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Chip integrated waveguide multiplexer

A substrate-integrated waveguide and integrated waveguide technology, which is applied to waveguide devices, waveguides, electrical components, etc., can solve the problems of difficult processing of multiplexers, large external radiation, and large insertion loss, and achieve easy integration and high Q value , low loss effect

Inactive Publication Date: 2005-11-23
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The performance of the multiplexer directly affects the performance of the entire system. High-Q, low-loss, and high-performance high-frequency multiplexers can be produced by using microwave and millimeter wave metal waveguides. However, this kind of multiplexer is difficult to process at first, especially It is in the millimeter wave band, making this kind of multiplexer requires high processing accuracy; secondly, the production cost of this kind of multiplexer is relatively expensive; thirdly, this kind of multiplexer is relatively bulky, and it is difficult to apply to microwave and millimeter wave integrated circuit design
Microstrip circuits can be used to design planar multiplexers that are easy to integrate, but this kind of multiplexer is prone to interference, and at the same time has large external radiation and large insertion loss, so it is not suitable for high-frequency circuit design.

Method used

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Examples

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Embodiment 1

[0019] A substrate integrated waveguide multiplexer for feeding a microstrip antenna, comprising a dielectric substrate 1 covered with metal patches 2 and 3 on both sides, a main waveguide 4 is provided on the dielectric substrate 1, and a main waveguide 4 At least one sub-waveguide is connected to the sub-waveguide and one end of each sub-waveguide is connected to the main waveguide 4, the other end of each sub-waveguide is respectively connected with a substrate integrated waveguide cavity, and one end of the substrate integrated waveguide cavity is provided with The inductive window 7 for coupling of the sub-waveguides, the main waveguide 4 and the sub-waveguides are all composed of two rows of metallized through holes arranged on the dielectric substrate 1. One end of the main waveguide 4 is the input end, and the other end of the substrate integrated waveguide cavity As the output end, the substrate integrated waveguide cavity is enclosed by metallized through holes provided ...

Embodiment 2

[0021] The multiplexer of the present invention includes a duplexer, a triplexer, a quadruple or a (N-1) multiplexer (N is the number of ports). The following is a detailed description of the triplexer (see figure 1 ):

[0022] A substrate-integrated waveguide 3 multiplier for feeding a microstrip antenna, comprising a dielectric substrate 1 covered with metal patches 2 and 3 on both sides, a main waveguide 4 is provided on the dielectric substrate 1, and a main waveguide 4 Three sub-waveguides 51, 52, 53 are connected to the upper side, and one end of the three sub-waveguides 51, 52, 53 is connected to the main waveguide 4, and the other ends of the three sub-waveguides are respectively connected to the substrate integrated waveguide cavity 61 , 62, 63, one end of the substrate integrated waveguide cavity 61, 62, 63 is provided with inductive windows 611, 621, 631 for coupling with the sub-waveguides, the main waveguide 4 and the sub-waveguides are both set on the dielectric sub...

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Abstract

This invention discloses one chip integration waveguide polyplexer with antenna, which comprises the medium chip with both sides coated with metal paster, wherein, the chip is located with main waveguide at least connected to one sub-waveguide with one end connected to main waveguide and with other end connected to chip integration waveguide chamber. The chip integration waveguide chamber one end is located with sensor window coupled with waveguide, wherein, the main and sub waveguide are composed of two rows of metal holes on medium chip and the one end is as input end and the other end as output end and the chamber is composed of metal hole located on the medium chip.

Description

Technical field [0001] The invention relates to a key component of a feeder system, in particular to a substrate integrated waveguide multiplexer for feeding of a microstrip antenna. Background technique [0002] Microwave and millimeter wave duplexers have been widely used in microwave and millimeter wave radio frequency systems. It is a key component of the feeder system. Especially in microwave and millimeter wave integrated circuits, the feed of microstrip antennas needs to use low loss, High-performance multiplexer. The performance of the multiplexer directly affects the performance of the entire system. The use of microwave and millimeter wave metal waveguides can produce high-Q, low-loss, high-performance high-frequency multiplexers, but such multiplexers are difficult to process at first, especially In the millimeter wave band, the production of this multiplexer requires high processing accuracy; secondly, the production cost of this multiplexer is relatively expensive; t...

Claims

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Application Information

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IPC IPC(8): H01P3/16
Inventor 郝张成洪伟吴柯
Owner SOUTHEAST UNIV
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