EHF-FD1541

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

RF Directional Coupler is a very important device in the field of radio frequency transmission and reception. It is mainly used to monitor the amount of transmitted power, measure the reflected power, isolate mutual interference between transmitters and receivers, route signals into two paths, and provide protection for the transmission system. One type of directional coupler is the EHF-FD1541 direction coupler, which is widely used in several application fields. This paper will discuss the application field and working principle of the EHF-FD1541.

The application field of EHF-FD1541 includes radio base stations, wireless communication systems, RF test and measurement systems, telemetry systems, etc. It is mainly used for radio frequency signal coupling, power division, signal isolation between signal sources and antennas, signal routing and measuring input and output power. It serves as the main measuring device of the transmission power.

The working principle of EHF-FD1541 is based on the principle of electromagnetic induction. When a radio frequency signal passes through the coupler, the external magnetic field of the signal will induce a current in the coupler. The relationship between the induced current and the incident signal can be expressed as the ratio of the voltage output from the output port to the voltage applied to the RF input port. Generally speaking, the voltage ratio is about 10:1. The main components of the EHF-FD1541 include a main branch, two secondary branches and a capacitive branch, each of which has a different role to play in the working principle of the direction coupler.

The main branch of the directional coupler is mainly used to transfer the input signal from the input port to the output port. The two smaller secondary branches handle the signal coupling, isolation and division. These secondary branches are connected to the two sides of the capacitive branch, which is used to provide the capacitive load which is essential for the proper functioning of the coupler. The different values of the resistor in each secondary branch determine the value of the power and voltage coupling.

The EHF-FD1541 directional coupler has a very broad application field and does a great job aiding in RF signal monitoring and routing. Its working principle is based on electromagnetic induction, which can be adjusted to provide different power coupling values. Due to the excellent performance of the EHF-FD1541, it is very popular in radio base station, wireless communication systems, RF test and telemetry systems.

The specific data is subject to PDF, and the above content is for reference