CP0402A0836ENTR

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RF Directional Couplers are used in many applications, of which the CP0402A0836ENTR is one. In this article, I will discuss the application field and working principle of the CP0402A0836ENTR and explore how it fits into the wider RF Directional Coupler category.

An RF Directional Coupler is a type of passive electronic device that couples a fixed amount of signal power from a radio frequency (RF) source and directs it to another port. Couplers are used to sample signal power, control signal levels, sample and steer signal locations, and measure impedance. Depending on its design specification, the directional coupler can be either a 3-port or a 4-port device.

The CP0402A0836ENTR RF Directional Coupler belongs to the 3-port variety. It is a low-cost, high-performance coupler industry and is suitable for many applications. Its main function is to sample the RF power without disturbing the signal path, and then convert it to provide a representation of the coupled signal at the third port. It is also used to microwave communications, telemetry and distributed antenna systems.

In terms of design, the CP0402A0836ENTR is a 3-port device which features a very high directivity that allows for desired signal power levels on the coupled port without affecting the actual signal path. It also features a frequency range from 836 to 960MHz, insertion loss of 0.5dB, power handling up to 10W, and isolation between 10 to 20dB.

The working principle of the CP0402A0836ENTR is straight-forward. It samples a predetermined amount of signal power from the source port and sends it to the coupled port. This process is performed through electromagnetic coupling, in which a special combination of coils and capacitors is used to transfer a portion of the energy from one port to the other without actually connecting the two. The amount of energy transferred is determined by the value of the coupling component.

In summary, CP0402A0836ENTR is a 3-port directional coupler that belongs to the family of RF Directional Couplers. It is an industry leading device used in many applications such as microwave communications, telemetry and distributed antenna systems. Its working principle is based on electromagnetic coupling using a special combination of coils and capacitors to transfer a portion of the energy from the source port to the coupled port.

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