Boradband miniaturisation four-terminal port antennae located on the cylinder conductor platform

Abstract

The invention provides a broadband, miniaturisation four-terminal port antennae located on the cylinder conductor platform which belongs to the field of wireless radar technology. The invention includes: a primary radiation unit, an auxiliary radiation element, a power feed unit, a antennae stand, a cylinder conductor and a metal cylinder. The primary radiation unit is combined with the antenna arrangement by the metal cylinder with screw thread. The power feed unit is composed of four cylindrical model feeder lines and four power feed terminal ports which are mutually symmetrical and evenly distributed on X, Y positive and negative axes. The auxiliary radiating element is composed of four mutual symmetrical metal discs, and is connected with four feeder lines of power feed unit for realizing electromagnetic coupling with primary radiation unit. The antennae stand is connected with the cylinder conductor, and four evenly distributed cylindrical model through-holes are dug inside them,and a power feed unit is placed in the through-hole. The antennae provided by the invention can realize broadband, and has higher PEAK Gain on designated radio frequency, and has compact conformation,small volume for being installed on the cylinder conductor platform easily.

Description

technical field [0001] The invention relates to an antenna in the technical field of wireless radar, in particular to a broadband miniaturized four-port antenna located on a cylindrical conductor platform. Background technique [0002] With the rapid development of science and technology, the future environment will become increasingly complex, requiring precision-guided weapons to accurately intercept and track targets under complex backgrounds and strong interference. The use of precision guidance technology for missile terminal guidance can effectively improve the missile's defense penetration capability and combat effectiveness. The missile terminal guidance system (seeker) is one of the important factors that determine the final combat effect of the missile weapon system. For example, many countries are currently making further technical preparations for the development of next-generation aviation missiles; the United States and other Western weapons powers have put ma...

AI Technical Summary

Problems solved by technology

However, the antenna according to the US patent specification has a very large volume, for which reason its use is very limited

In addition, it is designed as a single-band antenna, so it cannot be used for dual-band

[0004] The search also found that Zhong Lingling et al. published an article on the Proceedings of Asia-Pacific Microwave Conference 2007: A Novel Ultrawide-band Wide Beam Circular Polarization Antenna ), proposed an ultra-wideband circularly polarized antenna structure. Although it achieves very good ultra-wideband performance, its polarization characteristics are only limited to the circular polarization mode, which is not widely used in comparison.

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