Abstract: SiGe Differential Cascode Amplifier with Miller Effect Resonator A high-power, high frequency (1-100 GHz) power amplifier, made using SiGe transistors. A differential common-emitter amplifier section supplies the voltage amplification, allowing the total voltage swing of the amplifier to be twice the breakdown voltage of the individual transistors. Current amplification is supplied by a differential common-emitter amplifier section, connected in cascode with the differential common-emitter amplifier section. Appropriately chosen resonators in the cascode connection resonate out the Miller effect, negative current feed back of the circuit at the amplifier's operational frequency, allowing the amplifier to provide high power output at the operational frequency.

Abstract: A receiver circuit including a differential amplifier and at least one common mode feedback circuit coupled to the differential amplifier for providing a control current to the differential amplifier for regulating a common mode voltage of the differential amplifier. The receiver circuit provides integration and sampling on an input signal, and may be used as a portion of a sensor circuit.

Abstract: A manicure file for acrylic nails including an elongate, substantially flexible yet rigid stick with opposite distal ends having flat upper and lower surfaces and, a rounded peripheral edge. A layer of resilient material is adhered to each of the distal ends in sandwiched relation between the stick and an outer exposed layer of emery material disposed in covering relation thereto, wherein hardened acrylic nail outer and inner surfaces and nail edges can be filed smooth without damaging the cuticle or skin surrounding the nail.