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Waveguide Compononts

 

 

Waveguide Straight Sections

Waveguide Bends

Waveguide Transitions

Flexible Seamless Waveguide

Flexible Twistable Waveguide

Waveguide-Coaxial Adapters

Waveguide Loads

Waveguide Gaskets

Waveguide Shorts

Waveguide Pressure Windows

 

DEEWAVE Electronics supply a variety of waveguide components, such as waveguide connectors, waveguide adapters, waveguide loads, and etc. And waveguide type information as below

 

Waveguide Type

Frequency Band Name

Recommended Frequency Band

Inner Dimensions of Waveguide Opening

(Inch)

(mm)

WR650

L Band (part)

1.15 — 1.72

6.500 × 3.250

165.1 × 82.55

WR510

1.45 — 2.20

5.100 × 2.550

129.5 × 64.77

WR430

1.72 — 2.60

4.300 × 2.150

109.2 × 54.61

WR340

S Band (part)

2.20 — 3.30

3.400 × 1.700

86.36 × 43.18

WR284

S Band (part)

2.60 — 3.95

2.840 × 1.340 

72.14 × 34,94

WR229

C Band (part)

3.30 — 4.90

2.290 × 1.145

58.17 × 29.08

WR187

C Band (part)

3.95 — 5.85

1.872 × 0.872 

47.55 × 22.2

WR159

C Band (part)

4.90 — 7.05

1.590 × 0.795

40.38 × 20.2

WR137

C Band (part)

5.85 — 8.20

1.372 × 0.622 

34.90 × 15.8

WR112

7.05 — 10.00

1.122 × 0.497 

28.50 × 12.6

WR90

X Bband

8.20 — 12.40

0.900 × 0.400 

22.9 × 10.2

WR75

10.00 — 15.00

0.750 × 0.375

19.1 × 9.53

WR62

Ku Band

12.40 — 18.00

0.622 × 0.311

15.8 × 7.90

WR51

15.00 — 22.00

0.510 × 0.255

13.0 × 6.48

WR42

K Band

18.00 — 26.50

0.420 × 0.170 

10.7 × 4.32

WR34

22.00 — 33.00

0.340 × 0.170

8.64 × 4.32

WR28

Ka Band

26.50 — 40.00

0.280 × 0.140

7.11 × 3.56

WR22

Q Band

33.00 — 50.00

0.224 × 0.112

5.68 × 2.84

WR19

U Band

40.00 — 60.00

0.188 × 0.094

4.78 × 2.39

WR15

V Band

50.00 — 75.00

0.148 × 0.074

3.76 × 1.88

 

In the microwave region of the electromagnetic spectrum, a waveguide normally consists of a hollow metallic conductor. These waveguides can take the form of single conductors with or without a dielectric coating. Hollow waveguides must be one-half wavelength or more in diameter in order to support one or more transverse wave modes.

Waveguides may be filled with pressurized gas to inhibit arcing and prevent multifactor, allowing higher power transmission.

 

Waveguides are almost exclusively made of metal and mostly rigid structures. There are certain types of "corrugated" waveguides that have the ability to flex and bend but only used where essential since they degrade propagation properties. Due to propagation of energy in mostly air or space within the waveguide, it is one of the lowest loss transmission line types and highly preferred for high frequency applications where most other types of transmission structures introduce large losses. Due to the skin effect at high frequencies, electric current along the walls penetrates typically only a few micrometers into the metal of the inner surface. Since this is where most of the resistive loss occurs, it is important that the conductivity of interior surface be kept as high as possible. For this reason, most waveguide interior surfaces are plated with copper, silver, or gold.

 

Voltage standing wave ratio (VSWR) measurements may be taken to ensure that a waveguide is contiguous and has no leaks or sharp bends. If such bends or holes in the waveguide surface are present, this may diminish the performance of both transmitter and receiver equipment connected at either end.


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