# US 10,312,575 B2 · Wearable device antennas > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,312,575 B2 - Document ID: US10312575B2 - Status: Granted - Kind: B2 - Application number: 15/300,932 - Filed: 2015-03-31 - Published: 2017-01-26 - Granted: 2019-06-04 - Earliest claimed: 2014-03-31 - Assignees: Galtronics USA, Inc. - Applicants: Galtronics Corporation Ltd. - Inventors: Bumjin (Martin) Kim; Sunkil (Edgar) Choi; Jae Hun (Daniel) Gim; Sangyup (Andrea) Kim; Suhyun (Edwin) Kim; Jaeyun (Louis) Hwang - Web page: https://patentgrep.com/patent/US10312575B2 ## CPC - H01Q 1/273: {Adaptation for carrying or wearing by persons or animals} - G02C 11/10: {Electronic devices other than hearing aids} - H01Q 1/2291: {used in Bluetooth® or Wi-Fi® devices of Wireless Local Area Networks [WLAN] (H01Q1/241 takes precedence; WLAN in general H04W)} - H01Q 1/44: using equipment having another main function to serve additionally as an antenna {, e.g. means for giving an antenna an aesthetic aspect}(H01Q1/27 - H01Q1/34 take precedence) - H01Q 5/378: Combination of fed elements with parasitic elements - H01Q 7/00: Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop - H01Q 9/42: with folded element, the folded parts being spaced apart a small fraction of the operating wavelength - H04B 1/385: {Transceivers carried on the body, e.g. in helmets} - G04R 60/06: Antennas attached to or integrated in clock or watch bodies - H04B 2001/3866: {carried on the head} - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) - G02C: SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES (trial frames for testing the eyes A61B3/04; goggles or eyeshields not having the same features as spectacles A61F9/00) - H04B: TRANSMISSION - G04R: RADIO-CONTROLLED TIME-PIECES ## Abstract Antennas for wearable wireless devices are provided. A wearable wireless device antenna may include a primary radiating element configured to form at least a portion of a wearable device body and a secondary radiating element configured to couple to the primary radiating element. Each of the primary and secondary radiating elements may be configured to radiate in differing frequency ranges. Wearable device antennas as provided may further be configured as directional antennas. ## Claims ### Claim 1 A watch, comprising: a primary radiating element configured to form at least a portion of an external frame of the watch; a first coupling element galvanically coupled to the primary radiating element, the first coupling element having a first length parallel to at least a portion of the primary radiating element; a second coupling element galvanically coupled to the primary radiating element, the second coupling element having a second length different that the first length parallel to at least a portion of the primary radiating element; a secondary radiating element configured to couple to the first coupling element and the second coupling element; and a feed element, configured to feed a radiofrequency signal to the secondary radiating element, and wherein the primary radiating element is configured to radiate in a first frequency range when the secondary radiating element receives a first radiofrequency signal in the first frequency range from the feed line and couples the first radiofrequency signal to the primary radiating element, and the secondary radiating element is configured to radiate in a second frequency range when receiving a second radiofrequency signal in the second frequency range. ### Claim 2 (depends on 1) The watch of claim 1, wherein the secondary radiating element includes a folded monopole element. ### Claim 3 (depends on 1) The watch of claim 1, wherein the primary radiating element is configured to form a closed loop portion of the external frame. ### Claim 4 (depends on 1) The watch of claim 1, wherein the primary radiating element is configured for directional radiation when activated by coupling with the secondary radiating element. ### Claim 5 A watch, comprising: a body having an external band; at least one conductive element disposed on the external band and configured to form at least a portion of a primary radiating element; a first coupling element galvanically coupled to the primary radiating element, the first coupling element having a first length parallel to at least a portion of the primary radiating element; a second coupling element galvanically coupled to the primary radiating element, the second coupling element having a second length different that the first length parallel to at least a portion of the primary radiating element; a secondary radiating element configured to couple with the first and second coupling elements; and a feed line disposed to supply a radiofrequency signal to the secondary radiating element, wherein the primary radiating element is configured to radiate in a first frequency range when the secondary radiating element receives a first radiofrequency signal in the first frequency range from the feed line and couples the first radiofrequency signal to the primary radiating element, and the secondary radiating element is configured to radiate in a second frequency range when receiving a second radiofrequency signal in the second frequency range. ### Claim 6 (depends on 5) The watch of claim 5, wherein the secondary radiating element includes a folded monopole element. ### Claim 7 (depends on 5) The watch of claim 5, wherein the primary radiating element is configured for directional radiation when activated by coupling with the secondary radiating element.