RF feeders can be categorized into various types based on their structure and application scenarios. Common types include balanced feeders (such as twisted pair cables), unbalanced feeders (such as coaxial cables), and waveguides. When selecting an RF feeder, consider the following factors:
Attenuation: Attenuation is a key RF feeder specification, indicating the amount of energy lost during signal transmission. Lower attenuation indicates better transmission quality.
Standing Wave Ratio: The standing wave ratio indicates the degree of overlap between the incident and reflected waves. A lower standing wave ratio indicates better transmission quality.
Insertion Loss: Insertion loss refers to the signal power loss caused by the RF feeder being connected to the circuit. Lower insertion loss indicates higher transmission efficiency.
Bandwidth: The bandwidth refers to the frequency range that the RF feeder can transmit. The wider the bandwidth, the greater its applicability.
Application Scenario: Different application scenarios have different requirements for RF feeders. For example, high-power, high-temperature, and corrosion-resistant RF feeders are required in military radar systems; while low-attenuation, lightweight, and highly anti-interference RF feeders are required in satellite communication systems.
