A compensation circuit reduces the negative effects of antenna-to-antenna coupling between proximately located antennas. The compensation circuit is coupled between first and second antenna ports. A first transmit/receive path extends from radio frequency (RF) circuitry to the first antenna port. A second transmit/receive path extends from the RF circuitry to the second antenna port. Antennas are coupled to each of the antenna ports. The compensation circuit includes negatively coupled first and second inductors, which are coupled in series between the first antenna port and the second antenna port. At least one shunt acoustic resonator is coupled between a fixed voltage node and a common node between the first and second inductors. In operation, the compensation circuit presents a negative capacitance between the first antenna port and the second antenna port over the first frequency range to reduce the effects of the antenna-antenna coupling.

Methods and systems capable of launching signal-carrying transverse electromagnetic waves onto a transmission line in the higher voltage region of the transmission distribution network. Such methods and systems may include a surface wave launcher located in the higher voltage region, a network unit located in a lower voltage region, and an arrester separating the surface wave launcher and the network unit, the arrester preventing voltage from arcing over from the higher voltage region to the lower voltage region where the arrester provides the signal to the surface wave launcher.

Methods and systems capable of launching signal-carrying transverse electromagnetic waves onto a transmission line in the higher voltage region of the transmission distribution network. Such methods and systems may include a surface wave launcher located in the higher voltage region, a network unit located in a lower voltage region, and an arrester separating the surface wave launcher and the network unit, the arrester preventing voltage from arcing over from the higher voltage region to the lower voltage region where the arrester provides the signal to the surface wave launcher.

An LC resonance element (10) includes a dielectric film (12), a common electrode (11) formed of a thin-film conductor on a lower surface (12D) of the dielectric film, a first capacitor (C1) and a second capacitor (C2) that are connected in series via the common electrode (11) and constitute a thin-film capacitor (TC), first and second external connection terminals (14A, 14B) formed on an upper surface (12U) of the dielectric film, a thin-film conductive wire (16) constituting a thin-film inductor (TL), a first upper electrode (13A) of the first capacitor formed on the upper surface (12U), and a second upper electrode (13B) of the second capacitor formed on the upper surface (12U). The thin-film conductive wire (16) is formed in a region (R2) located on the upper surface (12U) of the dielectric film and outside the common electrode (11) in plan view.

A high power thin film filter is disclosed includes a substrate having a substrate thickness in a Z-direction between a first surface and a second surface. A thin film capacitor may be formed over the first surface. A thin film inductor may be spaced apart from the thin film capacitor by at least the thickness of the substrate. A via may be formed in the substrate that electrically connects the thin film capacitor and the thin film inductor. The via may include a polymeric composition.

A high power thin film filter is disclosed includes a substrate having a substrate thickness in a Z-direction between a first surface and a second surface. A thin film capacitor may be formed over the first surface. A thin film inductor may be spaced apart from the thin film capacitor by at least the thickness of the substrate. A via may be formed in the substrate that electrically connects the thin film capacitor and the thin film inductor. The via may include a polymeric composition.

Control console for a powered surgical tool that includes a transformer with a secondary winding across which the tool drive signal is present. Also internal to the transformer is a matched current source that consists of a leakage control winding and a capacitor. The current sourced by the matched current at least partially cancels out leakage current that may be present.

Control console for a powered surgical tool that includes a transformer with a secondary winding across which the tool drive signal is present. Also internal to the transformer is a matched current source that consists of a leakage control winding and a capacitor. The current sourced by the matched current at least partially cancels out leakage current that may be present.

Methods and systems capable of launching signal-carrying transverse electromagnetic waves onto a transmission line in the higher voltage region of the transmission distribution network. Such methods and systems may include a surface wave launcher located in the higher voltage region, a network unit located in a lower voltage region, and an arrester separating the surface wave launcher and the network unit, the arrester preventing voltage from arcing over from the higher voltage region to the lower voltage region where the arrester provides the signal to the surface wave launcher.

Methods and systems capable of launching signal-carrying transverse electromagnetic waves onto a transmission line in the higher voltage region of the transmission distribution network. Such methods and systems may include a surface wave launcher located in the higher voltage region, a network unit located in a lower voltage region, and an arrester separating the surface wave launcher and the network unit, the arrester preventing voltage from arcing over from the higher voltage region to the lower voltage region where the arrester provides the signal to the surface wave launcher.