dolphmicrowave

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Industrial Microwave Bends

Dolph Microwave offers Industrial Microwave Bends for 915 and 2450MHz, which includes both E-bends and H-bends. All units are precisely bending to the desired angle. At the same time, maintaining a constant cross section to minimize energy reflection. Besides, this family of Industrial Microwave Bends, also boast low loss, and VSWR as low as 1.06:1 and are available in both E-bends and H-bends configurations. Taking the WR340(2450MHz) for example.

Ordering Guide of Industrial Microwave Bends

Datasheet of Industrial Microwave Bends

WR340 Waveguide Bend

Electrical Specifications

Model

DH-26WHB/WEB_A*B

Frequency Range

2.17-3.3 GHz

VSWR

≤1.1:1

Insertion Loss

≤0.05 dB

Mechanical Specifications

Waveguide Type

WR340

Type of Bend

H-Bend/E-Bend

Flange Type

FBP26 (Cover)/FBM26 (Grooved)

Material

Aluminum

Inside Finish

Conductive Oxidation

Outside Finish

Anticorrosion Black/White Paint

Size(mm)

A=** mm, B=** mm

Diagram of Industrial Microwave Bends

FAQs of Industrial Microwave Bends

FAQs of Industrial Microwave Bends

Application of Industrial Microwave Bends

Industrial Microwave Bends is used to guide high frequency signals propagating in a specific direction through the waveguide. Because of these bends, the signal is allowed to change direction within the waveguide, thereby minimizing losses, reflections, and distortions in the electric and magnetic fields.

Features of Industrial Microwave Bends

Industrial Microwave Bends include E-bends and H-bends. E-bends alters or distorts the E-field (electric field) of a propagating signal. H-bends alters or distorts the H-field (magnetic field) of a propagating signal. The bend angle is usually 30, 45 or 90 degrees.

[dolphmicrowave]

Flexible Waveguide

Dolph Microwave manufactures a quality line of flexible twistable/non-twistable waveguides, specially designed to meet all of your requirements. The components is made from a helically wound waveguide core and additional mechanical support is offered from a variety of protective jackets.

The Flexible Waveguide is parts of Feeder line, compared with the rigid waveguide, which is not only reduces the difficulty of connection, but also keep connection accuracy. The Rectangular Flexible Waveguide has E bend and H bend function including twisted function.

Ordering Guide of Flexible Waveguide

Ordering Information of Flexible Twistable Waveguide

Ordering Information of Flexible Twistable Waveguide

Ordering Information of Flexible Non-twistable Waveguide

Flange type: Multiple types available - see Dolph Microwave Flanges page.

Datasheet of Flexible Waveguide

ELECTRICAL SPECIFICATIONS

Waveguide Designation

Freq.Range

(GHz)

Insertion

Loss(dB/m)

Suggested Power Limit

Return Loss (dB)

Peak(MW)

Average(KW)

300mm

600mm

900mm

1000mm

1200mm

1500mm

1800mm

R40

WR229

WG11A

3.22-4.90

0.15

1.6

5

31.0

28.8

28.3

28.3

27.8

27.3

26.3

R48

WR187

WG12

3.94-5.99

0.16

1.4

3

31

28.8

28.3

28.3

26.4

23.1

21.7

R58

WR159

WG13

4.64-7.05

0.18

0.6

2.5

31

28.3

27.8

27.8

26.4

23.1

21.7

R70

WR137

WG14

5.38-8.17

0.25

0.56

2

30.2

27.8

27.3

27.3

26.4

23.1

21.7

R84

WR112

WG15

6.57-9.99

0.3

0.33

1.5

30.2

27.3

27.1

27.1

26.4

23.1

21.7

R100

WR90

WG16

8.20-12.5

0.4

0.22

1

30.2

27.1

27

27

25.2

22.1

19.7

R120

WR75

WG17

9.84-15

0.5

0.18

0.75

29.4

27

26.4

26.4

24

20.93

19.7

R140

WR62

WG18

11.9-18

0.65

0.12

0.4

29.4

26.4

26

26

24

20.93

19.7

R220

WR42

WG20

17.7-26.5

1.2

0.045

0.1

23

22.1

21.1

21.1

-

-

-

R320

WR28

WG22

26.5-40

2

0.022

0.075

21

20.8

20.8

20.8

-

-

-

R400

WR22

WG23

33-50

2.5

-

-

20

16.5

15.6

16

-

-

-

MECHANICAL SPECIFICATIONS

Waveguide Designation

Max Twist(Deg/m)

