Antenna for electronic device
First Claim
Patent Images
1. A communication system of an electronic device to be worn on human skin, the communication system comprising:
- a radio receiver arranged within an electrically conductive enclosure and configured to receive a communication signal at a predetermined target frequency;
electrically coupled to the radio receiver, an antenna conductor arranged outside of the electrically conductive enclosure and configured geometrically for resonance at an unmatched frequency above the predetermined target frequency, the antenna conductor being folded into multiple parallel portions; and
a shunting capacitor electrically coupled to the antenna conductor, the shunting capacitor being of such capacitance as to bring the antenna conductor into resonance at the predetermined target frequency.
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Abstract
Embodiments are disclosed for an antenna system comprising an over-resonant antenna conductor and a radio receiver electrically coupled to the over-resonant antenna conductor. The antenna system further comprises a capacitor electrically coupled to the over-resonant antenna conductor and sized to match the antenna conductor to a selected frequency.
13 Citations
20 Claims
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1. A communication system of an electronic device to be worn on human skin, the communication system comprising:
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a radio receiver arranged within an electrically conductive enclosure and configured to receive a communication signal at a predetermined target frequency; electrically coupled to the radio receiver, an antenna conductor arranged outside of the electrically conductive enclosure and configured geometrically for resonance at an unmatched frequency above the predetermined target frequency, the antenna conductor being folded into multiple parallel portions; and a shunting capacitor electrically coupled to the antenna conductor, the shunting capacitor being of such capacitance as to bring the antenna conductor into resonance at the predetermined target frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A wearable electronic device to be worn on human skin, the electronic device comprising:
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a display-carrier module forming an electrically conductive enclosure housing a compute system and a display device; a flexible wrist band coupled to the display-carrier module; a communication system including a radio receiver arranged within the electrically conductive enclosure and configured to receive a communication signal at a predetermined target frequency; electrically coupled to the radio receiver, an antenna conductor arranged outside of the electrically conductive enclosure at flexible portions of the flexible wrist band and configured geometrically for resonance at an unmatched frequency above the predetermined target frequency, the antenna conductor being folded into multiple parallel portions; and a shunting capacitor electrically coupled to the antenna conductor, the shunting capacitor being of such capacitance as to bring the antenna conductor into resonance at the predetermined target frequency. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A communication system of an electronic device to be worn on human skin, the communication system comprising:
- a radio receiver arranged within an electrically conductive enclosure and configured to receive a communication signal at a predetermined target frequency;
electrically coupled to the radio receiver, an antenna conductor arranged outside of the electrically conductive enclosure and configured geometrically for resonance at an unmatched frequency above the predetermined target frequency, the antenna conductor being formed with plural parallel portions on a flexible printed-circuit assembly attached to a metal armature through a plastic antenna substrate, the plastic antenna substrate maintaining a two-millimeter separation between the metal armature and the antenna conductor; and
a shunting capacitor electrically coupled to the antenna conductor, the shunting capacitor being of such capacitance as to bring the antenna conductor into resonance at the predetermined target frequency. - View Dependent Claims (20)
- a radio receiver arranged within an electrically conductive enclosure and configured to receive a communication signal at a predetermined target frequency;
Specification