Plane multi-input/output antenna for wireless communication terminal
A multi-input, planar technology, applied to antennas suitable for movable objects, independent non-interacting antenna combinations, antennas, etc. The effect of large-scale processing, low cost and simple structure
Inactive Publication Date: 2010-07-28
ZHEJIANG UNIV
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Problems solved by technology
Most of the current antennas used in MIMO systems are three-dimensional structures, which take up a lot of space, and also bring difficulties to processing and production, making it difficult to be practical
Method used
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Embodiment Construction
[0022] Such as figure 1 , figure 2 and image 3 As shown, the planar MIMO antenna for a wireless communication terminal includes a square substrate 5 , the top surface of the substrate 5 is covered with a metal layer 1 , and the bottom surface of the substrate 5 is provided with four feeders 6 .
[0023] The metal layer 1 has four antenna slots symmetrically centered on the intersection of the square diagonals, forming four slot antennas 3, the slot antenna 3 is a through slot, and the bottom of the slot antenna 3 is the top surface of the substrate 5; the slot antenna 3 One end of is open on one side of the square, the slot antenna 3 is perpendicular to the side, the slot antenna 3 is parallel to the two corresponding sides of the square, and the distance to a parallel side is D 2 is the distance D to the other parallel side 1 5 times; the length of the slot antenna 3 is λ / 3.25, the width of the slot antenna 3 is λ / 70, and λ is the waveguide wavelength corresponding to th...
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The invention relates to a plane multi-input / output antenna for a wireless communication terminal. The present antenna for the wireless communication terminal has poor coupling performance and occupies large area. The plane multi-input / output antenna comprises a square base plate, a metal layer is coated on the top surface of the base plate, and four feeder lines are arranged on the bottom surface of the base plate. The metal layer is symmetrically provided with four antenna slots with an intersection point of diagonal lines of a square as the center, so as to form four slot antennas; meanwhile, the metal layer is symmetrically provided with four isolation slot groups with the intersection point of the diagonal lines of the square as the center, each isolation slot group comprises 2 to 6 parallel isolation slots, the isolation slots are through slots, and the isolation slot groups are arranged between two vertical slot antennas. The four feeder lines are arranged correspondingly to the four slot antennas. A connecting hole which is vertical to the surface of the base plate is arranged at the bottom part of each slot antenna. The plane multi-input / output antenna has the characteristics of low profile, small volume, simple structure, low cost and easy large-scale processing as well as manufacturing.
Description
technical field [0001] The invention belongs to the technical field of wireless communication, and relates to an antenna, in particular to a planar multi-input multi-output antenna for a wireless communication terminal. Background technique [0002] With the continuous development of wireless communication systems, in order to meet different needs of users at the same time, the communication system has an increasing requirement for channel transmission data rate, so the requirement for channel capacity is also increasing. The MIMO system provides a better solution to this problem. The MIMO system can increase the channel capacity without increasing the spectrum width and transmission power. The multi-input multi-output antenna structure plays a very important role as the terminal of the system. [0003] In order to use the MIMO system for the terminal of the communication system with limited volume, a compact antenna structure is required, but this will introduce strong co...
Claims
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IPC IPC(8): H01Q1/27H01Q1/38H01Q1/52H01Q9/00H01Q21/28
Inventor 李慧熊江何赛灵
Owner ZHEJIANG UNIV