Abstract: System and method embodiments are provided for a broadband switchable antenna. The embodiments enable an easily tunable, temporally switchable antenna with good low- and high-band performance with controlled high impedance loci that easily coexists with other wireless device components. In an embodiment, a broadband switchable antenna includes an antenna feed; a high-band antenna arm comprising a first end electrically coupled to an antenna feed and a second end electrically coupled to ground; a switch coupled to the antenna feed at a position proximate to the first end of the high-band antenna arm; and a low-band antenna arm comprising a first end electrically coupled to the switch, wherein the antenna is configured to operate in a high-band mode when the switch is open and to operate in a low-band mode when the switch is closed.

Abstract: An electronic device includes a housing having a first panel connected to a second panel movable between folded and unfolded configurations. A first antenna is located adjacent to the first panel and a second antenna is located adjacent to the second panel. The second antenna is activated when the housing is in an unfolded configuration and is deactivated when the housing is in a folded configuration.

Abstract: As described herein, the activity of Treg cells can be mediated by cathepsin inhibition, e.g., in tumor environments, cathepsin inhibition results in increased Treg anti-tumor activity, while in non-tumor environments, cathepsin inhibition results in increased immunosuppressive activity. Accordingly, provided herein are methods of modulating Treg activity and methods of treating diseases (e.g., cancer or autoimmune diseases) by inhibiting cathepsins in Treg cells.

Abstract: An embodiment wireless communication device includes a circuit board and a cover having a back surface covering a portion of a first surface of the circuit board and an opening in the back surface. A top antenna is disposed within the cover and is electrically connected to the circuit board at a first feed point on a first edge of the circuit board. A secondary antenna disposed within the cover has a first antenna portion connected to the circuit board at a second feed point, and a second antenna portion of the second antenna extends laterally from a second edge of the circuit board over the first surface of the circuit board and between the back surface of the cover and the first surface of the circuit board such that at least a portion of the second antenna portion is exposed through the opening in the back surface.

Abstract: An antenna comprising a main arm comprising conductive material, wherein the main arm is connected to a signal feed, and a first coupling arm comprising conductive material, wherein the first coupling arm is electrically coupled to a ground, and wherein the first coupling arm is electrically coupled to the main arm across a first span of nonconductive material. Also disclosed is a mobile node (MN) comprising a signal feed, a ground, and an antenna comprising a main arm comprising conductive material, wherein the main arm is connected to the signal feed, and a first coupling arm comprising conductive material, wherein the first coupling arm is connected to the ground, and wherein the first coupling arm is electrically coupled to the main arm across a first span of nonconductive material.

Abstract: An apparatus and associated method are provided involving one or more registers configured to store a plurality of values including a first value corresponding with a first capacitance, and a second value corresponding with a second capacitance. Further included is a decoder configured to decode the values into corresponding capacitive settings. Also included is one or more capacitive elements in electrical communication with the decoder. Such one or more capacitive elements are configured to exhibit different capacitances, based on the capacitive settings. Also included is control circuitry in electrical communication with the decoder and the one or more registers. Such control circuitry is configured to control a transition of the capacitance of the one or more capacitive elements from the first capacitance to the second capacitance, by creating a plurality of additional values between the first value and the second value for being decoded by the decoder.

Abstract: A method for tuning an antenna comprising determining an operating frequency band of the antenna, and adjusting a capacitance of a tunable load according to the operating frequency band, wherein the tunable load is electromagnetically coupled to the antenna via a parasitic arm, and wherein the operating frequency band depends on the capacitance.

Abstract: A mobile device for determining a handling condition of the mobile device and a method of use thereof. One embodiment of the mobile device includes: at least one left capacitive proximity sensor disposed on a left side of the mobile device and operable to detect a hold condition, at least one right capacitive proximity sensor disposed on a right side of the mobile device and operable to detect a hold condition, an accelerometer disposed in the mobile device and operable to detect an orientation of the mobile device, an ambient light proximity sensor disposed in the mobile device and operable to detect a proximity of a user's head, and a processor operable to execute an application configured to gain access to and employ the hold condition, the orientation, and the proximity of the user's head to determine a handling condition.

Abstract: In one embodiment, a method includes receiving, by a first user equipment (UE) from a second UE, identity information and transmitting, by the first UE to a communications controller, the identity information. The method also includes receiving, by the first UE from the communications controller, a first packet after transmitting the identity information and transmitting, by the first UE to the second UE, the first packet in accordance with the identity information.

Abstract: A wearable wireless device is disclosed. In one embodiment the wearable wireless device includes a circuit board, a housing body housing the circuit board, the housing body having a front side and a back side, a display located at the front side of the housing body, a first antenna element electrically connected to the circuit board and located on the front side of the housing body and a second antenna element electrically connected to the circuit board and located on the front side of the housing body.

