Abstract: Example implementations relate to an antenna. In some examples, a system may comprise a radio, an antenna, and an enforcer. The antenna may be connected to the radio and the antenna may be non-functional until an enabling signal is received. The enforcer may modify the enabling signal in response to a determination whether a utilization of the antenna by the radio is permitted.

Abstract: Example implementations relate to an antenna. In some examples, a system may comprise a radio, an antenna, and an enforcer. The antenna may be connected to the radio and the antenna may be non-functional until an enabling signal is received. The enforcer may modify the enabling signal in response to a determination whether a utilization of the antenna by the radio is permitted.

Abstract: The invention includes an adaptive control system used to control a plant. The adaptive control system includes a hedge unit that receives at least one control signal and a plant state signal. The hedge unit generates a hedge signal based on the control signal, the plant state signal, and a hedge model including a first model having one or more characteristics to which the adaptive control system is not to adapt, and a second model not having the characteristic(s) to which the adaptive control system is not to adapt. The hedge signal is used in the adaptive control system to remove the effect of the characteristic from a signal supplied to an adaptation law unit of the adaptive control system so that the adaptive control system does not adapt to the characteristic in controlling the plant.

Abstract: The invention includes an adaptive control system used to control a plant. The adaptive control system includes a hedge unit that receives at least one control signal and a plant state signal. The hedge unit generates a hedge signal based on the control signal, the plant state signal, and a hedge model including a first model having one or more characteristics to which the adaptive control system is not to adapt, and a second model not having the characteristic(s) to which the adaptive control system is not to adapt. The hedge signal is used in the adaptive control system to remove the effect of the characteristic from a signal supplied to an adaptation law unit of the adaptive control system so that the adaptive control system does not adapt to the characteristic in controlling the plant.

Abstract: The invention includes an adaptive control system used to control a plant. The adaptive control system includes a hedge unit that receives at least one control signal and a plant state signal. The hedge unit generates a hedge signal based on the control signal, the plant state signal, and a hedge model including a first model having one or more characteristics to which the adaptive control system is not to adapt, and a second model not having the characteristic(s) to which the adaptive control system is not to adapt. The hedge signal is used in the adaptive control system to remove the effect of the characteristic from a signal supplied to an adaptation law unit of the adaptive control system so that the adaptive control system does not adapt to the characteristic in controlling the plant.

Abstract: A method and apparatus for suppressing the generation of passive intermodulation within passive devices. A dielectric sheet comprising dielectric material is placed between first and second conductive elements of the passive device. The second conductive element is then mounted to the first conductive element, thereby "sandwiching" the dielectric sheet between the first and second conductive elements. In this manner, a direct contact connection can not be formed at the junction of the first conductive element and the second conductive element. This absence of a continuous direct contact minimizes the opportunity for passive intermodulation products to be generated at this junction of the passive device.