Abstract: Disclosed here are systems and methods which enable high-bandwidth communication between a mobile device and an accessory. The high-bandwidth communication uses electromagnetic waves in the extremely high frequency range between 30 GHz and 300 GHz inclusive, also known as millimeter waves. The millimeter waves travel through at least the chassis of the accessory and the chassis of the mobile device without significant scattering and attenuation. The properties of the materials through which the millimeter waves travel determine the attenuation of the millimeter waves. Disclosed here are various materials, and their thicknesses, which form a transmission stack through which the millimeter waves can travel unimpeded. In effect, the transmission stack acts as a dielectric member which facilitates the transmission of the millimeter waves, while attenuating transmission of waves outside of the extremely high frequency range.

Abstract: Various embodiments include a device that implements a high bandwidth wireless data interface for communication between the device and a device accessory. The device can include an external shell and a display (e.g., a touchscreen). In some embodiments, the external shell and the display together hermetically seal various other components of the device. In various embodiments, the device includes an attachment mechanism, an alignment mechanism (e.g., for magnetic alignment between a device and a device accessory), a wireless data transceiver, and a wired or wireless energy source (e.g., for sharing power between the device and the device accessory). The wireless data transceiver can transmit data at extremely high electromagnetic frequencies between the device in the device accessory.

Abstract: Disclosed here are systems and methods which enable high-bandwidth communication between a mobile device and an accessory. The high-bandwidth communication uses electromagnetic waves in the extremely high frequency range between 30 GHz and 300 GHz inclusive, also known as millimeter waves. The millimeter waves travel through at least the chassis of the accessory and the chassis of the mobile device without significant scattering and attenuation. The properties of the materials through which the millimeter waves travel determine the attenuation of the millimeter waves. Disclosed here are various materials, and their thicknesses, which form a transmission stack through which the millimeter waves can travel unimpeded. In effect, the transmission stack acts as a dielectric member which facilitates the transmission of the millimeter waves, while attenuating transmission of waves outside of the extremely high frequency range.

Abstract: A handheld electronic device including a plurality of electronic components and a channel forming a cavity extending continuously across the handheld electronic device to enable an airflow through the handheld electronic device to an external environment. The handheld electronic device includes an inlet of the channel cavity configured to accept air from the external environment and an outlet of the channel cavity configured to expel heated air to the external environment when the handheld electronic device is oriented such that the airflow moves by natural convection from the inlet toward the outlet.

Abstract: Various embodiments include a device that implements a high bandwidth wireless data interface for communication between the device and a device accessory. The device can include an external shell and a display (e.g., a touchscreen). In some embodiments, the external shell and the display together hermetically seal various other components of the device. In various embodiments, the device includes an attachment mechanism, an alignment mechanism (e.g., for magnetic alignment between a device and a device accessory), a wireless data transceiver, and a wired or wireless energy source (e.g., for sharing power between the device and the device accessory). The wireless data transceiver can transmit data at extremely high electromagnetic frequencies between the device in the device accessory.

Abstract: Various embodiments include a device that implements a high bandwidth wireless data interface for communication between the device and a device accessory. The device can include an external shell and a display (e.g., a touchscreen). In some embodiments, the external shell and the display together hermetically seal various other components of the device. In various embodiments, the device includes an attachment mechanism, an alignment mechanism (e.g., for magnetic alignment between a device and a device accessory), a wireless data transceiver, and a wired or wireless energy source (e.g., for sharing power between the device and the device accessory). The wireless data transceiver can transmit data at extremely high electromagnetic frequencies between the device in the device accessory.