Abstract: Methods, apparatus and systems are provided that include NFC antennas for applications in wearable mobile communication devices. In one aspect, a wearable mobile communication device includes an electronics block, or electronics body, including a processing unit for near field communications; and an adjustable strap configured to retain the electronics block when worn by a wearer. The strap includes a conductive material connected to form a coil with at least one turn and separated by a non-conductive material that configured to fill a gap between turns of the coil. The coil is electrically connected to the electronics block and comprises a near field communication (NFC) antenna.

Abstract: A mobile device for determining a handling condition of the mobile device and a method of use thereof. One embodiment of the mobile device includes: at least one left capacitive proximity sensor disposed on a left side of the mobile device and operable to detect a hold condition, at least one right capacitive proximity sensor disposed on a right side of the mobile device and operable to detect a hold condition, an accelerometer disposed in the mobile device and operable to detect an orientation of the mobile device, an ambient light proximity sensor disposed in the mobile device and operable to detect a proximity of a user's head, and a processor operable to execute an application configured to gain access to and employ the hold condition, the orientation, and the proximity of the user's head to determine a handling condition.

Abstract: In one embodiment, a method includes receiving, by a first user equipment (UE) from a second UE, identity information and transmitting, by the first UE to a communications controller, the identity information. The method also includes receiving, by the first UE from the communications controller, a first packet after transmitting the identity information and transmitting, by the first UE to the second UE, the first packet in accordance with the identity information.

Abstract: A wearable wireless device is disclosed. In one embodiment the wearable wireless device includes a circuit board, a housing body housing the circuit board, the housing body having a front side and a back side, the back side configured to be closer to the user when worn than the front side, a first antenna element electrically connected to the circuit board and located at the front side of the housing body and a second antenna element electrically connected to the circuit board and located at the front side of the housing body.

Abstract: Disclosed herein are methods of detecting Plasmodium in a subject (for example, presence of Plasmodium parasite) by detecting the presence and/or amount of one or more metabolites in a sample from the subject. In some embodiments, the methods include detecting in the sample one or more metabolites listed in Table 1, Table 2, and/or Tables 5-8. The amount of the one or more metabolites in the sample is compared to the amount of the one or more metabolites in a control and presence of Plasmodium is determined if the amount of the one or more metabolites is different (for example statistically significantly increased or decreased) compared to the control.

Abstract: An antenna comprising a conductive base comprising a west edge, an east edge, a north edge, a south edge, and a center axis, a left slot of nonconductive material extending from the south edge toward the north edge and positioned between the west edge and the center axis, and a right slot of nonconductive material extending from the south edge toward the north edge and positioned between the east edge and the center axis.

Abstract: An apparatus for satisfying Specific Absorption Rate (SAR) compliance criteria including a first capacitance sensor, a second capacitance sensor, a memory, and a processor. The memory is configured to store pre-established proximity regions that include a free space region of proximity based on baseline capacitance measurements obtained from the sensors when no human body is proximate a wireless device and a first region of proximity based on initial capacitance measurements obtained from the sensors when the human body is spaced apart from the wireless device by a first predetermined separation distance. The processor is configured to instruct a radio frequency (RF) transmitter to operate at a first output power when subsequent capacitance measurements received from the sensors are within the free space region of proximity and at a second output power, less than the first output power when the subsequent capacitance measurements are within the first region of proximity.

Abstract: Methods, apparatus and systems are provided including a load-adaptive antenna for mobile communication devices. One aspect provides a method of using an antenna within a handheld wireless communication device. The method includes monitoring antenna performance using information received from a sensor within the device. When antenna performance drops below a programmable threshold, such as due to proximity or contact with a user, a signal from a processor is used to actuate a circuit component to change a location of a high impedance portion of the antenna to reduce the effects of the proximity or contact with the user, in various embodiments.

Abstract: An apparatus comprises a radio frequency (RF) antenna circuit; an antenna aperture tuning circuit; an antenna impedance measurement circuit; and a processor circuit electrically coupled to the tunable antenna aperture circuit and the impedance measurement circuit. The processor circuit is configured to: set the antenna aperture tuning circuit to an antenna aperture tuning state according to one or more parameters of an RF communication network; initiate an antenna impedance measurement; and change the antenna aperture tuning state to an antenna aperture tuning state indicated by the antenna impedance.

Abstract: It is possible to match the impedance of an antenna without directly measuring the phase. This is advantageous as it reduces the cost, and complexity, of wireless transceivers. In particular, the phase component of an antenna's reflection coefficient can be estimated based on return loss measurements. For example, a transceiver may measure an initial return loss of the antenna, adjust the impedance of at least one tunable element, and then measure one or more adjusted return losses of the antenna. The phase of the reflection coefficient can be estimated based on a difference between the initial return loss and the one or more adjusted return losses.