rf directional coupler is the important part in rf passive component filed.It's a electronic item that couple a defined amount of the electromagnetic power in a transmission line to a port enabling the signal to be used in another circuit. One key feature of directional couplers is that they only couple power flowing in one direction. In this way, power entering the output port is coupled to the i...

The 3dB Hybrid Coupler is also called the same frequency combiner. It can continuously sample the transmission power along a certain direction of the transmission line, and can divide an input signal into two signals of equal amplitude and 90° phase difference. It is mainly used for multi-signal combining to improve the utilization of output signals. It is widely used to combine base station signa...

As known that inbuilding solution wireless coverage will use omni ceiling antenna, directional coupler, 3dB hybrid coupler, power divider splitter and panel directional antenna.  and where is this original signal from?  There the base station comes, and one kind antenna is used very frequencly at base station. In the engineering design of mobile communication network, the base station an...

Recently we have a lot of goods to ship ,therefore packing dapartment are very busy.Everyone make the best use of time to stick labels on the products, put in plastic bag and lastly put it in box.In th process ,every step meet the packing standards. Or pack  according to the customers'requirements.Because these goods will be shipped to Australia,America...,it is quite important to guaran...

Power dividers (also power splitters and, when used in reverse, power combiners) and directional couplers are passive devices used mostly in the field of radio technology. They couple a defined amount of the electromagnetic power in a transmission line to a port enabling the signal to be used in another circuit. An essential feature of di...

Do you have a question about What the difference between coupler and hybrid coupler is ?Actually,My answer is Yes. An essential feature of directional couplers is that they only couple power flowing in one direction. Power entering the output port is coupled to the isolated port but not to the coupled port. A directional coupler designed to split power equally between two ports is called a hy...

In the world of RF design, dB (decibel) is more than just a unit—it’s the fundamental language that engineers use to describe gain, loss, power level, and system performance. Without understanding dB, it’s nearly impossible to evaluate or optimize RF components such as antennas, filters, couplers, and power splitters. Understanding the Role of dB The decibel is a logarithmic unit that expresses th...

One of the questions we hear most often from engineers is: “Should I use a 6dB, 10dB, 15dB, or 20dB coupler — and what’s the real difference in coverage?” On paper, these numbers look like simple coupling values. But from more than two decades of manufacturing RF passive components, we know something very clearly: Choosing the wrong coupling value can break your coverage balance, distort the ...