Abstract: Generally discussed herein are techniques, software, apparatuses, and systems configured for impedance matching. An impedance matching tuner can include a first tunable capacitor arranged in series with a radio frequency (RF) input, a second tunable capacitor arranged in shunt with the RF input, a third tunable capacitor and a first inductance device arranged in parallel with each other and in shunt with the RF input, and a fourth tunable capacitor and a second inductance device arranged in parallel with each other and in series with the RF input.

Abstract: Auto-tunable antenna devices and methods of using the same are described herein. One method for tuning an antenna of a device includes comparing a reference phase of a reference signal to a return phase of a return signal of the antenna and sending a correction signal to a tunable circuit element of the antenna in response to the reference phase being out of phase with the return phase.

Abstract: Generally discussed herein are techniques, software, apparatuses, and systems configured for tuning an antenna. In one or more embodiments, a system can include a monopole or dipole antenna, a hardware processor electrically coupled to the monopole or dipole antenna, an amplitude or power detector electrically coupled between the monopole or dipole antenna and the processor to receive signals reflected from the monopole or dipole antenna and determine an amplitude or power of the reflected signals, and a first impedance matching network electrically connected between a feed point of the monopole or dipole antenna and the detector, the first impedance matching network including a variable capacitor, the variable capacitor having a variable capacitance that is set by the hardware processor based on the amplitude or power of the reflected determined by the amplitude or power detector.

Abstract: Generally discussed herein are techniques, software, apparatuses, and systems configured for impedance matching. An impedance matching tuner can include a first tunable capacitor arranged in series with a radio frequency (RF) input, a second tunable capacitor arranged in shunt with the RF input, a third tunable capacitor and a first inductance device arranged in parallel with each other and in shunt with the RF input, and a fourth tunable capacitor and a second inductance device arranged in parallel with each other and in series with the RF input.

Abstract: Generally discussed herein are techniques, software, apparatuses, and systems configured for tuning an antenna. In one or more embodiments, a method can include sending, by processing circuitry, one or more signals to an antenna tuner to sweep the tuner through a plurality of tuner states, determining a plurality of power values, each power value corresponding to a signal received from an antenna and each power value corresponding to the tuner being in a state of the plurality of tuner states, and sending one or more signals to the tuner to set the tuner to a tuner state of the plurality of tuner states, the tuner state determined using the determined powers.

Abstract: Generally discussed herein are techniques, software, apparatuses, and systems configured for tuning an antenna. In one or more embodiments, a system can include a monopole or dipole antenna, a hardware processor electrically coupled to the monopole or dipole antenna, an amplitude or power detector electrically coupled between the monopole or dipole antenna and the processor to receive signals reflected from the monopole or dipole antenna and determine an amplitude or power of the reflected signals, and a first impedance matching network electrically connected between a feed point of the monopole or dipole antenna and the detector, the first impedance matching network including a variable capacitor, the variable capacitor having a variable capacitance that is set by the hardware processor based on the amplitude or power of the reflected determined by the amplitude or power detector.

Abstract: An integrated identification system including a housing, an active light beacon supported by the housing, an RF beacon supported by the housing, and a controller coupled to the active light beacon and RF beacon to facilitate independent control of the active light beacon and RF beacon.

Abstract: Auto-tunable antenna devices and methods of using the same are described herein. One method for tuning an antenna of a device includes comparing a reference phase of a reference signal to a return phase of a return signal of the antenna and sending a correction signal to a tunable circuit element of the antenna in response to the reference phase being out of phase with the return phase.

Abstract: Generally discussed herein are techniques, software, apparatuses, and systems configured for tuning an antenna. In one or more embodiments, a method can include sending, by processing circuitry, one or more signals to an antenna tuner to sweep the tuner through a plurality of tuner states, determining a plurality of power values, each power value corresponding to a signal received from an antenna and each power value corresponding to the tuner being in a state of the plurality of tuner states, and sending one or more signals to the tuner to set the tuner to a tuner state of the plurality of tuner states, the tuner state determined using the determined powers.

Abstract: An integrated identification system including a housing, an active light beacon supported by the housing, an RF beacon supported by the housing, and a controller coupled to the active light beacon and RF beacon to facilitate independent control of the active light beacon and RF beacon.

Abstract: An active card, such as a smart credit or debit card, includes a substrate, a piezoelectric film sensor embedded in the substrate, and an active card module embedded in the substrate and coupled to the piezoelectric film sensor. The piezoelectric film sensor receives an input stimulation and outputs a voltage in response to the input stimulation. The active card module receives the voltage generated by the piezoelectric film sensor and executes a function.

Abstract: Some embodiments relate to an optical microphone according to an example embodiment. The optical microphone includes a semiconducting laser. The semiconducting laser includes a p-n junction within a cavity. The optical microphone further includes an acoustic membrane that receives coherent light emitted from the semiconducting laser and directs reflected light back toward the semiconducting laser. During operation of the optical microphone, the acoustic membrane flexes in response to pressure waves. The phase of the reflected light is dependent upon a distance of the acoustic membrane from the semiconducting laser.

Abstract: An apparatus for remote detection or neutralization of an explosively formed penetrator device. A LIDAR or LADAR unit may be used in conjunction with a RADAR unit to both detect the presence of an EFP and neutralize the EFP having an associated passive infrared sensor. The LIDAR unit's wavelength is selected to approximate the signature from the intended EFP target which then causes the safe remote detonation of the EFP. The detected EFP signature may be compared with known signatures and presented to a user via a display terminal. The display terminal may also present associated terrain or GPS data.

Abstract: An approach for making thin flexible circuits. A layer of dielectric may have one or two surfaces coated with metal. The dielectric and the metal may each have a sub-mil thickness. The dielectric may be held in a fixture for fabrication like that of integrated circuits. The metal may be patterned and have components attached. More layers of dielectric and patterned metal may be added to the flexible circuit. Also bond pads and connecting vias may be fabricated in the flexible circuit. The flexible circuit may be cut into a plurality of smaller flexible circuits.