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Couplers (Broadwall, Sidewall, Crossguide & Loop)

Standard catalogue range:

Non standard range:

The Waveguide Solution offer a range of directional broad wall, side wall and cross guide couplers in 3 and 4 port configurations.  All couplers have been designed to offer low VSWR, flat response and high directivity over the entire designated waveguide band. Improvements in directivity and coupling value tolerances can be made for specified narrow band applications. The CC and DC series of couplers are manufactured with the full range of international flange styles as shown in the The Waveguide Solution Flange Catalogue with alternative plating and paint finishes on request. 

Cross Guide Couplers (3 Port)

Standard Rectangular
Specification:
Standard Coupling Values: 20dB, 30dB, 40dB
Nominal accuracy: ±.1dB, ±.1.5dB, ±.1.5dB
V.S.W.R.: 1.32max, 1.22max, 1.06max


Directivity: 20dB typical
Material: Brass
Finish: Blue Paint
3 port couplers have an internal load to give the best directivity performance

Operating Frequency Band (GHz)Waveguide DesignationDimension (mm)
UK WGIEC RE.I.A. WRABCD
2.60 – 3.95103228433420436229
3.30 – 4.9011A4022928815331212
3.95 – 5.85124818724815324172
5.85 – 8.20147013719210217141
7.05 – 10.0158411216710214116
8.20 – 12.4016100901417612103
10.0 – 15.01712075121761182
12.4 – 18.0 181406211176973
18.0 – 26.520220428157554
26.5 – 40.022320287951554

Available in 20,30, and 40 dB Coupling only.
For other Coupling values contact the factory.
Please state frequency bandwidth when ordering

Cross Guide Couplers (4 Port)

Standard Rectangular
Specification:
Standard Coupling Values: 20dB, 30dB, 40dB
Nominal accuracy: ±.1dB, ±.1.5dB, ±.1.5dB
V.S.W.R.: 1.29max, 1.17max, 1.06max


Directivity: 20dB typical
Material: Brass
Finish: Blue Paint
the installed directivity of 4 port couplers depends on the match seen at the opposite arm

 

Operating Frequency Band (GHz)Waveguide DesignationDimension (mm)
UK WGIEC RE.I.A. WRABC
2.60 – 3.95103228420420436
3.30 – 4.9011A4022915315331
3.95 – 5.85124818715315324
5.85 – 8.20147013710210217
7.05 – 10.0158411210210214
8.20 – 12.401610090767612
10.0 – 15.01712075767611
12.4 – 18.0 181406276769
18.0 – 26.5202204257575
26.5 – 40.0223202851515

Available in 20,30, and 40 dB Coupling only.
For other Coupling values contact the factory.
Please state frequency bandwidth when ordering

Ordering Information - cross guide couplers

CC

Product code
CC = cross guide coupler

16

Waveguide size
British WG size for rectangular waveguide or MIL spec. WRD size for double ridge waveguide
e.g. 16 = WG16; 750 = WRD750
More

A

Type
A = standard 3 port
B = standard 4 port

Q

Paint
Q = TWS blue (preferred)
B = black
G = grey

Z

Finish
Z = unplated (preferred for brass / copper)
M = passivate (option for brass)
F = Iridite (preferred for aluminium)
H = chromate
A = tin
B = silver
More

402

Flange type (through arm - input arm)
Last 3 digits from the TWS flange part no.
e.g. 402 = UBR flange

402

Flange type (through arm - output)
Last 3 digits from the TWS flange part no.
e.g. 402 = UBR flange

402

Flange type (coupled arm)
Last 3 digits from the TWS flange part no.
e.g. 402 = UBR flange

402

Flange type (reverse coupled) - 4 port coupler only)
Last 3 digits from the TWS flange part no.
e.g. 402 = UBR flange

B

Material
A = aluminium
B = brass

40

Coupling Value
20 = 20dB
30 = 30dB
40 = 40dB

Directional Couplers (3 Port) broadwall

Standard Rectangular

Specification:
Standard Coupling Values: 10dB, 20dB, 30dB, 40dB
Nominal accuracy: ±.1.5dB, ± 1.5dB, ±.2dB, ± 2dB, WG20 -WG22 ±.2dB
Return loss secondary arm 27dB min
Flatness: ±.1dB

Directivity
WG 10 - 18 : 35dBmin over 75% bandwidth
WG 20 - 22 : 30dBmin over 50% bandwidth
full band spec. :  see table

Material: Brass
Finish: Blue Paint

 

