Granted Patent B2

US 12,725,940 · App. 18/096,483 · Granted Sep 1, 2026

Inventors: Tzu-Hao Liao (Hsinchu City, TW); Shen-Yi Liao (Hsinchu City, TW)

Assignee: MediaTek Inc.

H01Q21/28H04B1/0483H04B7/0413

Abstract

Claims (76)

1 . A device, configured to facilitate wireless communications in a dual-band dual-concurrent (DBDC) application and a multiple-input-multiple-output (MIMO) application, comprising:

a front-end circuit, configured to support transmission at a first frequency band and at a second frequency band, comprising:

a frequency splitter;

at least two diplexers;

a filter;

at least three antennas,

wherein the frequency splitter is configured to divide the Wi-Fi 5GHz ~ 6GHz band in a range of 5180~7115 MHz into the first frequency band in a range of 5180~5905 MHz and the second frequency band in a range of 5955~7115 MHz,

wherein the frequency splitter is further configured to output the first frequency band to one of the at least three antennas via a first circuit path and to output the second frequency band to another one of the at least three antennas via a second circuit path,

wherein the front-end circuit further comprises a Wi-Fi processor having a plurality of radio frequency (RF) ports with one of the plurality of RF ports configured with a Wi-Fi 5 GHz operating band and connecting to the frequency splitter,

wherein the frequency splitter is coupled to a first diplexer of the at least two diplexers via the first circuit path with the first diplexer connected to one of the at least three antennas,

wherein the frequency splitter is further coupled to:

a second diplexer of the at least two diplexers via the second circuit path with the second diplexer connected to another one of the at least three antennas; or

the filter via the second circuit path with the filter connected to the another one of the at least three antennas.

2 . The device of claim 1 , wherein the front-end circuit comprises three antennas, three diplexers including the first diplexer, and the Wi-Fi processor having five RF ports comprising:

one Bluetooth RF port;

first and second Wi-Fi G-band RF ports at 2412~2484 MHz; and

first and second Wi-Fi 5 GHz~6 GHz band RF ports at 5180~7115 MHz.

3 . The device of claim 2 , wherein an order of physical locations of the five RF ports from one side of the front-end circuit to an opposite side of the front-end circuit comprises the one Bluetooth RF port, the first Wi-Fi 5 GHz~6 GHz band RF port, the first Wi-Fi G-band RF port, the second Wi-Fi 5 GHz~6 GHz band RF port, and the second Wi-Fi G-band RF port, wherein a location of the first Wi-Fi 5 GHz~6 GHz band RF port is exchangeable with a location of the second Wi-Fi 5 GHz~6 GHz band RF port, and wherein a location of the one Bluetooth RF port is exchangeable with a location of either of the first or the second Wi-Fi G-band RF port.

4 . The device of claim 3 , wherein the front-end circuit comprises a first antenna (Ant 1 ), a second antenna (Ant 2 ) and a third antenna (Ant 3 ), and wherein:

in the DBDC application,

for a first type of DBDC, the first antenna is used for the first frequency band and the second antenna is used for the second frequency band, and,

for a second type of DBDC, the second antenna is used for the first frequency band and the third antenna is used for the second frequency band; and

in the MIMO application, the first antenna and the second antenna are used for Wi-Fi 2.4 GHz MIMO, the second antenna and the third antenna are used for a high-frequency band MIMO at 5955~7115 MHz, and the first antenna and the second antenna are used for a low-frequency band MIMO at 5180~5905 MHz.

5 . The device of claim 3 , wherein the front-end circuit comprises a first antenna (Ant 1 ), a second antenna (Ant 2 ) and a third antenna (Ant 3 ), and wherein:

in the DBDC application, for a first type of DBDC, the first antenna is used for the first frequency band and the third antenna is used for the second frequency band; and

in the MIMO application, the first antenna and the second antenna are used for Wi-Fi 2.4 GHz MIMO, the second antenna and the third antenna are used for a high-frequency band MIMO at 5955~7115 MHz, and the first antenna and the second antenna are used for a low-frequency band MIMO at 5180~5905 MHz.

