Ultra-low profile dual-band wide beam microstrip antenna based on multimode fusion

Abstract

The invention belongs to the technical field of wireless communication, and discloses an ultra-low profile dual-band wide beam microstrip antenna based on multimode fusion. A rectangular radiation microstrip and a rectangular parasitic microstrip are attached to a dielectric substrate, and are located at an uppermost layer of the antenna; the dielectric substrate is located on an intermediate layer of the ultra-low profile dual-band wide beam microstrip antenna based on the multimode fusion; a metal bottom plate is located on the lower layer of the dielectric substrate; a gap between the rectangular radiation microstrip and the rectangular parasitic microstrip is used for radiating rays to polarize electromagnetic waves; metal through holes are formed in the dielectric substrate along theedge of the rectangular radiation microstrip and the rectangular parasitic microstrip; the metal bottom plate is located at the lowermost portion of the entire antenna, and a radio frequency connectoris installed. The antenna meets the requirement of achieving a wide beam of the antenna under the low profile condition of a traditional microstrip antenna; while ensuring the high performance of theantenna, the influence of the antenna on the shape of a carrier can be minimized; an angular scan phase control array antenna with high performance is conveniently obtained.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to an ultra-low profile dual-band width beam microstrip antenna based on multi-mode fusion. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: low-profile antennas are more and more used in modern wireless communication technologies due to their low profile, small wind resistance, and easy conformity with carriers. Like microstrip antennas and planar helical antennas, for example, if the antenna is installed on the surface of the aircraft, the low-profile antenna can conform to the surface of the aircraft very well, and the antenna will not have additional aerodynamic effects on the aircraft itself. Because of its many advantages, microstrip antennas have been widely used in military and civilian fields since 1980. The beam width of the microstrip antenna can generally reach 70°-100°, which al...

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Problems solved by technology

The cost is high, many materials are used, and the processing is difficult. The existing technology can achieve a certain degree of wide beam characteristics, but at the same time the profile height of the antenna will increase, such as technology 1 and technology 3; the processing difficulty will increase, such as technology 2. Technology 3: The above two points determine the increase in the cost of the antenna. In the case of maintaining a low profile and low processing complexity, realizing the wide beam characteristic of the antenna can make the application range of the wide beam antenna wider

[0003] Although the above antennas achieve the wide beam characteristics of microstrip antennas, the manufacturing costs of the antennas are relatively high, which hinders the application of antennas in ultra-low profile communication systems

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