Min E-Bending Radii(mm)

Min H-Bending Radii(mm)

Static

Repeated

Static

Repeated

Static

Repeated

R40

WR229

WG11A

132

33

165

660

330

1320

R48

WR187

WG12

155

40

136

544

272

1088

R58

WR159

WG13

185

45

116

464

232

928

R70

WR137

WG14

210

52

100

400

200

800

R84

WR112

WG15

260

68

82

328

164

656

R100

WR90

WG16

315

76

66

264

132

528

R120

WR75

WG17

365

92

54

216

108

432

R140

WR62

WG18

445

112

46

184

92

368

R220

WR42

WG20

630

157

30

120

60

240

R320

WR28

WG22

920

230

20

80

40

160

R400

WR22

WG23

920

230

18

78

38

158

*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 below for complete part number.

** Please refer to the Technical Reference section for flange types/connectors details. Please contact us for your specific requirements.

[dolphmicrowave]

Double Ridged Flexible Waveguide

Flexible waveguide products can be divided into flexible waveguide (interlocked flexible waveguide) and non-twisting flexible waveguide (seamless flexible waveguide). Flexible flexible waveguide has the bending and twisting functions of e-plane and h-plane, while non-twisting flexible waveguide has the characteristics of low loss and good air tightness.

The double-ridged flexible waveguide assembly is mainly composed of inner conductor, flange and outer sheath. The inner conductor is ridged corrugated tube, and the attenuation performance can be greatly improved by surface silver plating. Flange chooses copper or aluminum manufacturing to meet the needs of different customers; The black silicone rubber sheath can protect the soft waveguide and ensure the suitable performance of the soft waveguide in various environments.

Ordering Guide of Double Ridged Flexible Waveguide

Flange type: Multiple types available - see Dolph Microwave Flanges page.

Finish: Corrosion protection plus black top coat.

Datasheet of Double Ridged Flexible Waveguide

Product model

Frequency

(GHz)

VSWR

Loss

(dB/m)

Min. bending radius

Flange

E -（mm）

H -（mm）

DH-580DRWEL...PM

5.8-16

≤1.25

1.5

105

210

FP/FM

DH-650DRWEL...PM

6.5-18

≤1.30

1.65

90

180

FP/FM

DH-750DRWEL...PM

7.5-18

≤1.30

1.65

85

170

FP/FM

DH-1800DRWEL...PM

18-40

≤1.50

3.42

55

110

FP/FM

Advantage of Double Ridged Flexible Waveguide

Wider bandwidth than rectangular waveguides.

Lower cutoff frequency compared to similar sized non-ridge waveguide.

Replacement for planar transmission lines where enhanced power handling is needed in a compact space.

Application of Double Ridged Flexible Waveguide

The double ridge flexible waveguide are used in situations where increased bandwidth is desired. The flexible waveguide allows mechanical movement (expansion and contraction) and also handles any vibration effects. It is often used to connect antenna with the transmitter part of the wireless system when their positions are not fixed a well as the connection of waveguide feeder, which can not only reduce the difficulty of connection of hard waveguide components, ensure the connection accuracy, but also keep the electrical performance unchanged in the state of bending and torsion.

[dolphmicrowave]

Waveguide Components

Dolph Microwave R&D and manufactures various of standard waveguide component, double ridged waveguide components, industrial microwave components, customized waveguide components, satcom antenna and antenna feeds&RF networks for almost any frequency range you are interested in.

One-stop solution is eagered to be offered for customer in field like Telecommunication, Defense, Aerospace, Electronic warfare, Industrial microwave etc.