6 . The device of claim 3 , wherein the front-end circuit comprises a first antenna (Ant 1 ), a second antenna (Ant 2 ) and a third antenna (Ant 3 ), and wherein:

in the DBDC application, the third antenna is used for the second frequency band and the second antenna is used for the first frequency band; and

in the MIMO application, the first antenna and the second antenna are used for Wi-Fi 2.4 GHz MIMO, the first antenna and the third antenna are used for a high-frequency band MIMO at 5955~7115 MHz, and the first antenna and the second antenna are used for a low-frequency band MIMO at 5180~5905 MHz.

7 . The device of claim 1 , wherein the front-end circuit is configured with four RF ports comprising:

first and second Wi-Fi G-band RF ports at 2412~2484 MHz; and

first and second Wi-Fi 5 GHz~6 GHz band RF ports at 5180~7115 MHz,

wherein the frequency splitter is coupled to the filter via the second circuit path.

8 . The device of claim 7 , wherein an order of physical locations of the four RF ports from one side of the front-end circuit to an opposite side of the front-end circuit comprises the first Wi-Fi G-band RF port, the first Wi-Fi 5 GHz~6 GHz band RF port, the second Wi-Fi G-band RF port, and the second Wi-Fi 5 GHz~6 GHz band RF port, and wherein a location of the first Wi-Fi 5 GHz~6 GHz band RF port is exchangeable with a location of the second Wi-Fi 5 GHz~6 GHz band RF port.

9 . The device of claim 8 , wherein the front-end circuit comprises a first antenna (Ant 1 ), a second antenna (Ant 2 ) and a third antenna (Ant 3 ), and wherein:

in the DBDC application, the second antenna, via the filter, is used for the first frequency band and the first antenna is used for the second frequency band; and

in the MIMO application, the first antenna and the third antenna are used for Wi-Fi 2.4 GHz MIMO, the first antenna and the third antenna are used for a high-frequency band MIMO at 5955~7115 MHz, and the second antenna and the third antenna are used for a low-frequency band MIMO at 5180~5905 MHz.

10 . The device of claim 8 , wherein the front-end circuit comprises a first antenna (Ant 1 ), a second antenna (Ant 2 ) and a third antenna (Ant 3 ), and wherein:

in the DBDC application, the first antenna is used for the first frequency band and the third antenna, via the filter, is used for the second frequency band; and

in the MIMO application, the first antenna and the second antenna are used for Wi-Fi 2.4 GHz MIMO, the second antenna and the third antenna are used for a high-frequency band MIMO at 5955~7115 MHz, and the first antenna and the second antenna are used for a low-frequency band MIMO at 5180~5905 MHz.

11 . The device of claim 1 , wherein the front-end circuit is configured with five RF ports comprising:

one Bluetooth RF port;

first and second Wi-Fi G-band RF ports at 2412~2484 MHz; and

first and second Wi-Fi 5 GHz~6 GHz band RF ports at 5180~7115 MHz,

wherein the frequency splitter is coupled to the DPDT switch via the second circuit path.

12 . The device of claim 11 , wherein an order of physical locations of the five RF ports from one side of the front-end circuit to an opposite side of the front-end circuit comprises the one Bluetooth RF port, the first Wi-Fi 5 GHz~6 GHz band RF port, the first Wi-Fi G-band RF port, the second Wi-Fi 5 GHz~6 GHz band RF port, and the second Wi-Fi G-band RF port, wherein a location of the first Wi-Fi 5 GHz~6 GHz band RF port is exchangeable with a location of the second Wi-Fi 5 GHz~6 GHz band RF port, and wherein a location of the one Bluetooth RF port is exchangeable with a location of either of the first or the second Wi-Fi G-band RF port.

13 . The device of claim 12 , wherein the front-end circuit comprises a first antenna (Ant 1 ), a second antenna (Ant 2 ) and a third antenna (Ant 3 ), and wherein:

in the DBDC application, the second antenna is used for the first frequency band and the first antenna, via the DPDT switch, is used for the second frequency band; and

in the MIMO application, the first antenna and the second antenna are used for Wi-Fi 2.4 GHz MIMO, the first antenna and the third antenna are used for a high-frequency band MIMO at 5955~7115 MHz, and the second antenna and the third antenna are used for a low-frequency band MIMO at 5180~5905 MHz.

