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Wideband multi-channel substrate integrated waveguide power divider adopting novel high-isolation technology

A substrate-integrated waveguide, integrated waveguide technology, applied to waveguide devices, circuits, electrical components, etc., can solve problems such as bandwidth, isolation, and volume power fractions.

Inactive Publication Date: 2012-06-13
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional power splitting / combining circuits, such as Wilkinson power splitters, Lange couplers, and branch line couplers, are far from meeting the above application requirements due to limitations in bandwidth, isolation, volume, insertion loss, and number of power points.

Method used

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  • Wideband multi-channel substrate integrated waveguide power divider adopting novel high-isolation technology
  • Wideband multi-channel substrate integrated waveguide power divider adopting novel high-isolation technology
  • Wideband multi-channel substrate integrated waveguide power divider adopting novel high-isolation technology

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example 1

[0022] Example 1: If figure 2 As shown, the novel broadband four-way substrate integrated rectangular waveguide power divider proposed by the present invention includes five parts. They are: mixed multi-via probe, drainage groove, resistive isolation groove, isolation resistor, substrate integrated rectangular waveguide cavity.

[0023] A novel hybrid multi-via probe is used to achieve broadband matching between the input port and the substrate-integrated rectangular waveguide cavity. There are drainage grooves and resistive isolation grooves on the substrate-integrated rectangular waveguide cavity, and the drainage grooves have the function of guiding current; and the isolation resistors are installed on the resistive isolation grooves, which can realize good isolation characteristics between output ports. The mixed multi-via probes at the input end are located in the center of the cavity, and the mixed multi-via probes at the output port are located on the periphery of the...

example 2

[0026] Example 2: If image 3 As shown, the novel broadband sixteen-channel substrate integrated radial waveguide power divider proposed by the present invention includes four parts. They are: hybrid multi-via probe, resistive isolation slot, isolation resistor, and substrate-integrated waveguide cavity.

[0027] A novel hybrid multi-via probe is used to achieve broadband matching between the input port and the substrate-integrated radial waveguide cavity. There is a resistive isolation slot on the substrate integrated radial waveguide cavity, and isolation resistors are installed on the resistive isolation slot, which can realize good isolation characteristics between output ports. The mixed multi-via probes at the input end are located in the center of the cavity, and the mixed multi-via probes at the output port are located on the periphery of the central input port, and are evenly spaced on the circle, and the interval angle between adjacent output ports is 360 / N(N is th...

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Abstract

The invention relates to a wideband multi-channel substrate integrated waveguide power divider adopting a novel high-isolation technology. Input / output ports and a substrate integrated waveguide cavity are connected by using a novel mixed multi-through-hole probe to realize wideband impedance matching. A flow drainage groove and a resistive isolating groove are formed on the substrate integrated waveguide cavity, and an isolating resistor is arranged on the resistive isolating groove to obtain high isolation characteristic of each output port. The output ports are distributed at equal intervals on a circle by taking an input port as the center, and the whole power dividing circuit has axial rotation symmetry, so that the amplitudes of multi-channel power dividing signals are equal, N-channel parallel power division is realized, and signal transmission loss can be reduced to the largest extent. The power dividing circuit can be flexibly designed into an in-phase power divider, an inverse-phase power divider and a differential power divider. The wideband multi-channel substrate integrated waveguide power divider has the advantages of wide band, low insertion loss, high isolation, any multi-channel power dividing output, high input / output standing wave, high amplitude consistency of each channel of power dividing output signal, and the like. The wideband multi-channel substrate integrated waveguide power divider is mainly applicable to a microwave millimeter wave power synthesis amplification system, a phased-array antenna feed network and the like, and has a wide application prospect in microwave millimeter wave systems for communication, radar and measurement.

Description

Technical field [0001] The invention relates to a broadband substrate integrated waveguide power divider with a hybrid multi-via current probe, a drainage groove and a resistive isolation groove. Background technique [0002] The power splitter is a key component of the high-power synthesis amplifier and phased array antenna feed system, which directly determines the performance of the system. With the rapid development of military and civilian communication systems, the demand for broadband, high-efficiency high-power amplifiers and the need for feed networks with broadband, high isolation, and low insertion loss characteristics in phased array antennas are increasing day by day. This requires multi-channel power dividers / combiners with wideband, high efficiency, low loss and high isolation characteristics. Traditional power dividing / synthesizing circuits, such as Wilkinson power dividers, Lange couplers, and branch line couplers, are far from meeting the needs of the abov...

Claims

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Application Information

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IPC IPC(8): H01P5/16
Inventor 宋开军陈宁波樊勇
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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