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Mega Industries

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Home › Flexible Waveguide

Flexible Waveguide

Mega manufactures a full line of flexible waveguide products. Our line includes: straight sections, offsets, sweeps and flexible twists in an array of waveguide sizes. Mega also offers half height and custom sizes upon request.

Flexible Waveguide Technical DataDownload

Mega’s designs are field proven to meet the highest standards in the industry with material options including aluminum or copper alloys. Standard flex product finish is a chemical resistant epoxy paint system. Urethane and neoprene jacketing systems are also offered.

Learn more about Rigid vs. Flex

In the production process we use a process of brazing the seam off-center. This assures excellent electrical performance for high power applications. It also improves joint longevity and eliminates the potential for splitting or leaking. See the table below for power levels and typical bending radius.

  • Flexible Waveguide Offsets Flexible Waveguide Offsets
  • Flexible Waveguide Straights Flexible Waveguide Straights
  • Flexible Waveguide Sweeps Flexible Waveguide Sweeps
  • Flexible Waveguide Twists Flexible Waveguide Twists

Flexible Waveguide Technical Data

SizeFrequency (GHz)VSWR*Attenuation**Avg. Power (kW)Peak Power (MW)
WR908.20 – 12.401.100.0930.18
WR1027.00 – 11.001.100.0840.30
WR1127.05 – 10.001.090.0640.31
WR1375.85 – 8.201.090.0550.50
WR1594.90 – 7.051.080.0451.10
WR1873.95 – 5.851.080.0361.25
WR2293.30 – 4.901.070.0281.55
WR2842.60 – 3.951.090.02102.00
WR3402.20 – 3.301.080.01163.70
WR4301.70 – 2.601.070.01204.70
WR5101.45 – 2.201.070.01204.70
WR6501.12 – 1.701.060.0115011
WR7700.96 – 1.451.050.0121015
WR9750.75 – 1.121.050.0135025
WR11500.64 – 0.961.050.0149035
WR15000.49 – 0.751.050.0184060
WR18000.41 – 0.621.050.01120086
WR21000.35 – 0.531.050.011300117
WR23000.32 – 0.491.050.011540141

*VSWR is per 2 foot section

**Attenuation is in dB per foot

Rectangular Flexible Waveguide
Rectangular Flexible Waveguide

Bending Radius to Centerline

SizeE-Plane w/ JacketH-Plane w/ JacketE-Plane No JacketH-Plane No Jacket
WR901.75″2.50″1.25″1.50″
WR1022.00″2.88″1.30″1.94″
WR1122.25″3.25″1.40″1.82″
WR1372.38″3.38″1.50″2.07″
WR1594.00″6.00″1.60″2.25″
WR1874.38″6.50″1.94″3.00″
WR2296.50″8.00″2.13″3.25″
WR2847.00″9.50″2.94″5.50″
WR340 N/A N/A4.25″6.00″
WR430 N/A N/A6.00″8.00″
WR510 N/A N/A6.00″12.00″
WR650 N/A N/A6.00″12.00″
WR770 N/A N/A6.00″12.00″
WR975 N/A N/A9.00″18.00″
WR1150 N/A N/A12.00″24.00″
WR1500 N/A N/A12.00″30.00″
WR1800 N/A N/A18.00″36.00″
WR2100 N/A N/A24.00″42.00″
WR2300 N/A N/A24.00″48.00″

Products

Offsets

Flexible Waveguide Straight Section
WR430 Flexible Straight Section

Mega’s flex offsets have excellent electrical performance. Offsets give you extra flex that your high power application may demand.

Straights

Our flexible straight sections are manufactured from aluminum, copper, brass and phosphor bronze. Also, various flange designs are supplied to meet EIA and Military specs.

Sweeps

Sweeps are manufactured from various materials and various flange layouts. Mega provides full design services for factory formed sweeps that assure accuracy and electrical performance.

Twists

Flex Twists are manufactured from aluminum, copper brass and phosphor bronze with various flange styles. We provide full design services for factory formed bends and twists to assure accuracy and electrical performance. A ten percent (10%) operating frequency bandwidth is requested to provide optimum VSWR results.

Material Selection

In the past, many flexible waveguide parts were constructed using Beryllium Copper Coil (Alloy 172). This was initially convoluted from a flat strip. It was later bent to form a rectangular shape. Subsequently, this formed shape was then brazed to provide a flexible rectangular waveguide tube.

As power levels increased, the braze seam on the broad wall was determined to be problematic due to arcing events. This resulted in the development of a seamless Phosphor Bronze design as Beryllium Copper concerns increased. The new design exhibits the same qualities as the original Beryllium Copper Design. Numerous Jackets are allowed by the latest edition of MIL-DTL-287 and Neoprene is now replaced by Silicone.

Flexible Waveguide Solutions
Global Leaders in RF Solutions since 1989
Compressed Convolution

Our convolution process allows for increased movement in both the E and H plane. In addition, it requires less force for compression and expansion. As a result of the unique compression technique, this waveguide will offer greater expansion ability.

This enhanced capacity yields a softer section that can prove extremely valuable. Especially in areas that would normally make for a difficult connection.

Compressed Convolution Typical Data
SizeFrequency (GHz)VSWR*Attenuation**Avg. Power (kW)Peak Power (MW)
WR6501.12 to 1.701.060.0115011
WR7700.96 to 1.451.050.0121015
WR9750.75 to 1.121.050.0135025
WR11500.64 to 0.961.050.0149035
WR15000.49 to 0.751.050.0184060
WR18000.41 to 0.621.050.01120086
WR21000.35 to 0.531.050.011300117
WR23000.32 to 0.491.050.011540141

*VSWR is per 2 foot section
**Attenuation is in dB per foot

View Flexible Waveguide Data Sheets

WR90WR102WR112
WR137WR159WR187
WR284WR340WR430
WR510WR650WR770
WR975WR1150WR1500
WR1800WR2100WR2300

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