Antenna system array for low earth orbit satellite communication and wireless communication device using the same

Patent metadata

Field	Value
Publication number	US-2023128186-A1
Application number	US-202217686670-A
Country	US
Kind code	A1
Filing date	Mar 4, 2022
Priority date	Oct 21, 2021
Publication date	Apr 27, 2023
Grant date	—

Abstract

An antenna system for improved satellite communication with a ground-based terminal device includes a first antenna, a feeding point, and a phase modulation unit. The first antenna is on a surface of a back cover of the terminal device, and the first antenna comprises a plurality of radiation units in an array. The feeding point feeds power and signals to the first antenna. The phase modulation unit can adjust the transmission phase of the different radiation units within the first antenna. The present disclosure also provides a wireless terminal.

First claim

What is claimed is:

1 . An antenna system applicable to a wireless communication device, the antenna system comprising:
a first antenna configured to communicate with a low earth orbit satellite in a first frequency band and arranged on a surface of a back cover of the wireless communication device, the first antenna comprising a plurality of radiation units arranged in an array on the back cover; a feeding point electrically connected to the first antenna and configured to feed a current to the first antenna; and a phase modulation unit electrically connected to the feeding point and configured to adjust a phase of the first antenna.

2 . The antenna system according to claim 1 , further comprising a second antenna operating in a second frequency band, the second frequency band being different to the first frequency band.

3 . The antenna system according to claim 2 , wherein the second frequency band operates in a 4G communication frequency band or a 5G communication frequency band.

4 . The antenna system according to claim 2 , wherein the second antenna is a frame antenna or a packaged antenna on the wireless communication device.

5 . The antenna system according to claim 2 , further comprising a multiplexer, the multiplexer electrically connected to the phase modulation unit and the second antenna, and the multiplexer configured to switch to the first antenna or the second antenna to generate a first radiation frequency band signal by exciting a first working mode through the first antenna and to generate a second radiation frequency band signal by exciting a second working mode through the second antenna.

6 . The antenna system according to claim 1 , wherein a material of the back cover is insulating material, the radiation unit is a radiation patch, and the radiation patch is disposed on the surface of the back cover.

7 . The antenna system according to claim 1 , wherein a material of the back cover is a conductive material, the back cover defines a slot or a radiation hole, and the slot or the radiation hole constitutes the radiation unit.

8 . The antenna system according to claim 1 , further comprising a beam tracking module, the beam tracking module configured to track a beam transmitted by the low earth orbit satellite through the first antenna, determining an optimal beam according to the beam tracked by the beam tracking module and adjusting a direction of a transmitting beam or a direction of a receiving beam of the first antenna to a direction of the optimal beam.

9 . The antenna system according to claim 8 , wherein the beam tracking module is electrically connected to the phase modulation unit, the beam tracking module is configured to output a control signal to the phase modulation unit according to the optimal beam determined, and adjust the phase of the first antenna through the phase modulation unit.

10 . A wireless communication device comprising:
a back cover; an antenna system comprising:
a first antenna configured to communicate with a low earth orbit satellite and arranged on a surface of the back cover; the first antenna comprising a plurality of radiation units arranged in an array on the back cover;
a feeding point electrically connected to the first antenna and configured to feed a current to the first antenna; and
a phase modulation unit electrically connected to the feeding point, and configured to adjust the phase of the first antenna.

11 . The wireless communication device according to claim 10 , further comprising a second antenna operating in a second frequency band, the second frequency band being different to the first frequency band.

12 . The wireless communication device according to claim 11 , wherein the second frequency band operates in 4G communication frequency band or 5G communication frequency band.

13 . The wireless communication device according to claim 11 , wherein the second antenna is a frame antenna or a packaged antenna on the wireless communication device.

14 . The wireless communication device according to claim 11 , further comprising a multiplexer, the multiplexer electrically connected to the phase modulation unit and the second antenna, and the multiplexer configured to switch to the first antenna or the second antenna, to generate a first radiation frequency band signal by exciting a first working mode through the first antenna, and to generate a second radiation frequency band signal by exciting a second working mode through the second antenna.

15 . The wireless communication device according to claim 10 , wherein a material of the back cover is insulating material, the radiation unit is a radiation patch, and the radiation patch is disposed on the surface of the back cover.

16 . The wireless communication device according to claim 1 , wherein a material of the back cover is a conductive material, the back cover defines a slot or a radiation hole, and the slot or the radiation hole constitutes the radiation unit.

17 . The wireless communication device according to claim 1 , further comprising a beam tracking module, the beam tracking module configured to track a beam transmitted by the low earth orbit satellite through the first antenna, determining an optimal beam according to the beam tracked and by the beam tracking module, and adjusting a direction of a transmitting beam or a direction of a receiving beam of the first antenna to a direction of the optimal beam.

18 . The wireless communication device according to claim 17 , wherein the beam tracking module is electrically connected to the phase modulation unit, the beam tracking module is configured to output a control signal to the phase modulation unit according to the optimal beam determined, and adjust the phase of the first antenna through the phase modulation unit.

Assignees

• Chiun Mai Communication Systems Inc

Inventors

• Chou Ming-Yu
• Liang Chia-Ming

Classifications

• H04B7/195 Primary

  Non-synchronous stations · CPC title

• H04B1/0064

  with separate antennas for the more than one band (H04B1/0053 takes precedence) · CPC title

• H04B7/18513 Primary

  Transmission in a satellite or space-based system · CPC title

• Y02D30/70

  in wireless communication networks · CPC title

• H01Q3/34

  by electrical means (active lenses or reflecting arrays H01Q3/46) · CPC title