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Standard Fixed Loads

These devices are manufactured from selected waveguide tube. The flange interface is precisely controlled to offer the optimum performance.

Sliding Loads

The standard sliding loads are assembled in the same way as the standard fixed loads using selected waveguide tube and precise positioning of the flange interface. Operation of the sliding element is by a push/pull mechanism and a locking screw is provided for repetitive measurements.

High Power Loads

Designs for a limited range of rectangular high power/medium power loads are available on request.
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Sliding Loads

Standard Rectangular

 

Specification:

 

V.S.W.R.

See table (based on spot frequency operation)

Material:

 Brass

Load material

Iron loaded resin

Finish

Blue paint, silver plated flanges

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Operating Frequency Band (GHz)

Waveguide Designation

TWS 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, refer to the Flange Catalogue, or consult the factory.

Fixed Loads

Standard Rectangular

 

Specification:

 

Material:

 Brass

Load material

Iron loaded resin

Finish

Blue paint, silver plated flanges

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Operating Frequency Band (GHz)

Waveguide Designation

TWS 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

540

3.30 – 4.90

11A

40

229

FL 11A –SQB- (***)-B

1.02

4

440

3.95 – 5.85

12

48

187

FL 12 –SQB- (***)-B

1.02

3.5

407

4.90 – 7.05

13

58

159

FL 13 –SQB- (***)-B

1.02

3.5

350

5.85 – 8.20

14

70

137

FL 14 –SQB- (***)-B

1.02

2

305

7.05 – 10.0

15

84

112

FL 15 –SQB- (***)-B

1.02

2

250

8.20 – 12.40

16

100

90

FL 16 –SQB- (***)-B

1.02

1.3

210

10.0 – 15.0

17

120

75

FL 17 –SQB- (***)-B

1.02

1.3

195

12.4 – 18.0 

18

140

62

FL 18 –SQB- (***)-B

1.02

1

169

15.0 – 22.0

19

180

51

FL 19 –SQB- (***)-B

1.025

1

150

17.7 – 26.5

20

220

42

FL 20 –SQB- (***)-B

1.035

0.8

128

22.0 – 33.0

21

260

34

FL 21 –SQB- (***)-B

1.035

0.8

128

26.5 – 40.0

22

320

28

FL 22 –SQB- (***)-B

1.05

0.6

100

*** For 3 Digit Rectangular Flange part number, refer to the Flange Catalogue, or consult the factory.

Double Ridge

 

Specification:

 

Material:

Aluminium

Load material

Iron loaded resin

Finish

Blue paint, chromated / iridited flanges

Operating Frequency Band (GHz)

Waveguide Designation

TWS 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 consult the factory.

High Power Fixed Loads

Designs for a limited number of medium / high power loads are available - please contact the factory for details

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Operating Frequency Band (GHz)

Waveguide Designation

TWS PART NUMBER

Max V.S.W.R.

Max Power Watts

 C.W.

Overall Length “A”

 (mm)

Overall Width “B” (mm)

Outline Style

UK

WG

IEC

R

E.I.A.

WR

2.60 – 3.95

10

32

284

FL 10 –HBH- (***)-B

1.0187

1000

774

178

1

3.30 – 4.90

11A

40

229

FL 11A –HBH- (***)-B

1.087

1000

576

159

2

3.95 – 5.85

12

48

187

FL 12 –HBH- (***)-B

1.087

750

514

159

2

4.90 – 7.05

13

58

159

FL 13 –HBH- (***)-B

1.087

600

471

127

3

5.85 – 8.20

14

70

137

FL 14 –HBH- (***)-B

1.087

500

335

92

2

7.05 – 10.0

15

84

112

FL 15 –HBH- (***)-B

1.087

300

315

88

2

8.20 – 12.40

16

100

90

FL 16 –HBH- (***)-B

1.087

250

314

76

2

10.0 – 15.0

17

120

75

FL 17 –HBB- (***)-B

1.087

150

189

51

4

12.4 – 18.0

18

140

62

FL 18 –HBB- (***)-B

1.087

50

183

51

4

18.0 – 26.5

20

220

42

FL 20 –HBB- (***)-B

1.02

25

148

40

4

26.5 – 40.0

22

320

28

FL 22 –HBB- (***)-B

1.035

12

96

23

4

*** For 3 Digit Rectangular Flange part number, refer to the TWS Flange catalogue, or consult the factory.
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