Abstract: An amplifier having an input transmission network with a plurality of input transformers having serially coupled primary windings. Each one of the input transformers has a secondary winding magnetically coupled to a corresponding one of the primary windings. The amplifier includes an output transmission network having a plurality of output transformers having serially coupled secondary windings. Each one of the output transformers has a secondary winding magnetically coupled to a corresponding one of the primary windings. The amplifier includes a plurality of amplifier sections, each one the sections having an input connected to a corresponding one of the secondary windings of the input transformers and an output connected to a corresponding one of the primary windings of the output transformers.

Abstract: A method of fabricating an array of radiating elements includes on one layer or surface of a dielectric substrate, forming a first leg of a first resonator loop, on another layer or surface of the dielectric substrate forming a second leg of the first resonator loop between adjacent radiating elements, forming a via through the dielectric substrate, and metallizing the via forming a third leg of the first resonator loop interconnecting the first and second legs.

Abstract: An amplifier having an input transmission network with a plurality of input transformers having serially coupled primary windings. Each one of the input transformers has a secondary winding magnetically coupled to a corresponding one of the primary windings. The amplifier includes an output transmission network having a plurality of output transformers having serially coupled secondary windings. Each one of the output transformers has a secondary winding magnetically coupled to a corresponding one of the primary windings. The amplifier includes a plurality of amplifier sections, each one the sections having an input connected to a corresponding one of the secondary windings of the input transformers and an output connected to a corresponding one of the primary windings of the output transformers.

Abstract: A phase shifter-attenuator system having: a controller for producing a digital word representative of a predetermined phase shift and attenuation provided to an input signal; and a phase shifter-attenuation section. The phase shifter-attenuation section includes: a phase rotator for providing one of a plurality combinations of phase shifts-attenuation states to the input signal selectively in accordance with one portion of the produced digital word; and an attenuation section for distributing the plurality of combinations of phase shift-attenuation states over a selected range of attenuations, such range being selected in accordance with a second portion of the produced digital word.

Abstract: A metamaterial radome/isolator system includes a radiation source for providing a radiation beam through the radome/isolator having a frequency beyond the bandgap region where the metamaterial permittivity and permeability are both positive and the metamaterial medium has a low, matched relative permittivity and relative permeability.

Abstract: A method of fabricating an array of radiating elements includes on one layer or surface of a dielectric substrate, forming a first leg of a first resonator loop, on another layer or surface of the dielectric substrate forming a second leg of the first resonator loop between adjacent radiating elements, forming a via through the dielectric substrate, and metallizing the via forming a third leg of the first resonator loop interconnecting the first and second legs.

Abstract: A multilayer metamaterial isolator and method of fabricating the same. A first layer or surface of a multilayer dielectric substrate includes a first leg of a first resonator loop. A second layer or surface of the multilayer dielectric substrate includes a second leg of the first resonator loop. A third leg of the first resonator loop extends through the multilayer dielectric substrate interconnecting the first and second legs of the first resonator loop.

Abstract: A multilayer metamaterial isolator and method of fabricating the same. A first layer or surface of a multilayer dielectric substrate includes a first leg of a first resonator loop. A second layer or surface of the multilayer dielectric substrate includes a second leg of the first resonator loop. A third leg of the first resonator loop extends through the multilayer dielectric substrate interconnecting the first and second legs of the first resonator loop.

Abstract: Techniques for attaching a replacement chip to an imaging cartridge are described. An exemplary method of modifying a toner hopper assembly for use in a toner cartridge consists of providing the toner hopper assembly having a generally cylindrical shape and an at least partially non-functioning electronic chip with electrical contacts disposed in an endplate section of the generally cylindrical shape. The method further modifies the toner hopper assembly by affixing a replacement chip to the toner hopper assembly to form a modified toner hopper assembly. The replacement chip includes replacement electrical contacts which allow the replacement chip to communicate with a printer when the modified toner cartridge is installed in the printer.