Unlock instant, AI-driven research and patent intelligence for your innovation.

Diversity antenna assembly in wireless communication terminal

A wireless communication terminal, diversity antenna technology, applied in diversity/multi-antenna systems, antenna supports/installation devices, antennas, etc., can solve the problem that the polarization diversity effect needs to be further improved, the number of antennas is optimized, and the improvement of communication quality is limited. and other problems, to achieve significant polarization diversity effect, high cross-polarization level, and the effect of reducing radiation damage

Inactive Publication Date: 2009-02-04
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, each antenna channel is selected according to the actual state of use through the switch, which is different from the requirements of MIMO communication, and the improvement of communication quality it can obtain is also limited.
In the Japanese Patent Hei 3-280625 "Portable Wireless Communication Device" granted to Obayashi Shuichi, a multi-antenna diversity layout scheme for handheld mobile communication terminals is given, but the invention does not provide a multi-antenna basis. The number and settings of the network are further optimized, and its polarization diversity effect needs to be further improved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Diversity antenna assembly in wireless communication terminal
  • Diversity antenna assembly in wireless communication terminal
  • Diversity antenna assembly in wireless communication terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Embodiment 1: Terminal Diversity Antenna with One Antenna Element and Orthogonal Feed

[0065] figure 1 It is a top view of the layout of the terminal diversity antenna provided as the first embodiment of the present invention, which has an antenna unit and an orthogonal feeding device, figure 2 is the side view of this embodiment, where 1 is the antenna unit, 2 is the antenna ground corresponding to antenna unit 1, 3 is the body of the wireless communication terminal, 4 is the flip cover of the wireless communication terminal, and 5 is the gap between the body and the flip cover. Hinge (or shaft).

[0066] The antenna unit 1 in this embodiment adopts such as Figure 7 The shown microstrip patch antenna, at this time, is respectively connected to its corresponding transmitter (for the transmitting antenna device) or corresponding receiver (for the receiving antenna device) through the orthogonal microstrip 101 and the microstrip 102 Say). Its far-field pattern unde...

Embodiment 2

[0068] Embodiment 2: Diversity antenna with two substantially orthogonal antenna elements positioned between the panel back and the chassis of the terminal body

[0069] image 3 It is a top view of the layout of the terminal diversity antenna as the second embodiment of the present invention, which has two substantially orthogonal antenna elements arranged between the panel back of the terminal body and the casing, Figure 4 is the side view of the diversity antenna, where 1 is the antenna unit, 2 is the antenna ground corresponding to antenna unit 1, 3 is the body of the wireless communication terminal, 4 is the flip cover of the wireless communication terminal, and 5 is the gap between the body and the flip cover. Hinge (or shaft).

[0070] The two antenna units 1 in this embodiment all adopt such as Figure 8 and Figure 9 In the planar inverted F antenna shown, the antenna unit 1 is connected to the antenna ground 2 through a metal sheet 202 , and a coaxial cable probe...

Embodiment 3

[0073] Embodiment 3: Terminal Diversity Antenna with Two Antenna Units Arranged Between the Panel Back of the Terminal Body and the Cabinet and Between the Screen Back of the Flip Cover and the Cabinet

[0074] Figure 5 It is a top view of the layout of the terminal diversity antenna as the third embodiment of the present invention, which has two antenna units arranged between the panel back of the terminal body and the casing and between the screen back of the flip cover and the casing , Figure 6 is the side view of the diversity antenna, where 1 is the antenna unit, 2 is the antenna ground corresponding to antenna unit 1, 3 is the body of the wireless communication terminal, 4 is the flip cover of the wireless communication terminal, and 5 is the gap between the body and the flip cover. Hinge (or shaft).

[0075] All antenna units 1 in the present embodiment adopt such as Figure 8 and Figure 9 The planar inverted-F antenna shown. The antenna unit 1 is connected to t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The disclosed antenna assembly is composed of N pieces (N is larger than or equal to 1) of antenna unit and M pieces (M is larger than or equal to 1) of ground of antenna. K pieces (K larger than zero and smaller than N) of antenna unit are positioned on the ground of antenna between main body and case of wireless communication terminal. Other (N-K) pieces of antenna unit are positioned on the ground of antenna between back of screen of turnable cover and case of wireless communication terminal. Through feeder apparatus, N pieces of antenna unit are connected to relevant transmitter or receiver. Features are: low spatial correlation, no radiation injury, low cost and easy of manufacturing. The invention can be widely applied for wireless communication for obtaining space diversity, angle diversity or polarization diversity of radio wave propagation, or in use for transmitting or receiving time-space coding or multiple inputs and outputs wireless communication system.

Description

technical field [0001] The invention belongs to the technical field of wireless communication diversity antennas, in particular to the wireless communication terminal diversity antenna technology. Background technique [0002] With the rapid development of wireless communication, the number of users is increasing day by day, and the data service is growing continuously. The wireless communication system of single-antenna transceiver is facing severe capacity bottleneck test. It is necessary to further improve the capacity and quality of the current wireless communication system, and seek new Technical solutions. Multiple transmission and multiple reception (MIMO) technology is a new wireless communication technology that utilizes multiple transmitting and multiple receiving antennas. Its transmitted data stream is separated into multiple sub-data streams, which are transmitted simultaneously at the same frequency through different antennas after modulation. Through the scat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/04H01Q1/24H01Q13/08
Inventor 李忻聂在平
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA