Product Description
Mi-Wave’s Linear to Circular Polarizers for Satellite Communications are precision RF components designed to convert linearly polarized signals into circularly polarized signals for use in modern SatCom systems. These polarizers support microwave and millimeter-wave frequency bands, enabling reliable polarization control in satellite uplink, downlink, feeder link, and ground station applications.
Circular polarization is widely used in satellite communications to reduce polarization mismatch, mitigate antenna orientation errors, and improve link robustness in dynamic or long-range propagation environments. Mi-Wave linear to circular polarizers are available in Right-Hand Circular Polarization (RHCP) or Left-Hand Circular Polarization (LHCP) configurations and are engineered for stable performance across wide operating bandwidths.
Note: The linear to circular polarizers shown on this website represent only a portion of Mi-Wave’s manufacturing capabilities. We design and build additional polarizer configurations beyond those listed. Consult with Mi-Wave to discuss your specific frequency band, bandwidth, interface, or polarization requirements.
| Model | Circular Antenna Port Internal Diameter (inches) (.XXX in Model No.) | Frequency (GHz) | Flange | Insertion Loss (dB) typical | Bandwidth (GHz) | Axial Ratio (dB) | LINK |
|---|---|---|---|---|---|---|---|
| 282X-XX/.XXX/90 | Option 1 1.094" ID Circular Waveguide Option 2 .938" ID Circular Waveguide Option 3 .797" ID Circular Waveguide | 8-9.97 8.5-11.6 9.7-12.4 | UG-90/U | 1 | 2 | 1 | |
| 282Ku-XX/.XXX/90 | Option 1 .660" ID Circular Waveguide Option 2 .550" ID Circular Waveguide | 12.4-14.6 14.6-17.5 | UG-419/U | 1 | 2.2 | 1 | |
| 282K-XX/.XXX/595 | Option 1 .470" ID Circular Waveguide Option 2 .396" ID Circular Waveguide Option 3 .328" ID Circular Waveguide | 17.5- 20.5 20.5-24.5 24.5-26.5 | UG-595/U | 1 | 3 | 1 | |
| 282A-XX/.XXX/599 | Option 1 .328" ID Circular Waveguide Option 2 .281" ID Circular Waveguide Option 3 .250" ID Circular Waveguide Option 4 .219" ID Circular Waveguide | 26.5-28.5 28.5-33 33-38.5 38.5-40 | UG-599/U | 1 | 5 | 1 | |
| 282B-XX/.XXX/383 | Option 1 .250" ID Circular Waveguide Option 2 .219" ID Circular Waveguide Option 3 .188" ID Circular Waveguide | 33.0-38.5 38.5-43.0 43.0-50.0 | UG-383/U | 1 | 5 | 1 | |
| 282U-XX/.XXX/383 | Option 1 .219" ID Circular Waveguide Option 2 .188" ID Circular Waveguide Option 3 .165" ID Circular Waveguide Option 4 .141" ID Circular Waveguide | 40-43 43-50 50-58 58-60 | UG-383/U-M | 1 | 6 | 1 | |
| 282V-XX/.XXX/385 | Option 1 .165" ID Circular Waveguide Option 2 .141" ID Circular Waveguide Option 3 .125" ID Circular Waveguide | 50-58 58-68 68-75 | UG-385/U | 1 | 7 | 1 | |
| 282E-XX/.XXX/387 | Option 1 .141" ID Circular Waveguide Option 2 .125" ID Circular Waveguide Option 3 .110" ID Circular Waveguide Option 4 .094" ID Circular Waveguide | 60-68 68-77 77-87 87-90 | UG-387/U | 1 | 7 | 1 | |
| 282W-XX/.XXX/387 | Option 1 .125" ID Circular Waveguide Option 2 .110" ID Circular Waveguide Option 3 .094" ID Circular Waveguide Option 4 .082" ID Circular Waveguide | 75-77 77-87 87-100 100-110 | UG-387/U-M | 1 | 8 | 1 | |
| 282F-XX/.XXX/38 | Option 1 .094" ID Circular Waveguide Option 2 .082" ID Circular Waveguide Option 3 .075" ID Circular Waveguide Option 4 .067" ID Circular Waveguide | 90-100 100-112 112-125 125-140 | UG-387/U-M | 1 | 10 | 1 | |
| 282D-XX/.XXX/387 | Option 1 .082" ID Circular Waveguide Option 2 .075" ID Circular Waveguide Option 3 .067" ID Circular Waveguide Option 4 .059" ID Circular Waveguide | 110-112 112-125 125-140 140-170 | UG-387/U-M | 1.5 | 10 | 1 | |
| 282G-XX/.XXX/387 | Option 1 .067" ID Circular Waveguide Option 2 .059" ID Circular Waveguide | 125-140 140-220 | UG-387/U-M | 1.7 | 10 | 1 |
Linear to Circular Polarizer
Mi-Wave’s 282 Series linear to circular polarizers convert input linear signals to circularly polarized output signals. The circular polarization sense (RHCP or LHCP) and center frequency should be specified at the time of order. These linear to circular polarized antennas will yield a maximum VSWR of 1.2 and an axial ratio of 1.0 dB maximum over the indicated bandwidth.
