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Reconfigurable waveguide mixed slot antenna based on S-PIN diode

A technology of S-PIN and slot antenna, which is applied to leaky waveguide antennas, antennas, electrical components, etc., can solve the problems that solid-state plasma is not easy to excite large areas, and it is difficult for antenna radiators to reduce volume and cost. Effect

Inactive Publication Date: 2014-04-02
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This is because solid-state plasma is not easy to excite in a large area and with high concentration, and it is difficult to be directly used as an antenna radiator like gaseous plasma

Method used

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  • Reconfigurable waveguide mixed slot antenna based on S-PIN diode
  • Reconfigurable waveguide mixed slot antenna based on S-PIN diode
  • Reconfigurable waveguide mixed slot antenna based on S-PIN diode

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0026] Such as figure 1 As shown, the reconfigurable waveguide hybrid slot antenna cuts 16 slots 1 on each of the two waveguide wide walls and the two waveguide narrow walls. The slots in the wide wall of the waveguide are parallel to the long edges of the rectangular waveguide, and the longitudinal distance between the slots is ,in is the waveguide wavelength. There is an included angle between the cutting direction of the narrow wall of the waveguide and the vertical direction of the long edge (each included angle is different, ranging from 4-15°), and the distance between the centers of the slots is also , and cut into the wide wall of the waveguide at a certain depth. One end of the waveguide is used for feeding power, and the other end is added with a reflector 2, and the opened...

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Abstract

A reconfigurable waveguide mixing slot antenna based on S-PIN diode. Each of wide walls or narrow walls of the main rectangle waveguide of the antenna has 8-32 slots (1) by cutting, and an S-PIN diode is set on each slot (1). When the antenna is working, three walls of the waveguide do not generate radiation, the S-PIN diodes on which are forward biased. A thin layer similar to metal is formatted, and all slots (1) on the three walls of the waveguide are closed. Radiation of the antenna is generated by the slot array on the other wall of the waveguide, and therefore stronger radiation can be generated on a needed direction. An omnidirectional scanning can be achieved by controlling the forward bias voltage of S-PIN diodes. An omnidirectional radiation can be achieved by removing all of the forward bias voltage of S-PIN diodes. Furthermore, the directional pattern of the antenna is reconfigurable and the working mode can be switched among omnidirectional radiation, directional radiation and omnidirectional scanning freely.

Description

technical field [0001] The invention relates to solid-state plasma technology and waveguide slot antenna technology, in particular to a waveguide hybrid slot antenna that utilizes solid-state plasma to realize reconfigurable pattern. Background technique [0002] The waveguide slot antenna is made by slotting on the metal waveguide, and the slotting forms generally include waveguide wide-wall longitudinal slots, waveguide wide-wall inclined slots, waveguide narrow-wall inclined slots, etc. Slot antennas have the advantages of high radiation efficiency, less energy leakage, high aperture surface utilization, compact structure, convenient installation, high strength, and strong wind resistance. They occupy an important position in the modern electronics industry and are widely used on the ground, shipboard, etc. , airborne, navigation and other fields, and the waveguide slot antenna has become the preferred form of airborne radar antenna. [0003] In recent years, in order to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q13/22
CPCH01Q3/24H01Q13/22
Inventor 胡斌杰张家乐
Owner SOUTH CHINA UNIV OF TECH
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