SIW (substrate integrated waveguide)-based retrodirective array antenna with polarization reversing function
A substrate-integrated waveguide and array antenna technology, applied in leaky waveguide antennas, antenna unit combinations with different polarization directions, circuits, etc., can solve the difficulties in scenarios where higher frequency backtracking arrays and radar dual-station applications cannot be applied. Increase the complexity of the feed network and other issues to achieve the effects of wide application value, low structural loss, and easy installation
Active Publication Date: 2015-04-15
SOUTHEAST UNIV
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Problems solved by technology
Although great progress has been made in retrospective antenna arrays in the past few decades, as the application of low-frequency spectrum becomes increasingly saturated, wireless communication systems and radar systems inevitably tend to develop towards higher frequencies. Design presents new challenges
Due to its own loss, the microstrip feed structure of the previous printed circuit board is no longer suitable for the realization of higher frequency traceback arrays.
The substrate-integrated waveguide structure can solve the problem of loss very well. Compared with the microstrip structure, it has smaller loss at higher frequencies, but the substrate-integrated waveguide structure increases the complexity of the feed network and improves the design. The difficulty, and brings difficulties to the scene of radar dual-station application, so this kind of retrospective array antenna is rare in the world
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[0020] The present invention will be further specifically described below in conjunction with the accompanying drawings and embodiments.
[0021] The retroactive array antenna with polarization reversing function based on the substrate integrated waveguide of the present invention is based on the printed circuit board technology and the substrate integrated waveguide structure, and the retroactive array antenna is manufactured on the double-sided copper clad microwave The dielectric substrate is processed with an array of through holes connected to the copper clad layer. The double-sided copper-clad microwave dielectric substrate 1 is a Rogers 4350 low-loss dielectric substrate with a thickness of 0.762mm and a dielectric constant of 3.66. The dielectric substrate has a copper-clad layer 2 on the upper surface and a copper-clad layer on the lower surface with a thickness of 0.018mm on both sides. 3. The diameter of a single through hole in the metal through hole array 6 connec...
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The invention discloses an SIW-based retrodirective array antenna with a polarization reversing function. The antenna comprises a microwave dielectric substrate, through hole arrays, a first radiating element array and a second radiating element array, wherein two sides of the microwave dielectric substrate are covered with copper; the through hole arrays are connected with copper covering layers on the upper side and the lower side of the microwave dielectric substrate; the first radiating element array is subjected to horizontal polarization; and the second radiating element array is subjected to perpendicular polarization. The retrodirective array antenna adopts an SIW structure, so that the loss of a connected network is smaller; and the retrodirective array antenna can be designed in a millimeter wave frequency band, so that application requirements of a high frequency band system are met, the area of the array antenna can be further reduced, the array antenna can be mounted easily, and the cost is reduced.
Description
technical field [0001] The invention belongs to the field of wireless communication and radar detection, and relates to a retroactive array antenna with polarization reversing function. Background technique [0002] With the rapid development of communication technology, new low-cost and high-performance antennas have become a focus of attention and research. Due to its self-tracking beam scanning characteristics, the retroactive array antenna can reflect the incident wave along the original direction when the position of the incident signal source is unknown, thereby improving the performance, efficiency and safety of the system. Compared with smart antennas using complex beamforming technology, retrospective array antennas have a wide range of application values due to their unique advantages of low complexity and low cost due to their simple implementation structure, which does not require any phase shifters and complex digital signal processing. Although great progres...
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IPC IPC(8): H01Q21/24H01Q13/20
Inventor 洪伟周浩
Owner SOUTHEAST UNIV