches.
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Ordering Information
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DRT |
wrd |
-m |
c |
cp |
-f1 |
f2 |
-p |
f |
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Double Ridge Topwall Coupler, WRD500, Aluminum, 30 dB Coupling, Type N Female Coupled Port, Gasket Flanges, Chromated, Paint Space Machine Gray.
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Example part number:
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DRT |
500 |
-A |
30 |
NF |
-02 |
02 |
-C |
P
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Series (DRT):
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| Waveguide Size (wrd): WRD180 thru WRD200 |
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Material (m): A – Aluminum
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| Coupling (c): 20 - 60 dB |
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Coupled Port (cp): Connector - See AppendixE Flange - See Appendix F and H
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Flange (-f1 f2): See Appendix F and H
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Plating (-p): C – Chromate, S – Silver,
G – Gold, O – Other, N – None
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Finish (f): P – Paint Space Machine Gray,
N – None, O – Other
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