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Waveguide Terminations

Sliding Loads

Standard Rectangular

V.S.W.R.

See table (based on spot frequency operation)

Material

Brass

Load material

Iron loaded resin

Finish

Blue Paint, Silver Plated  Flanges

Width/Height

 

Operating Frequency Band (GHz)

Waveguide Designation

PART NUMBER

Max V.S.W.R.

Max Power Watts C.W.

Overall Length “A” (mm)

UK

WG

IEC

R

E.I.A.

WR

2.60 – 3.95

10

32

284

SL 10 –SQB- (***)-B

1.01

3

790

3.30 – 4.90

11A

40

229

SL 11A –SQB- (***)-B

1.01

2

526

3.95 – 5.85

12

48

187

SL 12 –SQB- (***)-B

1.01

2

414

4.90 – 7.05

13

58

159

SL 13 –SQB- (***)-B

1.01

2

332

5.85 – 8.20

14

70

137

SL 14 –SQB- (***)-B

1.01

1

336

7.05 – 10.0

15

84

112

SL 15 –SQB- (***)-B

1.01

1

323

8.20 – 12.40

16

100

90

SL 16 –SQB- (***)-B

1.01

0.8

331

10.0 – 15.0

17

120

75

SL 17 –SQB- (***)-B

1.01

0.8

321

12.4 – 18.0

18

140

62

SL 18 –SQB- (***)-B

1.01

0.6

321

15.0 – 22.0

19

180

51

SL 19 –SQB- (***)-B

1.02

0.6

225

18.0 – 26.5

20

220

42

SL 20 –SQB- (***)-B

1.02

0.6

107

22.0 – 33.0

21

260

34

SL 21 –SQB- (***)-B

1.02

0.6

107

26.5 – 40.0

22

320

28

SL 22 –SQB- (***)-B

1.035

0.5

100

*** For 3 Digit Rectangular Flange part number, please contact us.

 

Fixed Loads

Standard Rectangular

Material

Brass

Load material

Iron loaded resin

Finish

Blue Paint, Silver Plated  Flanges

Width/Height

 

Operating Frequency Band (GHz)

Waveguide Designation

PART NUMBER

Max V.S.W.R.

Max Power Watts C.W.

Overall Length “A” (mm)

UK

WG

IEC

R

E.I.A.

WR

2.60 – 3.95

10

32

284

FL 10 –SQB- (***)-B

1.02

5

310

3.30 – 4.90

11A

40

229

FL 11A –SQB- (***)-B

1.02

4

225

3.95 – 5.85

12

48

187

FL 12 –SQB- (***)-B

1.02

3.5

235

4.90 – 7.05

13

58

159

FL 13 –SQB- (***)-B

1.02

3.5

190

5.85 – 8.20

14

70

137

FL 14 –SQB- (***)-B

1.02

2

185

7.05 – 10.0

15

84

112

FL 15 –SQB- (***)-B

1.02

2

143

8.20 – 12.40

16

100

90

FL 16 –SQB- (***)-B

1.02

1.3

138

10.0 – 15.0

17

120

75

FL 17 –SQB- (***)-B

1.02

1.3

127

12.4 – 18.0 

18

140

62

FL 18 –SQB- (***)-B

1.02

1

86

15.0 – 22.0

19

180

51

FL 19 –SQB- (***)-B

1.025

1

79

17.7 – 26.5

20

220

42

FL 20 –SQB- (***)-B

1.035

0.8

94

22.0 – 33.0

21

260

34

FL 21 –SQB- (***)-B

1.035

0.8

67

26.5 – 40.0

22

320

28

FL 22 –SQB- (***)-B

1.05

0.6

66

*** For 3 Digit Rectangular Flange part number, please contact us.

 

Double Ridge

Material

Aluminium

Load material

Iron loaded resin

Finish

Blue paint, chromated / iridited flanges

Width/Height

 

Operating Frequency Band (GHz)

Waveguide Designation

Part Number

Max V.S.W.R.

Max Power Watts C.W.

Overall Length “A” (mm)

4.75 – 11.0

WRD475 D24

FL 10 –SQH- (***)-B

1.04

11

386

5.8 – 16.0

WRD580 D28

FL 11A –SQH- (***)-B

1.04

8

300

6.5 – 18.0

WRD650 D28

FL 12 –SQH- (***)-B

1.05

7

252

7.5 – 18.0

WRD750 D24

FL 13 –SQH- (***)-B

1.05

7

237

18.0 – 40.0

WRD180 C24

FL 14 –SQH- (***)-B

1.06

5

128

*** For 3 digit Double Ridge Waveguide Flange Part number, please contact us.

 

 

High Power Fixed Loads

The range of high power waveguide loads is continually being expanded. The power rating depends on the waveguide size ambient temperatures and the fin area available, (e.g. the two WG17 loads shown below have power ratings of 800W and 500W and the WG10 load 2000W), but for very high power requirements, either multiple load elements and internal power splitters or a custom load element is designed in house for optimum heat distribution. All load elements are made from silicon carbide which is thermally bonded to the heatsink and have a match better than 1.1:1. 

The majority of loads have optimum heat dissipation when mounted horizontally, but fin arrangements are also available for vertical mounting if necessary. Please consult the factory for higher power ratings and support bracketry.

Operating Frequency Band (GHz)

Waveguide Designation

PART NUMBER

Max V.S.W.R.

UK

WG

IEC

R

E.I.A.

WR

2.60 – 3.95

10

32

284

FL 10 –HBH- (***)-B

1.1

3.30 – 4.90

11A

40

229

FL 11A –HBH- (***)-B

1.1

3.95 – 5.85

12

48

187

FL 12 –HBH- (***)-B

1.1

4.90 – 7.05

13

58

159

FL 13 –HBH- (***)-B

1.1

5.85 – 8.20

14

70

137

FL 14 –HBH- (***)-B

1.1

7.05 – 10.0

15

84

112

FL 15 –HBH- (***)-B

1.1

8.20 – 12.40

16

100

90

FL 16 –HBH- (***)-B

1.1

10.0 – 15.0

17

120

75

FL 17 –HBB- (***)-B

1.1

12.4 – 18.0

18

140

62

FL 18 –HBB- (***)-B

1.1

18.0 – 26.5

20

220

42

FL 20 –HBB- (***)-B

1.1

26.5 – 40.0

22

320

28

FL 22 –HBB- (***)-B

1.1

*** For 3 Digit Rectangular Flange part number, please contact us.