Higher frequencies are available upon request.
Features
• VSWR < 1.2
• Axial Ratio < 1.0 dB Over the indicated bandwidth.
• Converts Linear Input Signals to Circular Out
• Specify Sense of Circular RF Polarization (RHCP or LHCP)
• Available from 12.4 to 220 GHz with 3% or Greater Bandwidth.
Applications
• SatComm
• Test & Measurement Labs
• RF Communication
Why Choose Mi-Wave for SatCom Linear to Circular Polarizers
Mi-Wave is a trusted supplier of microwave and millimeter-wave RF hardware supporting satellite communication systems worldwide. Our linear to circular polarizers are designed and manufactured to meet the stringent performance requirements of ground stations, gateway terminals, feeder links, and payload test environments.
SatCom-Driven Engineering
Each polarizer is engineered for tight axial ratio control, low reflection, and stable phase balance, ensuring reliable polarization conversion across satellite frequency bands.
Broad SatCom Frequency Expertise
Mi-Wave supports SatCom polarization solutions across Ka-Band, Q-Band, and V-Band, as well as extended millimeter-wave frequencies used in next-generation satellite architectures.
Custom SatCom Polarizer Solutions
Mi-Wave offers custom linear to circular polarizers tailored to specific SatCom requirements, including:
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Dedicated uplink and downlink frequency bands
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RHCP or LHCP polarization sense
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Waveguide size and interface selection
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Bandwidth and axial ratio optimization
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Mechanical and mounting constraints for gateway environments
Our sales engineering team works directly with customers to ensure seamless system integration.
What This Product Does for SatCom Systems
Linear to circular polarizers convert an incoming linearly polarized RF signal into a circularly polarized signal by introducing a controlled phase shift between orthogonal field components. This produces a rotating electric field that maintains its polarization orientation relative to the direction of propagation.
In SatCom systems, this conversion:
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Enables compatibility with circularly polarized satellite antennas
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Reduces polarization mismatch losses between ground and space segments
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Improves link reliability in long-distance and high-frequency propagation
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Supports simultaneous RHCP and LHCP channel planning
These benefits are especially important at Ka-, Q-, and V-Band frequencies, where polarization accuracy directly impacts link margin and system performance.
Typical SatCom Applications
Linear to circular polarizers are commonly used in:
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Satellite uplink and downlink chains
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Ground stations and gateway terminals
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Ka-Band, Q-Band, and V-Band SatCom systems
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Feeder links and high-throughput satellite networks
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Payload testing and RF subsystem validation
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Antenna polarization alignment and verification
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System integration and commissioning environments
Key Features for SatCom Applications
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Converts linear polarization to circular polarization
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Available in RHCP or LHCP configurations
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Low axial ratio across operating bandwidth
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Low VSWR for minimal return loss
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Optimized for microwave and millimeter-wave SatCom frequencies
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Precision mechanical construction for repeatable performance
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Compatible with standard circular waveguide interfaces
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Custom SatCom configurations available
Supported SatCom Frequency Bands
Mi-Wave linear to circular polarizers support common satellite communication bands, including:
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Ka-Band (26.5–40 GHz)
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Q-Band (33–50 GHz)
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V-Band (50–75 GHz)
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Extended millimeter-wave bands for advanced SatCom development
Specific frequency coverage depends on waveguide size and system requirements.