Each of Dolph microwave manufactured waveguide components, satcom antenna and feed networks are manufactured with the best specifications exceed over your expectation. Most of them meet MIL standard requirements.

Any interested components or need to discuss with us, please call +86-29-8881-0979 or mail to sales@dolphmicrowave.com

Types of Waveguide Components

Dolph Microwave as leading manufacturer offers high quality and wide range product, which includes standard and double ridged waveguide components, Industrial microwave components, Satcom antenna and feed networks.

Advantages of Waveguide Components

High Performance

Qualified Raw Material

The main advantage of Dolph Microwave product is carrying with low intersion loss and near perfect VSWR (return loss) closed to 1.

Similarities and Differences of Antennas and Waveguides

Similarities

Both antennas and waveguides belong to electromagnetic components.

Antennas and waveguides transmit/received signal by required power and frequency.

Differences

Antennas transmit signals is wireless in a medium normally, however waveguides transmit wireless signals by metal like aluminum, brass and copper.

Antennas can cover various frequency range which is from low and high, but waveguides range is not very broad.

The antenna efficiency can be specified, but wavegiudes gain is defined by the operation mode.

The antenna efficiency and bandwidth are fixed over the specific frequency range, but it also depends on the mode of waveguide.

Antennas are suitable for long distances signal transmission but waveguides are not.

[dolphmicrowave]

DOLPH CUSTOMIZED WAVEGUIDE TO MEET YOUR NEED

Our microwave components are divided into standard and customized components, which can solve the special requirements of customers on flange, dimension, technical parameter and frequency range.

Microwave Customized Products

Dolph Microwave is specialised in design and manufacture of custom RF systems, which is mainly for Government, Military and Defence. Designed to address customer-specific Signals Intelligence (SIGINT) requirements.

We also design and supply fully customised RF systems meeting specific requirements. Complete systems can be provided for mounted or dismounted applications in land or maritime environments. We have an on-site hybrid anechoic chamber where we undertake pre-compliance measurements of our product's electromagnetic compatibility and verify system level performance of antenna systems.

We can offer product and application:

Microwave, Satcom Antennas

FeedHorn & Network Systems

Optical signal transmission

Spectrum monitoring

HF/VHF/UHF

Cellular/ISM bands

Commercial and Military Satcom

Direction Finding

GNSS

EMP/EMC

Process of Customization Service

04

Confirmation of Order

05

Dolph Microwave Datasheet

06

Production Confirmation

07

Delivery

01

Inquiry (technical parameter+drawing)

02

Checking and Eveluation

03

Details discussion

04

Confirmation of Order

Advantages of Dolph Microwave's Customized Waveguide

High Performance

With our highly professional and qualified team, the required parameter will be guaranteed. The customized system will be reliable and complete pre-sale and after-sale service.

Systemetic Test

When finished production and before delivery, each components will be done a systemetic test to assure the delivered components are qialified.

Short Delivery

Promised lead time will be around 4 weeks. For complicated system or components requirement, it will be in priority production to meet delivery requirement.

Popular Waveguide Components

[dolphmicrowave]

Double Ridged Waveguide Tube

Dolph Microwave Double-ridge waveguide tubes are rectangular waveguide tube with two ridges protruding parallel to the short wall. Double-ridge waveguide tube are widely used in antenna and microwave systems since they exhibit low cut-off frequency, broad frequency band, low characteristic impedance, and capability of matching to coaxial cable.

Waveguide Tube Ordering Guide

Flange type: Multiple types available - see Dolph Microwave Flanges page.

Finish: Corrosion protection plus black top coat.

Waveguide Tubing Specifications

Double Ridge Waveguide Tubing Information

WG Model

Technical Specifications

Innner Diameter Size(mm)

Diameter Size(mm)

National Standard

American Standard

Freq. Range

TE10(GHz)

Cut-off Frequency.

