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Wideband Directional Coupler

    A Wideband Directional Coupler can be used to ensure that your data is transmitted in the most effective way possible whenever you need to send data over the internet. This kind of coupler has a multi-sectional construction that enables a small and simple-to-manufacture unit. Additionally, this device can be used to enable gain control or amplifier shutdown.


Multi-section form

A multi-section directional coupler like rf directional coupler typically has three sections or more. To achieve the ideal bandwidth, the outer sections must have relatively weak coupling, while the center section needs the strongest coupling. These multi-section couplers can perform better thanks to the current disclosure. It proves that a miniaturized directional coupler that outperforms a single-section model can be created by stacking tiny spiral broadside coupled lines in conjunction with a multi-layer MMIC process.

A directional coupler that operates in the 3 to 13 GHz band is part of the current disclosure. It has three 1 dB over couplings and is distinguished by a tight coupling in the center section. In comparison to a single-section model, this leads to a multi-section coupler with a wider bandwidth.

Why choose Hefei Topwave Wideband Directional Coupler?

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Advantages of compact structure, small volume and easy to manufacture

Directional couplers are typically passive components. They are utilized in microwave communication and imaging systems. The instrument's function is to sample a signal at a specific coupling level. They typically move in forward and reverse motions.

The compact 3 dB waveguide directional coupler is smaller and lighter than 4.3-10 directional coupler in conventional designs. Additionally, its bandwidth is wider. In this design, the main waveguide and a branch waveguide are connected by a pair of rectangular waveguides. In order to lengthen the coupling region, there are more rectangular apertures. Additionally, the insertion loss and coupling flatness have both improved.

The coupler's construction is symmetrical with respect to the middle planes. The typical CMOS process is compatible with this design. Each stage's deposition is preceded by chemical mechanical polishing. In addition, the surface roughness has been reduced to reduce excessive light reflection.

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