On what principle does Broadband Coupler achieve broadband signal coupling?
Publish Time: 2024-11-05
The principle of Broadband Coupler to achieve broadband signal coupling is mainly based on its special design and structure.
Coupling structure:
Broadband Coupler usually adopts special structures to achieve signal coupling, such as mass coupling lines, transformers or microstrip lines. These structures have specific physical designs, which enable the input signal to be effectively transmitted and distributed inside the coupler.
Signal distribution:
When the input signal enters the Broadband Coupler, the coupling structure distributes the signal to multiple output ports. These output ports can be two, three or more, depending on the design and application requirements of the coupler.
Balance:
The design goal of Broadband Coupler is to make the signal amplitude obtained from different output ports relatively uniform. To achieve this, factors such as signal transmission loss, phase difference and frequency response need to be taken into account during the design process to ensure the balance of the signal between the various output ports.
Bandwidth:
The design of Broadband Coupler enables it to maintain relatively uniform and balanced signal distribution performance over a large frequency range. This means that it can effectively transmit signals within a wide bandwidth without significant signal attenuation or distortion.
Characteristics of directional coupler:
Directional coupler is a special Broadband Coupler, which has directivity and can design the ratio and phase relationship of power distribution according to needs. This coupler couples the power signal input from the main line input end to the secondary line in a certain ratio through a certain coupling mechanism (such as pinhole coupling, parallel coupling, branch coupling, etc.), realizing directional transmission and distribution of signals.
In summary, Broadband Coupler realizes uniform distribution and balanced transmission of broadband signals through special coupling structure and design principle. This device is widely used in many fields such as antenna systems, power distribution, measuring instruments and communication systems.