A

B

Devi. (±)

E

±▲E

Rmax

R±10%

H

±▲H

C

D

Devi. (±)

TE10

TE20

24JS2000

WRD200D24

2.000~4.800

1.666

4.925

65.79

30.61

0.10

13.00

0.05

1.27

2.59

16.46

0.05

69.85

34.67

0.10

30JS2500

WRD250D30

2.60~7.80

2.093

42.04

18.16

0.08

3.81

0.05

0.51

2.34

11.18

0.05

46.10

22.22

0.10

24JS3500

WRD350D24

3.500~8.200

2.915

8.620

37.59

17.48

0.08

7.42

0.05

0.76

1.47

9.40

0.05

40.84

20.73

0.10

24JS4750

WRD475D24

4.750~11.00

3.961

11.705

27.69

12.85

0.08

5.46

0.05

0.76

1.09

6.91

0.05

30.23

15.39

0.08

36JS5000

WRD500D36

5.00~18.00

4.222

19.10

8.20

0.08

1.60

0.05

0.38

0.33

4.78

0.05

21.64

10.74

0.08

28JS5800

WRD580D28

5.80~16.00

4.892

19.81

9.40

0.08

3.05

0.05

0.38

1.09

5.08

0.05

22.35

11.94

0.08

28JS6500

WRD650D28

6.50~18.00

5.348

18.29

8.15

0.08

2.57

0.05

0.51

0.56

4.39

0.05

20.85

10.69

0.08

24JS7500

WRD750D24

7.500~18.00

6.239

18.464

17.55

8.15

0.08

3.45

0.05

0.51

0.69

4.39

0.05

20.09

10.69

0.08

26JS7000

WRD700D26

7.00~18.50

5.679

17.42

7.87

0.08

2.67

0.05

0.51

0.58

4.39

0.05

19.96

10.41

0.08

24JS11000

WRD110C24

11.00~26.50

9.363

27.080

11.96

5.56

0.08

2.36

0.05

0.38

0.48

3.00

0.05

14.00

7.59

0.08

24JS18000

WRD180C24

18.00~40.00

14.995

44.285

7.32

3.40

0.05

1.45

0.05

0.38

0.28

1.83

0.05

9.35

5.44

0.08

[dolphmicrowave]

Double Ridged Waveguide Switches

Dolph Microwave series model's frequency are covering from 2.60 GHz to 110GHz. Usually, in accordance with drive modes, they can be classified into sub-electric and manual; If by structure, they are classified into sub-E and H-waveguide transfer switches, with rectangular waveguide transfer switches and double ridge waveguide transfer switches. Wave guide switch is commonly used to change the signal pathway in the waveguide transmission system. Taking WRD750 type as below.

Waveguide Transfer Switches Ordering Guide

Flange type: Multiple types available - see Dolph Microwave Flanges page.

Finish: Corrosion protection plus black top coat.

Waveguide Transfer Switches Datasheet

WRD750 Waveguide Electronic Switch

Electrical Specifications

Model

DH-750DWESMDC

Frequency Range

7.5-18.0 GHz

VSWR

≤1.3:1

Isolation

≥50 dB

IL

≤0.4 dB

Handling Power

2000 W (CW)

Switch Speed

120ms

Switch Type

Double Pole Double Throw (DPDT)

Actuator Type

Latching

Actuator Options

TTL Logic, Self Cut Off, Window Indicator,

TTL Control

on: 2.4 to 5.5 Volts

off: 2.4 to 5.5 Volts

Power Voltage

27V±10% ( 0.5A )

Control Interface

6-pin Aviation Plug (Customizable)

Life

≥100,000 Cycles

Mechanical Specifications

Waveguide Type

WRD750

Flange

FPWRD750D24

Ingress Protection Rating

IP67

Pressure

Up to 30 PSIG

Temperature

-40℃~+80℃

Humidity

0-100%

Material

Al/Cu

Inside Finish

Conductive Oxidation

Outside Finish

Anticorrosion Grey Paint

Control Interface Specification

MS3102E14S-6P Connector Pin Instructions

Pin Number

A

B

C

D

E

F

Purpose

Power supply/grounding

Grounding/power supply

Connect to micro switch

Connect to micro switch

Connect to micro switch

Connect to micro switch

Waveguide Sitch Control Interface Signal Definition

MS3102E14S-6P

Definition

Description

A

Power supply/grounding

Switching power supply, when A is connected to +27V and B is grounded for a duration of 120ms±20ms, the switch is in state I (J0 and J1, J2 and J3 are on).

