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Antenna system, communication terminal and base station

An antenna system and system ground technology, which can be applied to antennas, resonant antennas, antenna arrays, etc., can solve problems such as poor reliability of antenna systems, and achieve the effects of good reliability, strong and stable communication signals, and wide frequency band coverage.

Active Publication Date: 2020-09-18
AAC TECH PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an antenna system with strong and stable communication signal, good reliability and wide frequency range, aiming to solve the technical problem of poor reliability of the existing antenna system

Method used

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  • Antenna system, communication terminal and base station
  • Antenna system, communication terminal and base station
  • Antenna system, communication terminal and base station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] like Figure 1-Figure 4 As shown, an antenna system includes a system ground unit 10 and a millimeter-wave antenna unit 20, the system ground unit 10 includes a receiving hole 101 passing through it, and the millimeter-wave antenna unit 20 is embedded and fixed in the receiving hole 101, the millimeter-wave antenna unit 20 includes a radiator 201, a first substrate layer 202, a second substrate layer 203, a power feeder 204, a third substrate layer 205, and a ground layer 206 that are sequentially stacked. The feed body 204 is provided with a slot zone 2041 and a feed port 2042, the slot zone 2041 has an opening 2041a through to one side of the feed body 204, and the feed port 2042 is adjacent to the opening 2041a, the ground layer 206 is electrically connected to the system ground unit 10, and the radiator 201 is spaced apart from the feeder 204 to form a coupling. In this embodiment, the radiator 201 , the first base material layer 202 , the second base material laye...

Embodiment 2

[0056] The difference between this embodiment and Embodiment 1 is that: the millimeter-wave antenna units 20 include four and form a 2×2 matrix distribution.

[0057] like Figure 5 and Image 6 As shown, the millimeter wave antenna units 20 are respectively a first unit 20a, a second unit 20b, a third unit 20c and a fourth unit 20d, arranged in a 2×2 matrix layout. This smaller-sized phased array antenna structure is suitable for smart terminals in 5G networks, such as mobile phones and tablets. In this 2×2 rectangular phased array layout, the phased array can perform beamforming and beam scanning at different θ angles on any Phi plane, that is, the beam scanning is almost omnidirectional. This is achieved by introducing appropriate phase shifts to the four corresponding mmWave antenna elements 20 .

[0058] Figure 12-Figure 19 Simulation results at 28GHz are shown, showing a 2×2 (4-element) rectangular phased array antenna at Phi=0° (XZ plane), Phi=45°, Phi=90° (YZ plan...

Embodiment 3

[0062] The difference between this embodiment and Embodiment 1 is that: the millimeter-wave antenna units 20 include 64 and form an 8×8 matrix distribution.

[0063] like Figure 7 and Figure 8 As shown, this larger-sized phased-array antenna structure is suitable for small-cell devices in 5G networks, such as small base stations. In this 8×8 rectangular phased array layout, the phased array can perform beamforming and beam scanning at different θ angles on any Phi plane, that is, the beam scanning is almost omnidirectional. This is achieved by introducing appropriate phase shifts to the 64 corresponding mmWave antenna elements 20 .

[0064] Figure 21-24 The simulation results at 28GHz are given, showing the 8×8 (64 elements) rectangular phased array antenna at Phi=0° (XZ plane), Phi=45°, Phi=90° (YZ plane) and Phi=315° Beam scan pattern on a plane.

[0065] Figure 21 It is shown that in the Phi=0° plane, the main beam gain can reach 15dBi in the scanning range from θ...

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Abstract

The present invention provides an antenna system, a communication terminal and a base station, wherein the antenna system includes a system ground unit and a millimeter-wave antenna unit, the system ground unit includes a receiving hole passing through it, and the millimeter-wave antenna unit is embedded and fixed in In the receiving hole, the millimeter-wave antenna unit includes a radiator, a first base material layer, a second base material layer, a power feeder, a third base material layer, and a ground layer stacked in sequence, and the power feeder A slot strip and a feed port are provided on the top, the slot strip has an opening through to one side of the feed body, the feed port is set adjacent to the opening, the ground layer is connected to the system ground The unit is electrically connected, and the radiator forms a coupling with the feeder. The antenna system of the present invention can realize omnidirectional radiation and has a scanning angle exceeding 100 degrees.

Description

【Technical field】 [0001] The invention relates to the field of communication electronic products, in particular to an antenna system, a communication terminal and a base station. 【Background technique】 [0002] Today's communication technology has developed to the fifth generation (5G), which requires higher data transmission rates. In order to meet this requirement, the spectrum of 5G networks will be extended to the millimeter wave range. Therefore, the requirements for mmWave antennas with radio frequencies above 20 GHz may be higher. mmWave antennas are typically configured in arrays, where multiple identical antenna elements are employed, often to achieve high gain due to increased free-space path loss in the high-frequency mmWave band. Also at mmWave frequencies, if line-of-sight (line-of-sight) is not maintained between the transmitter and receiver, the communication link can be broken. Therefore, it is important for mmWave antennas to be able to control the entire ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/24H01Q1/38H01Q1/48H01Q1/50H01Q3/30H01Q21/00H01Q21/06
CPCH01Q1/38H01Q1/48H01Q1/50H01Q3/30H01Q21/065H01Q21/0006H01Q1/246H01Q9/0457H01Q13/106H01Q9/0407
Inventor 陈友春黄源烽戴有祥
Owner AAC TECH PTE LTD
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