A Low Profile Patch Antenna with Low Scattering Properties

Abstract

The invention belongs to the technical field of the design of patch antennae and relates to a low-profile patch antenna low in scattering property. The low-profile patch antenna comprises a first layer of dielectric slab, an antenna radiating unit, a second layer of dielectric slab, one or more conducting dielectric slices and a grounded conducting plane, wherein the antenna radiating unit is arranged on the upper surface of the first layer of dielectric slab and is composed of conducting media, the second layer of dielectric slab is loaded on the upper surface of the radiating unit, the conducting dielectric slices are arranged on the upper surface of the second layer of dielectric slab, the size of each conducting dielectric slice is far smaller than a working wave length, the grounded conducting plane is arranged on the lower surface of the first layer of dielectric slab and is composed of conducting media; the center of each conducting dielectric slice on the upper surface of the second layer of dielectric slab penetrates through the second layer of dielectric slab and then is connected with the antenna radiating unit which is located on the upper surface of the first layer of dielectric slab, and the antenna radiating unit on the upper surface of the first layer of dielectric slab is connected with the grounded conducting plane through coaxial probes / microstrip lines. The low-profile patch antenna has the advantages that the structure is simple, the low scattering within the working band is achieved, the manufacturing cost is low, and the low-profile patch antenna is conformal.

Description

technical field [0001] The invention belongs to the field of patch antenna design, in particular to a low-profile patch antenna with low scattering characteristics. Background technique [0002] In recent years, the rapid development of electronic warfare and information warfare has placed higher and higher requirements on the stealth technology of aircraft and radar, and low-profile antennas are widely used because of their light weight, small size, low profile and unique structural features that are easy to conform to. For military and civilian use. Therefore, it is very important to develop low-scattering high-speed aircraft and radar antennas to improve target stealth performance. At the same time, the antenna system is also an important part of the aircraft and radar. Its low scattering characteristics can effectively avoid electromagnetic interference and radar detection, and also play a great role in improving the overall stealth performance of the aircraft. Antenna...

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