B

Grounding/power supply

Switching the power supply, when A is grounded, B is connected to +27V, and the duration is 120ms±20ms, the switch is in state II (J0 and J2, J1 and J3 are on).

C

Connect to micro switch

Switch state signal, when the switch is in state I, pins C and D are turned on.

D

Connect to micro switch

It is recommended to connect the signal voltage +5V (connect a 100Ω resistor in series)

E

Connect to micro switch

It is recommended to connect the signal voltage +5V (connect a 100Ω resistor in series)

F

Connect to micro switch

Switch state signal, when the switch is in state II, pins E and F are turned on.

Waveguide Switch Design

Wave guide Switches Details

Waveguide Transfer Switches Advantage：

The double ridge waveguide switches have higher performing switch mechanisms. With double-ridged waveguide, a nearly complete short circuit can be made by merely bridging the reduced distance between the ridges. It places switching elements within the gap of the ridges.

Waveguide Transfer Switches Types：  

The double ridge waveguide transfer switches mainly used for changing the signal channel of waveguide transmission system, according to drive mode which divided to motorized and manual.

[dolphmicrowave]

Double Ridged Waveguide Horn Antennas

As a professional horn antenna manufacturer, Dolph Microwave manufactures a high-quality line of double-ridged waveguide horn antennas typically used for EMI testing, surveillance equipment, antenna gain and pattern measurement, which available in WRD1800, WRD750, WRD700, WRD650, WRD580, WRD475, WRD200, WRD180 etc. Also, wide band double ridged waveguide horn antenna are still can be offered from 0.2GHz to 40GHz. The most common Gain values available are 4-20dB. Taking wide band double ridged guide horn antenna as example below.

Double Ridged Waveguide Horn Antennas Ordering Guide

Wideband Dual-Ridged Horn Antenna Ordering Information

Ordering Information of Wideband Dual-Ridged Horn Antenna

Double Ridged Horn Antenna Ordering Information

Ordering Information of double ridged horn antenna

Flange type: Multiple types available - see Dolph Microwave Flanges page.

Finish: Corrosion protection plus black top coat.

Double Ridged Waveguide Horn Antennas Datasheet

Model No

Freq Range (GHz)

Gain (dB)

VSWR (Typ.)

Dimensions (mm)

