Power splitter with high isolation

Abstract

The invention relates to a power splitter with high isolation. The power splitter comprises a substrate, a first shunt arm, a second shunt arm, a signal input unit, a connecting unit, a ground plane and a slit slot, wherein the signal input unit is used for receiving an input signal and distributing the input signal to the first shunt arm and the second shunt arm; the ground plane is used for providing grounding; the first shunt arm, the second shunt arm, the signal input unit and the connecting unit are distributed on the first surface of the substrate, and form a first area in a surrounding mode; the ground plane is distributed on a second surface of the substrate; the slit slot is formed in the ground plane, and at least part of the slit slot is formed in a second area corresponding to the first area. The power splitter of the invention has an excellent high isolation characteristic without using additional resistor components, greatly saves the manufacturing cost, can be suitable for high frequency bands effectively, and can meet the requirements for power distribution.

Description

technical field [0001] The invention relates to a power divider with high isolation, in particular to a power divider with high isolation without using resistors. Background technique [0002] Power dividers are often used in microwave circuits to distribute input signal power to various components. There are two traditional commonly used one-to-two power dividers: Wilkinson power divider and T-junction power divider. The difference between these two power dividers is that the Wilkinson power divider usually requires an additional resistor to improve the isolation, while the T-type power divider does not require an additional resistor, but its isolation is relatively high. Difference. [0003] Please refer to figure 1 , figure 1 It is a schematic diagram of a known Wilkinson power divider 10 . The Wilkinson power divider 10 includes an input port 102 , split ports 104 , 106 and a resistor 108 . In general, the resistance value of the resistor 108 is usually twice that ...

AI Technical Summary

Problems solved by technology

[0008] The power divider of the present invention does not need to use additional resistance components, but can maintain excellent high isolation characteristics, which can greatly save manufacturing costs. More importantly, the power divider of the present invention can be effectively applied to high frequency bands, Improves the shortcomings of traditional power dividers that cannot provide effective isolation when operating at high frequencies to meet the needs of power distribution

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