Dual-coupling, multi-band and wide-frequency monopole antenna and signal coupling method thereof

Abstract

The invention provides a dual-coupling, multi-band and wide-frequency monopole antenna and a signal coupling method thereof. In the wide-frequency monopole antenna, a positioning space and a fixed space are respectively arranged at two opposite side edges of an insulation support so that a grounding wire is assembled in the positioning space at one side of the insulation support, a coupling side is arranged at the top of the grounding wire, extends in a bending shape and bridges to the top of the fixed space at the other side, a reference grounding surface with relatively large area is arranged at the bottom of the grounding wire and is arranged at the bottoms of the insulation support and a signal line, the signal line is assembled in the fixed space of the insulation support, a coupling part is arranged at the top of the signal line and extends to the coupling side adjacent to the grounding line, a predetermined spacing distance is formed, and a signal feeding part is arranged at the bottom of the signal line, is bent and extends and is used for electrically connecting an external preset signal transmission line. The purpose of larger working frequency band is achieved by a direct feeding method.

Description

technical field [0001] The invention relates to a double-coupled multi-band broadband monopole antenna and a signal coupling method thereof, especially to a monopole antenna capable of obtaining a larger operating bandwidth, which achieves dual-frequency resonance by covering the signal line with a ground wire, and relies on The grounded double-coupled feed-in monopole antenna achieves the purpose of increasing the working bandwidth of the antenna. Background technique [0002] By the way, as the high-tech era continues to advance and change with each passing day, the wireless transmission interface of wireless communication has also been continuously improved and improved. It has also evolved from the early second and third generation (2G, 3G) mobile communication systems to the fourth generation (4G) ) mobile communication system, and Long Term Evolution (LTE) is one of the communication protocols of the fourth generation communication system, and the operation of Long Ter...

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Problems solved by technology

[0004] In addition, in general vehicles, various wireless signals such as amplitude modulation (AM) or frequency modulation (FM), watching wireless TV programs or satellite signals can also be received through the antenna; It is installed obliquely to adjust the angle of receiving the wireless signal strength. However, when the car is running at high speed, it will generate strong wind resistance. , wind pressure, it is easy to cause the single-rod antenna to be bent or deformed by the strong wind, which will affect the quality of unreceived signal reception; Shaped appearance design forms a good diversion effect to reduce wind resistance and wind shear. It is also widely used in automobiles for receiving wireless signals. Generally, shark fin car antennas are mostly made of shark fin outer covers, antennas , control circuit unit, fixed frame and base, the antenna is protected by the shark fin cover, and it is not easily affected by strong winds, and the quality of wireless signal reception is also better

[0005] For various monopole antennas used in receiving wireless signals, when the antenna is installed on a larger metal plane (the roof of a car or the ground plane, etc.), the operating bandwidth of the antenna in the low frequency band can only have 10% of the frequency band. Wide utilization rate, and the operating bandwidth of the high frequency band can only have a bandwidth utilization rate of 8%, which can no longer meet the bandwidth requirements of the fourth generation mobile communication system (4G LTE) today, and the radiation rate cannot reach 40%. The above standards cannot adapt to multi-band and wide-band antenna application modes in various environments, resulting in bandwidth reduction that affects wireless signal reception

[0006] Therefore, how to solve the problems and troubles that the operating bandwidth utilization rate of the current monopole antenna cannot be increased, cannot meet the bandwidth requirements of today's wireless communication systems, and the radiation rate cannot meet the standards of wireless communication systems. It is urgent for relevant manufacturers engaged in this industry to study the direction of improvement

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