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2.4/5.8GHz dual-frequency MIMO (Multiple Input Multiple Output) omnidirectional antenna

An omnidirectional antenna and antenna technology, applied in the direction of antenna, antenna grounding device, antenna grounding switch structure connection, etc., can solve the problems of high cost, difficult processing, difficult debugging, etc., and achieve low cost, convenient production, stable and reliable performance Effect

Active Publication Date: 2011-05-18
KENBOTONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it overcomes the shortcomings of traditional dual-band antennas such as difficult processing, difficult debugging, and high cost, and realizes multi-band omnidirectional radiation, so it is necessary to design a MIMO omnidirectional antenna.

Method used

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  • 2.4/5.8GHz dual-frequency MIMO (Multiple Input Multiple Output) omnidirectional antenna
  • 2.4/5.8GHz dual-frequency MIMO (Multiple Input Multiple Output) omnidirectional antenna
  • 2.4/5.8GHz dual-frequency MIMO (Multiple Input Multiple Output) omnidirectional antenna

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Embodiment Construction

[0022] Such as Figure 1a-Figure 1b , the present invention adopts the unit vibrator as a PCB double-sided symmetric vibrator structure, wherein the part shown in 1 is the top layer copper clad pattern; the part shown in 2 is the bottom layer copper clad pattern; 3 is the dielectric substrate.

[0023] see Figure 1a-Figure 1b , the monolithic microstrip antenna shown in the present invention can be divided into several vibrator units, and each unit is composed of the top layer of copper clad—conductive band 1, the bottom layer of copper clad—ground wire 2 and the dielectric substrate 3, and the top layer and the bottom layer The copper clad pattern is symmetrical; the unit oscillator is a PCB double-sided symmetrical oscillator, which forms the integration of the radiation unit and the feed network on the same board, and different gains can be achieved by changing the number of units. The current transmits while radiating on the microstrip line, achieving the effect of the tra...

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Abstract

The invention discloses a 2.4 / 5.8GHz dual-frequency MIMO (Multiple Input Multiple Output) omnidirectional antenna comprising an antenna cover consisting of an antenna bottom cover, an antenna sheath and a top cover. A metal bar longitudinally passes through the axial line of the antenna so as to tightly pull the antenna bottom cover, the antenna sheath and the top cover into a whole. The 2.4 / 5.8GHz dual-frequency MIMO omnidirectional antenna is characterized in that a plurality of microstrip plates with different frequencies in a shell are alternatively and uniformly distributed on the same one circumference, each microstrip plate consists of a medium substrate, a guide belt and a ground line, and the guide belt and the ground line are symmetrically and reversely arranged on two surfaces of the medium substrate, and are also respectively integrated with an inner conductor and an outer conductor of a coaxial connector. The invention breaks through the limitation of single frequency of the traditional omnidirectional antenna, and overcomes the shortages of high machining and debugging difficulties, high cost and the like; and the alternatively and uniformly distributed microstrip plates realizes the multiple frequencies coexistence; meanwhile, the invention exceeds the normal omnidirectional antenna in the aspects of bandwidth and gain. The invention has simple process and is beneficial to the batch production due to the plane PCB (Printed Circuit Board) structure.

Description

technical field [0001] The invention relates to an omnidirectional antenna for communication, in particular to a microstrip transmission type 2.4 / 5.8GHz dual-frequency MIMO omnidirectional antenna. Background technique [0002] With the emergence of MIMO technology, a method of using multiple transmitting antennas and multiple receiving antennas for high-speed data transmission has been proposed, and it will become a trend in the development of wireless communication technology in the future. It has been proved that a MIMO system with M transmitting antennas and P receiving antennas can almost increase the channel capacity by M times under the condition of P≥M. Essentially, if the fading between each pair of transmit and receive antennas is independent, multiple parallel subchannels can be generated. The transmission data rate can be increased if different information streams are transmitted on these parallel sub-channels, which is called spatial multiplexing. For traditio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/42H01Q1/48H01Q1/50H01Q5/01H01Q13/08H01Q5/10
Inventor 宋茂盛苏光杰
Owner KENBOTONG TECH
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