# US 2014/0198012 A1 · Mobile device with two antennas and antenna switch modules > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0198012 A1 - Document ID: US20140198012A1 - Status: Published application - Kind: A1 - Application number: 13/951,380 - Filed: 2013-07-25 - Published: 2014-07-17 - Earliest claimed: 2013-01-14 - Assignees: Acer Incorporated - Applicants: Acer Incorporated - Inventors: Kuo-Hua TSENG; Chih-Hua CHANG; Shao-Yu HUANG - Web page: https://patentgrep.com/patent/US20140198012A1 ## CPC - H01Q 21/28: Combinations of substantially independent non-interacting antenna units or systems {(multiple beam H01Q25/00)} - H01Q 1/243: {with built-in antennas} - H01Q 9/42: with folded element, the folded parts being spaced apart a small fraction of the operating wavelength - H01Q 21/30: Combinations of separate antenna units operating in different wavebands and connected to a common feeder system - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract A mobile device includes a system circuit board, a ground element, a communication module, a first antenna, a second antenna, a first ASM (Antenna Switch Module), and a second ASM. The first antenna is configured to receive or transmit a first signal in a first frequency band. The second antenna is configured to receive or transmit a second signal in a second frequency band. The second frequency band is different from the first frequency band. The first ASM is coupled between the first antenna and the communication module, and is configured to separate frequencies of the first signal. The second ASM is coupled between the second antenna and the communication module, and is configured to separate frequencies of the second signal. ## Claims ### Claim 1 A mobile device, comprising: a system circuit board; a ground element, disposed on the system circuit board; a communication module; a first antenna, configured to receive or transmit a first signal in a first frequency band; a second antenna, configured to receive or transmit a second signal in a second frequency band, wherein the second frequency band is different from the first frequency band; a first ASM (Antenna Switch Module), coupled between the communication module and the first antenna, and configured to separate frequencies of the first signal; and a second ASM, coupled between the communication module and the second antenna, and configured to separate frequencies of the second signal, wherein the first antenna has a first projection on the system circuit board, and the second antenna has a second projection on the system circuit board, and neither the first projection nor the second projection overlaps with the ground element. ### Claim 2 (depends on 1) The mobile device as claimed in claim 1, wherein the first antenna comprises: a first feeding element, coupled through the first ASM to the communication module; a first radiation element, separated from the first feeding element, wherein one end of the first radiation element is coupled to the ground element, and a first coupling gap is formed between the other end of the first radiation element and the first feeding element; and a first extension element, coupled to the first radiation element. ### Claim 3 (depends on 2) The mobile device as claimed in claim 2, wherein the first radiation element comprises a first portion, a second portion, and a third portion, wherein the first portion substantially has a U-shape, the second portion substantially has an inverted S-shape, the third portion substantially has an I-shape, and the first portion is coupled through the second portion to the third portion. ### Claim 4 (depends on 3) The mobile device as claimed in claim 3, wherein the first extension element is coupled to an edge of the first portion and an edge of the second portion, and wherein the first radiation element and the first extension element are substantially disposed on two perpendicular planes, respectively. ### Claim 5 (depends on 1) The mobile device as claimed in claim 1, wherein the second antenna comprises: a second feeding element, coupled through the second ASM to the communication module; an inductor; a second radiation element, separated from the second feeding element, wherein one end of the second radiation element is coupled through the inductor to the ground element, and a second coupling gap is formed between the other end of the second radiation element and the second feeding element; and a second extension element, coupled to the second radiation element. ### Claim 6 (depends on 5) The mobile device as claimed in claim 5, wherein the second radiation element comprises a fourth portion, a fifth portion, and a sixth portion, wherein the fourth portion substantially has a U-shape, the fifth portion substantially has an S-shape, the sixth portion substantially has an I-shape, and the fourth portion is coupled through the fifth portion to the sixth portion. ### Claim 7 (depends on 6) The mobile device as claimed in claim 6, wherein the second extension element is coupled to an edge of the fourth portion and an edge of the fifth portion, and wherein the second radiation element and the second extension element are substantially disposed on two perpendicular planes, respectively. ### Claim 8 (depends on 1) The mobile device as claimed in claim 1, further comprising: a third antenna, configured to receive or transmit a third signal in a third frequency band, wherein the third frequency band is different from the first frequency band and the second frequency band; and a third ASM, coupled between the communication module and the third antenna, and configured to separate frequencies of the third signal, wherein the third antenna has a third projection on the system circuit board, and the third projection does not overlap with the ground element. ### Claim 9 A mobile device, comprising: a system circuit board; a ground element, disposed on the system circuit board; a communication module; a first antenna, configured to receive or transmit a first signal in a first frequency band; a second antenna, configured to receive or transmit a second signal in a second frequency band, wherein the second frequency band is different from the first frequency band; and an ASM (Antenna Switch Module), wherein the first antenna and the second antenna are both coupled through the ASM to the communication module, and the ASM is configured to separate frequencies of the first signal and/or frequencies of the second signal, wherein the first antenna has a first projection on the system circuit board, and the second antenna has a second projection on the system circuit board, and neither the first projection nor the second projection overlaps with the ground element. ### Claim 10 (depends on 9) The mobile device as claimed in claim 9, further comprising: a switch, selectively coupling either the first antenna or the second antenna to the ASM according to a control signal from the communication module.