Longbo Lens (2~48 Beams)

  • Source: eahison
  • Date:07/08/2019

A Longbo lens antenna currently developed by Eahison is preheated in the market.According to the relevant personnel of your company: lens frequency is divided into: broadband 10 beam lens antenna / high frequency frequency eight beam lens antenna / high frequency frequency four beam lens antenna, etc.:

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Longbo lens multi-beam antenna (2~48 beams) Longbo lens antenna is a new antenna form researched on new material technology. Compared with common antenna technology, it has great advantages. In the direction of technology research and development, Eahison broke through the high-level technical research and development bottlenecks again, and obtained various invention patents.

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First, the characteristics of the system: high speed, low latency, large capacity
The 5G network architecture is the direction of network diversification, broadband, integration and intelligence.
5G is the foundation of the Internet of Everything. The main equipment solves high speed and low delay. The passive multi-beam antenna can solve the problem of higher capacity and lower efficiency.
In terms of technology, the Butler matrix and the Lombor lens are key technologies for 5G multi-beam antennas.
At present, the coverage of macro stations of 5G base stations is reduced. Compared with 4G networks, the number of base station requirements is estimated to increase by more than 4 times to 15 million. The number of 5G stations is likely to reach more than 100 million.

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Second, Longbo lens principle      
In 1944, R.K. Luneburg proposed the concept of the Lombor lens based on geometric optics. The Lonber lens antenna is a spherically symmetric medium retardation lens whose function of refractive index changes with radius is:        n=(2-r/R)1/2
r is the radial distance from the center of the sphere and R is the radius of the sphere. When r = R, n = 1, in the center of the sphere (r = 0) n = 2 .
The Lombor lens has the property of concentrating incident plane waves to the focal point of the ball's facing position. With the Lombor lens antenna, signals from multiple directions can be received simultaneously, as long as the ball surface can accommodate all feeds or other receiving devices. Simply move the feed position to change the direction of the beam received or transmitted.

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Third, the advantages of the Longbo lens antenna:
High gain: increase coverage or reduce transmit power (gain 21DB)
Light weight: 20KG/set for easy installation and maintenance
Module reduction: only a quarter of large-scale array antennas(Massive MIMO) , Effectively reduce equipment costs
Reduced power consumption: device modules are reduced, power is naturally reduced by less than 1/100 of Massive MIMO
The efficiency is improved: the efficiency of the lens is 90%, and the MASSIVE MIMO is only 60%, which simplifies the feeding network and has higher radiation efficiency. It has been explored by the communication industry and has a new bright spot in the market application field.

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