Operating Frequency Band (GHz)Waveguide DesignationDirectivity Minimum (dB) (2)Return Loss (Primary) (dB)Dimension (mm)
UK WGIEC RE.I.A. WRABC
2.60 – 3.951032284253282677171
3.30 – 4.9011A40229253271857181
3.95 – 5.851248187253263551153
4.90 – 7.051358159253254632133
5.85 – 8.201470137253255443127
7.05 – 10.0158411225323952877
8.20 – 12.40161009025322873367
10.0 – 15.0171207525322892269
12.4 – 18.0 181406225322491960
18.0 – 26.5202204215321581938
26.5 – 40.0223202815321621935

Available in10, 20, 30 and 40 dB Coupling values.
Narrow band designs for 3, 6, 10 and 12 dB are available, however other electrical and mechanical parameters may change.
Please contact factory for details.
Please state frequency bandwidth when ordering.

Directional Couplers (4 Port) broadwall

Standard Rectangular

Specification:
Standard Coupling Values: 10dB, 20dB, 30dB, 40dB
Nominal accuracy: ±.1.5dB, ± 1.5dB, ±.2dB, ± 2dB, WG20 -WG22 ±.2dB
Return loss secondary arm 22dB min
Flatness: ±.1dB

Directivity
WG 10 - 18 : 35dBmin over 75% bandwidth
WG 20 - 22 : 30dBmin over 50% bandwidth
full band spec. :  see table

Material: Brass
Finish: Blue Paint

note that this style of broadwall coupler is unsuitable for reflectometer applications as the directivities are dependant on the match seen on the opposite arms

 

Operating Frequency Band (GHz)Waveguide DesignationDirectivity Minimum (dB)Return Loss (Primary) (dB)Dimension (mm)
UK WGIEC RE.I.A. WRABC
2.60 – 3.951032284253271877171
3.30 – 4.9011A40229253267357181
3.95 – 5.851248187253256651153
4.90 – 7.051358159253250133132
5.85 – 8.201470137253246743127
7.05 – 10.0158411225322982876
8.20 – 12.40161009025321633367
10.0 – 15.0171207525322472264
12.4 – 18.0 181406225322062260
18.0 – 26.5202204215321522238
26.5 – 40.0223202815321271638

Available in10, 20, 30 and 40 dB Coupling values.
Narrow band designs for 3, 6, 10 and 12 dB are available, however other electrical and mechanical parameters may change.
Please contact factory for details.
Please state frequency bandwidth when ordering.

High Directivity Directional Couplers (3 Port) broadwall

Standard Rectangular High Directivity

Specification:
Mean Coupling: ±.0.5dB over the respective bandwidth for all standard coupling values
Coupling sensitivity: ±.0.75dB about the mean coupling value over the specified frequency band
Return loss: secondary arm 27dB min
Material: Brass
Finish: Blue Paint, Silver plated flanges

High directivity designs shown are available in 10, 20, 30 and 40dB
Please contact factory for further details.
Please state frequency bandwidth when ordering

Ordering Information - broadwall couplers

DC

Product code
DC = directional broadwall coupler
SC = directional sidewall coupler

16

Waveguide size
British WG size for rectangular waveguide or MIL spec. WRD size for double ridge waveguide
e.g. 16 = WG16; 750 = WRD750
More

A

Type
A = standard 3 port
B = standard 4 port
D = high directivity 3 port

Q

Paint
Q = TWS blue (preferred)
B = black
G grey

Z

Finish
Z = unplated (preferred for brass / copper)
M= passivate (option for brass
F = Iridite (preferred for aluminium)
H = chromate
A = tin
B = silver
More

402

Flange type (through arm - input arm)
Last 3 digits from the TWS flange part no.
e.g. 402 = UBR flange

402

Flange type (through arm - output)
Last 3 digits from the TWS flange part no.
e.g. 402 = UBR flange

402

Flange type (coupled arm)
Last 3 digits from the TWS flange part no.
e.g. 402 = UBR flange

402

Flange type (reverse coupled) - 4 port coupler only)
Last 3 digits from the TWS flange part no.
e.g. 402 = UBR flange

B

Material
A = aluminium
B = brass

40

Coupling Value
20 = 20dB
30 = 30dB
40 = 40dB

Sidewall Couplers

A variety of sidewall couplers with different layouts are available depending on application

These can be designed to customer specifications / layouts

Please contact the factory with the specification and frequency range required

Loop Couplers

The Waveguide Solution has a small but increasing range of loop couplers - please contact the factory.