In the wireless intercom systems, there are a variety of antenna output signal need to be calculated according to construction structures, on that condition, the two way radio power splitter play its role.
Power splitter is a kind of devices that divide one way input signal energy into two or a plurality of equal or not equal energy, it can also combine the multipath signal energy into one to output, at this point, power splitter also known as a combiner. The output ports of power splitter should keep a certain degree of isolation. According to the output, Power splitter is usually divided into two parts (one input and two outputs), or it is divided into three parts (one input and three outputs), etc. Main technical parameters of the power splitter are power loss (including insertion loss, distribution loss and reflection loss), the voltage standing wave ratio in different ports(VSWR), isolation between power allocation ports and amplitude balance, phase equilibrium, power capacity, and the band width.
: Power splitter is to proportionally allocate the signal of two way radio system.
Specifications: two power splitter, three power splitter, four power splitter.
The power splitter is a device which is divided one way radio frequency input signal into two equal parts, the output ports of the power splitter should ensure a certain of isolation.
The technical index of the power splitter include frequency range, bearing power, the allocation loss of the main path to the branch, the insertion loss between input and output, the isolation between the branch ports, the voltage standing wave ratio of each port and so on.
Function of power splitter:
A. Frequency range: This is the premise of all kinds of RF / microwave circuit, the design structure of power splitter is closely related to the working frequency.
B. Bearing power: the maximum power, high power signal splitter and circuit components can withstand, is the core indicators, which determines what kind of transmission line to achieve the design task.
C. Coupling loss: the distribution loss of the main road to the branch is essentially related to the specification of the power splitter.
D. Insertion loss: the insertion loss between the input and output is due to the medium or conductor of the transmission line is not ideal and other factors.
E. Isolation degree: the isolation degree between the branch ports is another important index of the coupling splitter.
F. Standing wave ratio: The voltage standing wave ratio in each port is the smaller, the better.