Abstract: Spatial power-combining devices with reduced dimensions are disclosed. Spatial power-combining devices are provided that employ a hybrid structure including both a planar splitter/combiner and an antipodal antenna array. Planar splitters may be arranged to divide an input signal while antipodal antenna arrays may be arranged to combine amplified signals. In other applications, the order may be reversed such that antipodal antenna arrays are arranged to divide an input signal while a planar combiner is arranged to combine amplified signals. Advantages of such spatial power-combining devices include reduced size and weight while maintaining suitable performance for operation in desired frequency bands.

Abstract: Spatial power-combining devices with reduced dimensions are disclosed. Spatial power-combining devices are provided that employ a hybrid structure including both a planar splitter/combiner and an antipodal antenna array. Planar splitters may be arranged to divide an input signal while antipodal antenna arrays may be arranged to combine amplified signals. In other applications, the order may be reversed such that antipodal antenna arrays are arranged to divide an input signal while a planar combiner is arranged to combine amplified signals. Advantages of such spatial power-combining devices include reduced size and weight while maintaining suitable performance for operation in desired frequency bands.

Abstract: Spatial power-combining devices with reduced dimensions are disclosed. Spatial power-combining devices are provided that employ a hybrid structure including both a planar splitter/combiner and an antipodal antenna array. Planar splitters may be arranged to divide an input signal while antipodal antenna arrays may be arranged to combine amplified signals. In other applications, the order may be reversed such that antipodal antenna arrays are arranged to divide an input signal while a planar combiner is arranged to combine amplified signals. Advantages of such spatial power-combining devices include reduced size and weight while maintaining suitable performance for operation in desired frequency bands.

Abstract: A BAW device includes a substrate, a first reflector, and at least two BAW transducers. The first reflector resides over the substrate and has a plurality of reflector layers. A first BAW transducer resides over a first section of the first reflector, has a first series resonance frequency, and has a first piezoelectric layer of a first thickness between a first top electrode and a first bottom electrode. The second BAW transducer resides over a second section of the first reflector, has a second series resonance frequency that is different than the first series resonance frequency, and has a second piezoelectric layer of a second thickness, which is different than the first thickness, between a second top electrode and a second bottom electrode.

Abstract: A BAW device includes a substrate, a first reflector, and at least two BAW transducers. The first reflector resides over the substrate and has a plurality of reflector layers. A first BAW transducer resides over a first section of the first reflector, has a first series resonance frequency, and has a first piezoelectric layer of a first thickness between a first top electrode and a first bottom electrode. The second BAW transducer resides over a second section of the first reflector, has a second series resonance frequency that is different than the first series resonance frequency, and has a second piezoelectric layer of a second thickness, which is different than the first thickness, between a second top electrode and a second bottom electrode.

Abstract: A power splitter/divider may be used with a paralleled amplifier. The power splitter/divider includes a common port and a distribution structure for distributing equal-amplitude samples of the applied signal from the common port to four cascades of artificial transmission lines. The impedances of the sections of artificial transmission line are stepped, in order to provide an impedance transformation between the individual ports and the impedance presented to the common port. When there are four cascades, each presents an impedance of 200 ohms to the common port, for operation in a 50-ohm system. Each artificial transmission line of each cascade includes at least two planar, spirally disposed elongated conductors, spaced to provide mutual coupling between turns. In at least some of the artificial transmission lines, discrete capacitors aid in forming pi sections of transmission line.

Abstract: A power splitter/divider may be used with a paralleled amplifier. The power splitter/divider includes a common port and a distribution structure for distributing equal-amplitude samples of the applied signal from the common port to four cascades of artificial transmission lines. The impedances of the sections of artificial transmission line are stepped, in order to provide an impedance transformation between the individual ports and the impedance presented to the common port. When there are four cascades, each presents an impedance of 200 ohms to the common port, for operation in a 50-ohm system. Each artificial transmission line of each cascade includes at least two planar, spirally disposed elongated conductors, spaced to provide mutual coupling between turns. In at least some of the artificial transmission lines, discrete capacitors aid in forming pi sections of transmission line.