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Dual Junction Coaxial Isolators
YUSNTECH Dual Junction Coaxial Isolators deliver enhanced isolation and superior reflected power handling for demanding RF and microwave systems. Designed for high-power applications from VHF/UHF to microwave bands, these isolators provide low insertion loss, high stability, and robust protection for RF power amplifiers. Widely used in radar, electronic warfare, satellite communications, and telecom infrastructure, with customizable frequency, power, and connector options.
Features
- High isolation
- High reverse power handling
- Low insertion loss
- Excellent VSWR
- Compact, customizable design
Applications
- Radar and EW systems
- Satellite & aerospace communications
- Defense and high-power transmitters
- RF test equipment
- Telecom infrastructure
Model↑↓ | Freq. (GHz) | IL. (dB Max) | Isolation (dB Min) | VSWR | CW Power (w) | Reverse Power (w) | Conn. | Inquiry |
|---|---|---|---|---|---|---|---|---|
| YS2CI100-80M-R23-N | 0.08-0.23 | 2.2 | 46 | 1.30 | 50/100 | 20/100 | SMA / N | Inquiry |
| YS2CI150-80M-R23-S | 0.08-0.23 | 2.2 | 46 | 1.30 | 150 | 20/100 | SMA / N | Inquiry |
| YS2CI100-R3-1R2-N | 0.3-1.2 | 1.6 | 50 | 1.60 | 100 | 20/100 | SMA / N | Inquiry |
| YS2CI100-R3-1R45-N | 0.3-1.45 | 1.6 | 50 | 1.35 | 100 | 20/100 | SMA / N | Inquiry |
| YS2CI100-R3-1R85-N | 0.3-1.85 | 1.6 | 50 | 1.35 | 100 | 20/100 | SMA / N | Inquiry |
| YS2CI300-R7-4R2-S | 0.7-4.2 | 1.2 | 50 | 1.30 | 100200300 | 20 | SMA / N | Inquiry |
| YS2CI100-R7-5-N | 0.7-5 | 1.2 | 46 | 1.50 | 100 | 20/100 | SMA / N | Inquiry |
| YS2CI100-1-2-S | 1-2 | 1.3 | 34 | 1.40 | 100 | 100 | SMA / N | Inquiry |
| YS2CI100-2-4R2-S | 2-4.2 | 1.0 | 40 | 1.30 | 100 | 20 | SMA / N | Inquiry |
| YS2CI100-3-6R5-N | 3-6.5 | 1.0 | 40 | 1.30 | 100 | 20 | SMA / N | Inquiry |
| YS2CI50-4-8-S | 4-8 | 1.2 | 40 | 1.30 | 50 | 10 | SMA | Inquiry |
| YS2CI30-8-13R3-S | 8-13.3 | 1.2 | 50 | 1.40 | 30 | 10 | SMA | Inquiry |
FAQ
A dual junction coaxial isolator is a high-performance RF isolator that uses two magnetic junction stages to achieve higher isolation and improved reflected power handling compared to single junction designs. It is widely used in high-power microwave systems where enhanced protection of RF amplifiers and transmitters is required.
Dual junction isolators provide higher isolation, better impedance stability, and increased reverse power handling capability. They offer improved protection against reflected power, making them ideal for high-power radar, satellite communication, electronic warfare, and RF transmission systems.
YUSNTECH dual junction coaxial isolators cover a wide frequency range from VHF and UHF bands to microwave frequencies. Standard and custom frequency options are available to support various RF system requirements, including broadband and narrowband applications.
They are commonly used in radar systems, electronic warfare (EW) platforms, satellite communication systems, RF power amplifier chains, broadcast transmitters, and high-power microwave test equipment where reliable isolation and reflected power protection are critical.
Single junction isolators provide standard isolation and power handling for general RF applications, while dual junction isolators offer significantly higher isolation and improved reverse power capability, making them suitable for more demanding high-power and high-reliability systems.
Yes. Dual junction coaxial isolators are specifically designed to handle higher reflected power levels, protecting sensitive RF components from damage caused by impedance mismatch, antenna reflection, or system faults.
Common connector options include SMA, N-Type, and 2.92 mm connectors. Custom connector types and mechanical configurations are available depending on system integration requirements.
Yes. YUSNTECH supports full customization including frequency range, power rating, isolation level, connector type, mechanical dimensions, and environmental specifications. Custom solutions are available for radar, aerospace, defense, and telecom applications.
Power handling varies by model and frequency band, ranging from medium-power RF applications to high-power microwave systems. Both forward CW power and reverse (reflected) power ratings are specified for system-level protection design.
They are preferred because they provide higher isolation and better protection against reflected energy, which improves system reliability and reduces the risk of damage to expensive RF amplifiers and transmitters in high-power operating environments.