11305-10

RF Directional Couplers are high-performance components for providing low-loss transfer of power from one circuit to another while generating a directional signal. 11305-10 Directional Couplers are designed specifically for low-cost applications where the need for very low loss is not critical. The 11305-10 is a particularly suitable device for use in the RF environment because it offers very low insertion loss and wide band-width characteristics.

Application Field

11305-10 Directional Coupler can be used in a variety of different applications, including radio systems, cable television, cellular telecommunications and broadcast systems. The coupler is an ideal component for providing low-loss power transfer in radio systems while providing direction detection. It is also suitable for applications where low-frequency impedance matching is not required, such as in low-power microwave and millimeter wave systems.

Working Principle

11305-10 Directional Coupler works by combining two RF sources and then using an internal directional coupler to split the combined signal into two paths. One of the paths is fed through a tap, while the other is connected directly to the output port. The tap provides the user with the ability to measure the signal power in the second port and determine the power transfer efficiency of the coupler.The 11305-10 Directional Coupler is designed with a low insertion loss across the entire frequency range. This is achieved by using a proprietary microstrip filter design, which extends the upper frequency band limit to help reduce the insertion loss compared to other direction couplers. The coupler also has a controlled impedance, which is also beneficial when used in low-power systems, because it helps reduce signal reflections.

Advantages and Limitations

Advantages of the 11305-10 Directional Coupler include its low insertion loss, wide band-width, and high quality factor, which make it an ideal choice for applications that require low power transfer but still need reliable direction detection. It also has a relatively low cost, making it ideal for low-cost RF applications.The main limitation is its lack of high-frequency matching ability, so it may not be suitable for higher-power applications. Additionally, it requires a 50 Ohm load match at the input and output ports, so it will not function optimally in microwave and millimeter wave systems with high-impedance circuits.

Conclusion

The 11305-10 Directional Coupler is an ideal component for low-cost, high-performance RF applications. It offers excellent performance across a wide band-width range while providing low insertion loss and a controlled impedance. It is an excellent choice for applications where direction detection is necessary, but higher-power transfer is not critical.

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