WR340 Waveguide Step Twist
Dolph Microwave waveguide twists ensure precise electrical and mechanical interfaces, particularly when mechanical packaging necessitates a change in the plane of polarization. The compact three-step twist boasts a VSWR of less than 1. 05:1 over a 10% bandwidth, while a five-step twist can achieve lower VSWR and greater bandwidth. Options for twist angles include 30, 45, and 60 degrees, with continuous twists available in smaller sizes. For commonly used materials, paint, and flange configurations, refer to the Quote Request form. Contact Mega Sales for any custom configurations needed for your high-power microwave applications.
Model DH-26WSTA500PPA
Model DH-26WSTA120PPA
WR340 Waveguide Step Twist (DH-32WST90)
High-Performance S-Band 90° Polarization Rotation
Product Overview
The DH-32WST90 is a precision-engineered WR340 (R26) waveguide component optimized for the 2.20 GHz to 3.30 GHz frequency range. Utilizing a specialized multi-step internal transformer geometry, this 90° twist achieves field rotation in a compact 180mm axial length. This design is approximately 45% shorter than traditional helical twists, making it ideal for high-power radar feeds, medical LINAC systems, and SATCOM manifolds where space and signal integrity are critical.
Technical Specifications
| Feature | Specification |
|---|---|
| Waveguide Size | WR340 (IEC R26) |
| Frequency Range | 2.20 – 3.30 GHz |
| VSWR (Max) | ≤ 1.10:1 |
| Insertion Loss | ≤ 0.10 dB |
| Axial Length | 180 mm (7.08″) |
| Material / Finish | Alum/Copper with Chromate & Epoxy Paint |
Technical FAQ
Q: What is the advantage of a Step Twist over a Helical Twist?
A: Step twists use discrete internal sections to rotate the E-field, resulting in a much shorter physical length. This reduces the overall footprint of the system and provides higher mechanical rigidity, which is vital for mobile radar and airborne applications.
Q: Can these units handle high-power pressurized systems?
A: Yes. We offer pressurized versions with integrated O-ring grooves (e.g., CPR-style flanges) that can maintain up to 30 PSI. This is essential for preventing arcing in high-peak-power S-band applications.
Q: Are custom angles like 45° or 60° available?
A: Absolutely. While 90° is standard, our CNC machining capabilities allow us to manufacture custom twist angles and bespoke lengths to meet your exact phase and mechanical requirements.
Ready for a Technical Quote?
Standard lead time is 2-4 weeks. Please specify flange type (CPR, UDR, Cover/Grooved) and material preference for an expedited response.
