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Radial power divider/combiner based on electromagnetic band gap structure

An electromagnetic bandgap structure and radial power technology, applied in the field of millimeter wave and terahertz power synthesis, can solve problems such as processing difficulties and energy leakage, and achieve the effects of solving processing difficulties, low transmission loss and serious energy leakage.

Inactive Publication Date: 2022-03-29
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the problems of energy leakage and processing difficulties caused by waveguide splitting when the TE10 mode electric field is output parallel to the axis in the above-mentioned prior art, and proposes a radial power distribution / distribution based on an electromagnetic bandgap structure synthesizer

Method used

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  • Radial power divider/combiner based on electromagnetic band gap structure
  • Radial power divider/combiner based on electromagnetic band gap structure
  • Radial power divider/combiner based on electromagnetic band gap structure

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Embodiment 1

[0035] This embodiment provides a radial power splitter / combiner based on an electromagnetic bandgap structure with an operating frequency of 200-255 GHz and a circular waveguide circularly polarized TE11 mode. The structure is as follows Figure 1~4 As shown, including matching upper cover plate 1 and lower cavity 2;

[0036] The center of the upper surface of the upper cover plate 1 is sequentially stacked with a matching circular waveguide 12 and an input circular waveguide 11. The radius of the input circular waveguide 11 is 0.47 mm, which satisfies the transmission conditions of the circularly polarized TE11 mode, and the radius of the matching circular waveguide 12 is 0.6 mm. mm, the height is 0.37mm.

[0037] The center of the upper surface of the lower cavity 2 is provided with a cylindrical power distribution / synthesis cavity 21 adjacent to the matching circular waveguide 12. The radius of the power distribution / synthesis cavity 21 is 1.64mm, and the height is the sam...

Embodiment 2

[0045] In order to illustrate the universality of the radial power splitter / combiner proposed in the present invention, the present embodiment adopts a similar technical scheme to provide a radial power combiner / distributor based on an electromagnetic bandgap structure working in a circular waveguide TM01 mode, Compared with Embodiment 1, the difference is only to adjust the size of the input circular waveguide 11, the matching circular waveguide 12 and the raised matching structure. The specific parameters are: the radius of the input circular waveguide 11 is 0.57mm, which meets the transmission conditions of the TM01 mode; the matching The circular waveguide 12 has a radius of 0.67mm and a height of 0.39mm; the raised matching structure has a cylinder above it with a diameter of 0.88mm and a height of 0.35mm, and a cylinder below it with a diameter of 2.51mm and a height of 0.3mm; the rest of the structure is the same.

[0046] The radial power combiner / distributor described ...

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Abstract

The invention discloses a radial power divider / synthesizer based on an electromagnetic band gap structure, which belongs to the technical field of millimeter wave and terahertz power synthesis, and comprises an upper cover plate of which the center is sequentially superposed with a matching circular waveguide and an input circular waveguide, the center of the lower cavity is provided with a power distribution / synthesis cavity and a plurality of rectangular waveguides with electromagnetic band gap structures, the rectangular waveguides are arranged at equal included angles, and each rectangular waveguide with the electromagnetic band gap structure is composed of a rectangular waveguide and pins periodically arranged on the section of the lower cavity on the two sides of the wide edge of the rectangular waveguide. Electromagnetic waves in a specific frequency range are effectively suppressed by using the electromagnetic band gap structure, leakage-free transmission of electromagnetic signals is realized, and the height of the pin forming the electromagnetic band gap structure is smaller than that of the rectangular waveguide, so that the manufacturing difficulty and the processing cost in a terahertz frequency band can be reduced; therefore, the problems of serious energy leakage and difficult processing caused by waveguide narrow side subdivision processing when the radial power divider / synthesizer is used for a high frequency band are solved.

Description

technical field [0001] The invention belongs to the technical field of millimeter wave and terahertz power synthesis, and in particular relates to a radial power distribution / combiner based on an electromagnetic bandgap structure. Background technique [0002] In the high-end millimeter-wave frequency band or even the terahertz frequency band, the output power of a single solid-state device is very small, and the power of multiple solid-state devices needs to be combined to increase the power level. Compared with binary power combination, radial power combination can achieve multiple The channel power combination / distribution avoids the problem that the combination efficiency decreases with the increase of the channel number, making it a research boom. Combined with the development status of single-chip development and the processing difficulty of power combining networks, the highest operating frequency of radial power combining networks reported at home and abroad is only ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/12H01P1/20
CPCH01P5/12H01P1/2005
Inventor 张勇张博曾晓楠
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA