Abstract: A flexible microwave antenna having a “fish-scale” ground plane is provided. The approach represents a significant advance in the combined thickness and flexibility that can be achieved, especially when using relatively thick substrates which are important for optimum antenna performance. An increase in gain was observed when bent in a positive radius of curvature and further reduction of back radiation.

Abstract: A flexible microwave antenna having a “fish-scale” ground plane is provided. The approach represents a significant advance in the combined thickness and flexibility that can be achieved, especially when using relatively thick substrates which are important for optimum antenna performance. An increase in gain was observed when bent in a positive radius of curvature and further reduction of back radiation.

Abstract: A low profile antenna that provides high isolation to back-side radiation, is flexible to allow conformal mounting to a surface, and can be tuned over a wide frequency range is conceived. The design is suitable for applications that involve electromagnetic sensing for biomedical applications that require the antenna to be in contact with the material being monitored, providing the ability to adapt the frequency and input impedance via electronic control. It is also suitable for a range of communication applications that require low profile designs that mount conformably to structures such as helmet-mounted and vehicle-mounted configurations.

Abstract: According to certain embodiments, a temperature measurement system includes a radiometer coupled to an antenna and a signal processor. The radiometer is operable to generate two or more signals representing electro-magnetic radiation received at a corresponding two or more differing frequencies. The signal processor receives the two or more signals from the radiometer while the antenna is placed adjacent to a surface of a substrate, and compares the two or more signals with one another to determine a brightness temperature of the substrate at a depth of the substrate from the antenna.

Abstract: An apparatus for supporting an object includes a member having a plurality of connected bent portions. The portions include pair of generally horizontally extending, spaced apart, generally parallel lower legs each having a free end and an opposite end connected a lower end of one of a pair of vertically extending first uprights each connected at an upper end to a generally horizontally extending first cross beam. A pair of generally horizontally extending arms are each connected at one end to one of the first uprights between the upper and lower ends and at an opposite end to a lower end of one of a pair of generally vertically extending second uprights each connected at an upper end to a generally horizontally extending second cross beam. A pair of upper legs each have one end connected to one of the first uprights and extend generally horizontally parallel to and spaced above the lower legs a distance generally corresponding to a thickness of carpet in a vehicle.

Abstract: A two-pole inductorless monolithic crystal filter device comprising first and second spaced electrodes mounted on one face of the device, third and fourth spaced electrodes mounted on the opposite face of the device in superimposed relationship with the first and second electrodes, a first capacitor coupled between the first and fourth electrodes, means electrically coupling the second and third electrodes, and a second capacitor coupling the second and third electrodes to a point of reference potential with the first electrode and point of reference potential being designated as input terminals and the fourth electrode and point of reference potential being designated as output terminals.