Connector

L

W

H

DH-WDB0.2-2

0.3-2

4-13

2.5

600

510

840

N-Female

DH-WDB0.3-2

0.3-2

4-15.5

2.0

555

350

528

N-Female

DH-WDB0.4-4

0.4-4

6-17

2.0

440

285

448

N-Female

DH-WDB0.4-1

0.4-1

6.5-12

2.0

455

345

530

N-Female

DH-WDB0.8-8

0.8-8

6-15

2.0

284

164

260

N-Female

DH-WDB0.8-8F

0.8-8

4.8-12.5

2.5

110

260

250

N-/SMA-Female

DH-WDB0.8-18

0.8-18

6-15

2.0

220

130

212

N-Female

DH-WDB1-2

1.0-2.0

8-12

2.0

266

186

322

N-Female

DH-WDB1-4

1.0-4.0

5.5-12

2.0

156

108

152

N-Female

DH-WDB1-6

1.0-6.0

5.4-16

2.5

85

154

327

N-Female

DH-WDB1-12

1.0-12.0

6-13

2.0

245

140

200

N-Female

DH-WDB1-18

1.0-18.0

8.0-18

2.0

245

160

210

SMA-Female

DH-WDB1.5-5

1.5-5.0

＞10

2.0

280

240

400

N-Female

DH-WDB2-4

2.0-4.0

11.0-14.5

2.0

221

181

327

N-/SMA-Female

DH-WDB2-4H

2.0-4.0

11.9-17.4

2.0

224

154

384

N-/SMA-Female

DH-WDB2-7

2.0-7.0

9.0-14

2.0

154

129

210

N-/SMA-Female

DH-WDB2-8

2.0-8.0

＞10

2.0

194

134

270

N-Female

DH-WDB2-10

2.0-10.0

10.0-19

2.0

100

80

120

N-/SMA-Female

DH-WDB2-18

2.0-18.0

6.5-18

2.0

104

84

168

N-/SMA-Female

DH-WDB3-10

3.0-10.0

7.0-15

2.0

112

39

162

N-Female

DH-WDB4-8

4.0-8.0

15.0-19.0

2.0

250

130

349

N-Female

DH-WDB4-20

4.0-20.0

6.0-14.0

2.0

63

43

98

SMA-Female

DH-WDB5-10

5.0-10.0

15.0

2.0

124

104

222

N-Female

DH-WDB5-30

5.0-30.0

10.0-16

2.0

76

61

106

K-/SMA-Female

DH-WDB6-18

6.0-18.0

9.0-15.5

2.0

58

43

91

N-/SMA-Female

DH-WDB5-30

5.0-30.0

10.0-16

2.0

76

61

106

K-/SMA-Female

DH-WDB5-30

5.0-30.0

10.0-16

2.0

76

61

106

K-/SMA-Female

*Indicates Model Number. See Ordering Information for complete part number.

Double Ridged Horn Antenna Design

Double Ridged Microwave Horn Antenna Details

Double Ridge Waveguide Horn Antenna  Characteristics

Uniform Gain

Low VSWR

Flexible Mounting Configuration

Double Ridged Waveguide Horn Antennas  Uses

For the horn type antenna, the most commonly used method to expand the frequency band is to add the ridge structure in the waveguide part and the horn opening part. The double ridge waveguide horn antenna is commonly used for horn antenna in microwave and EMC measurement. With EMI testing, the immunity and emissions tests typically measure noise containing frequency components spanning a much wider bandwidth.

[dolphmicrowave]

Double Ridged Waveguide Bulkhead Feedthrus

Dolph Microwave offers a standard product line of double-ridge bulkhead waveguide adapter covering the waveguide sizes WRD-180 thru WRD-475. Assemblies include hardware and silicone rubber bulkhead gasket for mounting purposes. VSWR is less than 1.10. Custom waveguide bulkhead flange patterns and waveguide lengths are available upon request.

Bulkhead Waveguide Adapter Ordering Guide

Flange type: Multiple types available - see Dolph Microwave Flanges page.

Finish: Corrosion protection plus black top coat.

Bulkhead Waveguide Adapter Datasheet

Model No*

WG Size

Freq Range (GHz)

Dimensions

Material

Finish

A

B

C

D

DH-110DRBFU…

WRD110C24

11.00-26.5

76.2

25.4

63.5

76.2

6061 AL

Chromated

DH-180DRBFU…

WRD180D24

18.00-40.00

76.2

25.4

63.5

76.2

6061 AL

Chromated

DH-475DRBFU…

WRD475D24

4.75-11.00

108.0

41.4

82.6

101.6

6061 AL

Chromated

DH-500DRBFU…

WRD500D36

5.00-18.00

95.3

35.1

73.2

88.9

6061 AL

Chromated

DH-580DRBFU…

WRD580D28

5.80-16.00

95.3

35.1

73.2

88.9

6061 AL

Chromated

DH-650DRBFU…

WRD650D28

6.50-18.00

95.3

35.1

73.2

88.9

6061 AL

Chromated

DH-750DRBFU…

WRD750D24

7.5-18.00

95.3

35.1

73.2

88.9

6061 AL

Chromated

*Indicates Model Number. See Ordering Information for complete part number.

Waveguide Bulkhead Diagram

Waveguide Bulkhead Details

Waveguide Bulkhead Features

The double ridge WG bulkhead feed unit covers 2.6 GHz to 110.0 GHz(WRD284 to WRD10). This bulkhead waveguide adapter could be tailor-made as customer's need.

Waveguide Bulkhead Application

The double ridge WG bulkhead feed unit will support when a waveguide system must pass through a pressurized wall or cabinet. A heavy mounting flange and a gasket provide secure sealing.