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Circulator, isolator
Review of the product Circulator and isolator – These are specialized devices for signal direction control and protection in high-frequency (HF) radio frequency paths. They have similar working principles and complementary functions. Circulator provides directional ring circulation of the signal.
Description
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Review of the product
Circulator and isolator are specialized devices for signal direction control and protection in high-frequency (HF) radio frequency paths. They have similar working principles and complementary functions. Circulator provides directional annular circulation of the signal, and the isolator - one-way passage of the signal with blocking the reverse direction. They effectively suppress the reflected signals in the path and protect key components such as the source of the signal in the input cascades, the power amplifier module, the receiving nodes, etc., increasing the stability, reliability and service life of the system. These are indispensable companion devices for high-frequency power paths and transceiver paths with a common antenna.
Key functions
circulator
• Directed sequential signal transmission between three or more ports without crosstalk.
• Sharing one antenna with receiving and transmitting paths to simplify the structure of the equipment.
• Directed signal separation and routing for power distribution scenarios.
isolator
Control of one-way signal transmission and blocking of reverse reflected signals.
• Absorption of the reflected wave to prevent overload and damage to the input cascades.
• Optimization of port impedance, reduction of signal distortion and increase of its purity.
Scope of application
Radio frequency power paths, antenna receiver systems with a common antenna, signal source output protection, input communication cascades, commercial radio frequency equipment, internal paths of precision measuring instruments for coordination and isolation, etc.
Typical technical parameters
| Name of the parameter | Operating frequency range | Loss incurred | The reverse. | harbour security | Nominal power | Construction | Operating temperature | Type of connector |
| Model indicators | 10 MHz ~ 100 GHz, to order | ≤1 dB | ≥22 dB/50 ohms | ≤1,3 | 5 watts ~ 150 watts, by project | Waveguide, coaxial, microstrip; according to the project | -40 °C ~ +85 °C, by project | SMA, BNC, N-type, 2.92 mm, 1.85 mm, pin connector, microstrip |
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