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Waveguide Twist

A waveguide twist is a component used in microwave systems to rotate the polarization of the signal without altering its direction. It enables the waveguide to be adjusted to any angle, ensuring compatibility with the system’s orientation while maintaining signal integrity and performance.

Dolph Microwave offers a comprehensive line of waveguide twists, engineered to seamlessly integrate into microwave systems requiring polarization rotation. These twists operate across a wide frequency range from 18 to 110 GHz, accommodating various waveguide sizes from WR10 through WR430. Designed to meet the highest standards of electrical performance, Dolph Microwave’s waveguide twists are essential for systems that demand precise polarization alignment.

Key Features

  • Wide Frequency Range: Operates from 18 to 110 GHz, covering seven frequency bands to suit diverse application needs.
  • Customizable Twist Angles: Offers both 45° and 90° twist angles, with the capability to provide custom angles as per customer specifications.
  • Superior Electrical Performance: Features gold-plated brass construction, achieving a VSWR as low as 1.02:1 and insertion loss as low as 0.2 dB.
  • Versatile Configuration Options: Available in both right-hand and left-hand twist configurations for the 45° versions, enhancing system compatibility.
  • High-Quality Materials: Constructed from Oxygen Free Hard Copper or Copper Alloy, ensuring durability and optimal performance.
  • Precision Engineering: Utilizes precision machining for accurate and lasting performance, with a focus on maintaining signal integrity.
  • Protective Finish: Includes corrosion protection plus a black/grey top coat to withstand harsh environments.

Applications

Dolph Microwave’s waveguide twists are indispensable in several key applications:

  • Radar Systems: Enables the precise alignment of polarization for radar signal processing and transmission.
  • Satellite Communications: Facilitates the adjustment of antenna polarization to optimize signal reception and transmission.
  • Telecommunications: Supports the configuration of communication infrastructure to meet specific polarization requirements.
  • Research and Development: Provides a versatile tool for experimental setups in microwave labs, allowing for controlled polarization studies.
  • Aerospace: Ensures the compatibility of onboard communication systems with ground-based infrastructure through adjustable polarization.

Product Specifications

Below is a specification table for Dolph Microwave’s waveguide twists:

ParameterSpecification
Frequency Range18 to 110 GHz
Waveguide SizesWR-430 to WR-10
VSWRAs low as 1.02:1
Insertion LossAs low as 0.2 dB
Twist Range0°-90°, with standard twists of 30°, 45°, 60°, 90°
MaterialOxygen Free Hard Copper, Copper Alloy
Flange TypesUG and CPR, with other options available
FinishCorrosion-resistant with black/grey top coat

Dolph Microwave’s waveguide twists are tailored to meet the evolving needs of modern microwave systems, offering unparalleled precision, reliability, and flexibility. Whether for radar, satellite, telecommunications, or research applications, these components ensure that polarization requirements are met with the highest standards of performance. For further information or to discuss customized solutions, Dolph invites potential clients to connect with their expert sales engineers, who are ready to assist with any waveguide twist needs.

MODEL FREQ. RANGE (GHz) WG Size VSWR IL (dB) FlANGES TYPE MIN. LENGTH (mm) MATERIAL FINISH ROHS/REACH DATASHEET
COVER GROOVED
DH-22WTA… 1.72-2.61 WR430 1.1:1 0.15 UDR22 PDR22 800 Al/Cu Chromate/Painted Comply PDF STEP
DH-26WTA… 2.17-3.3 WR340 1.1:1 0.15 UDR26 PDR26 400 Al/Cu Chromate/Painted Comply PDF STEP
DH-32WTA… 2.6-3.95 WR284 1.1:1 0.15 UDR32 PDR32 300 Al/Cu Chromate/Painted Comply PDF STEP
DH-40WTA… 3.22-4.9 WR229 1.1:1 0.15 UDR40 PDR40 250 Al/Cu Chromate/Painted Comply PDF STEP
DH-48WTA… 3.94-5.99 WR187 1.1:1 0.15 UDR48 PDR348 200 Al/Cu Chromate/Painted Comply PDF STEP
DH-58WTA… 4.64-7.05 WR159 1.1:1 0.15 UDR58 PDR58 170 Al/Cu Chromate/Painted Comply PDF STEP
DH-70WTA… 5.38-8.17 WR137 1.1:1 0.15 UDR70 PDR70 150 Al/Cu Chromate/Painted Comply PDF STEP
DH-84WTA… 6.57-9.99 WR112 1.1:1 0.15 UDR84/UBR84 PDR84/PBR84 120 Al/Cu Chromate/Painted Comply PDF STEP
DH-100WTA… 8.2-12.5 WR90 1.1:1 0.15 UDR100/UBR100 PDR100/PBR100 60 Al/Cu Chromate/Painted Comply PDF STEP
DH-120WTA… 9.84-15 WR75 1.1:1 0.15 UBR120 PBR120 60 Al/Cu Chromate/Painted Comply PDF STEP
DH-140WTA… 11.9-18 WR62 1.1:1 0.15 UBR140 PBR140 50 Al/Cu Chromate/Painted Comply PDF STEP
DH-180WTA… 14.5-22 WR51 1.1:1 0.15 UBR180 PBR180 50 Al/Cu Chromate/Painted Comply PDF STEP
DH-220WTA… 17.6-26.7 WR42 1.1:1 0.15 UBR220 PBR220 50 Al/Cu Chromate/Painted Comply PDF STEP
DH-260WTA… 21.7-33 WR34 1.15:1 0.2 UBR260 PBR260 50 Al/Cu Chromate/Painted Comply PDF STEP
DH-320WTA… 26.3-40 WR28 1.15:1 0.2 UBR320 PBR320 50 Al/Cu Chromate/Painted Comply PDF STEP
DH-400WTA… 32.9-50.1 WR22 1.15:1 0.2 FUGP400/UG-383U/M 50 Al/Cu Chromate/Painted Comply PDF STEP
DH-500WTA… 39.2-59.6 WR19 1.15:1 0.25 FUGP500/UG-383U/M 50 Al/Cu Chromate/Painted Comply PDF STEP
DH-620WTA… 49.8-75.8 WR15 1.15:1 0.25 FUGP620/UG-385U/M 50 Al/Cu Chromate/Painted Comply PDF STEP
DH-740WTA… 60.5-91.9 WR12 1.15:1 0.3 FUGP740/UG-387U/M 50 Al/Cu Chromate/Painted Comply PDF STEP
DH-900WTA… 73.8-112 WR10 1.15:1 0.3 FUGP900/UG-387U/M 50 Al/Cu Chromate/Painted Comply PDF STEP
Part Number Guide: DH-100WTA60PMA45
"840DR"—Waveguide Size | WRD840
"WTA"—Waveguide Type | Rectangular Right-Handed Twisted Waveguide
"WLTA"—Waveguide Type | Rectangular Left-Handed Twisted Waveguide
"60"— Length | 60 mm
"P"— Flange Type | Rectangular Flat
"M"— Flange Type | Rectangular Grooved
"A/C"— Material | Aluminium, Cu
"45"— Twisting Angle | 45°(90° as default)
Note:
Twist angle other than 90˚ available on request.
Twist direction option of Dolph Microwave unless otherwise specified.
All Dolph-MW models include an surtec/corrosion protection treatment and are painted flat black. Flanges are unplated, polished and surtec. Other finishes and paint colors are available upon request.
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