14 . The device of claim 12 , wherein the front-end circuit comprises a first antenna (Ant 1 ), a second antenna (Ant 2 ) and a third antenna (Ant 3 ), and wherein:

in the DBDC application, the first antenna, via the DPDT switch, is used for the first frequency band and the third antenna is used for the second frequency band; and

in the MIMO application, the first antenna and the second antenna are used for Wi-Fi 2.4 GHz MIMO, the second antenna and the third antenna are used for a high-frequency band MIMO at 5955~7115 MHz, and the first antenna and the second antenna are used for a low-frequency band MIMO at 5180~5905 MHz.

15 . The device of claim 12 , wherein the front-end circuit comprises a first antenna (Ant 1 ), a second antenna (Ant 2 ) and a third antenna (Ant 3 ), and wherein:

in the DBDC application, the third antenna is used for the first frequency band and the first antenna, via the DPDT switch, is used for the second frequency band; and

in the MIMO application, the first antenna and the second antenna are used for Wi-Fi 2.4 GHz MIMO, the first antenna and the second antenna are used for a high-frequency band MIMO at 5955~7115 MHz, and the second antenna and the third antenna are used for a low-frequency band MIMO at 5180~5905 MHz.

16 . The device of claim 12 , wherein the front-end circuit comprises a first antenna (Ant 1 ), a second antenna (Ant 2 ) and a third antenna (Ant 3 ), and wherein:

in the DBDC application, the first antenna, via the DPDT switch, is used for the first frequency band and the second antenna is used for the second frequency band; and

in the MIMO application, the first antenna and the second antenna are used for Wi-Fi 2.4 GHz MIMO, the second antenna and the third antenna are used for a high-frequency band MIMO at 5955~7115 MHz, and the first antenna and the third antenna are used for a low-frequency band MIMO at 5180~5905 MHz.

17 . The device of claim 1 , wherein the front-end circuit is configured with four RF ports comprising:

first and second Wi-Fi G-band RF ports at 2412~2484 MHz; and

first and second Wi-Fi 5 GHz~6 GHz band RF ports at 5180~7115 MHz,

wherein the frequency splitter is coupled to the DPDT switch via the second circuit path.

18 . The device of claim 17 , wherein an order of physical locations of the four RF ports from one side of the front-end circuit to an opposite side of the front-end circuit comprises the first Wi-Fi G-band RF port, the first Wi-Fi 5 GHz~6 GHz band RF port, the second Wi-Fi G-band RF port, and the second Wi-Fi 5 GHz~6 GHz band RF port, and wherein a location of the first Wi-Fi 5 GHz~6 GHz band RF port is exchangeable with a location of the second Wi-Fi 5 GHz~6 GHz band RF port.

19 . A device, configured to facilitate wireless communications in a dual- band dual-concurrent (DBDC) application and a multiple-input-multiple-output (MIMO) application, comprising:

a front-end circuit, configured to support transmission at a first frequency band and at a second frequency band, comprising:

a frequency splitter;

at least two diplexers;

a double-pole-double-throw (DPDT) switch; and

at least three antennas,

wherein the frequency splitter is configured to divide the Wi-Fi 5GHz~6GHz band in a range of 5180~7115 MHz into the first frequency band in a range of 5180~5905 MHz and the second frequency band in a range of 5955~7115 MHz,

wherein the frequency splitter is further configured to output the first frequency band to one of the at least three antennas via a first circuit path and to output the second frequency band to another one of the at least three antennas via a second circuit path,

wherein the front-end circuit further comprises a Wi-Fi processor having a plurality of radio frequency (RF) ports with one of the plurality of RF ports configured with a Wi-Fi 5GHz operating band and connecting to the frequency splitter,

wherein the frequency splitter is coupled to a first diplexer of the at least two diplexers via the first circuit path with the first diplexer connected to one of the at least three antennas,

wherein the frequency splitter is further coupled to:

a second diplexer of the at least two diplexers via the second circuit path with the second diplexer connected to another one of the at least three antennas; or

the DPDT switch with the DPDT switch connected to the second diplexer which is connected to the another one of the at least three antennas.

Assignments (1)

Continuity (3)

References Cited (15)