A high frequency circuit includes a transistor having an input electrode that inputs a high frequency signal and an output electrode that outputs the high frequency signal, a transmission line that is connected to any one of the input electrode and the output electrode, and transmits the high frequency signal, a coupling line electrically separated from the transmission line to an extent that an electromagnetic field coupling is enabled with the transmission line, and a resonance circuit that is connected between a first end of the coupling line and a reference potential, and minimizes an impedance between the first end and the reference potential at a resonance frequency.

A high frequency circuit includes a transistor having an input electrode that inputs a high frequency signal and an output electrode that outputs the high frequency signal, a transmission line that is connected to any one of the input electrode and the output electrode, and transmits the high frequency signal, a coupling line electrically separated from the transmission line to an extent that an electromagnetic field coupling is enabled with the transmission line, and a resonance circuit that is connected between a first end of the coupling line and a reference potential, and minimizes an impedance between the first end and the reference potential at a resonance frequency.

An aerosol-generating system is provided, including: a cartridge including an aerosol-forming substrate; a resonant circuit, the cartridge including at least part of the resonant circuit, the circuit being configured to resonate at a predetermined resonant frequency associated with an identity of the cartridge; and an aerosol-generating device including: a housing to removably receive the cartridge, a power source to supply power to the cartridge, and control circuitry including a controller configured to determine a resonant frequency of the resonant circuit when the cartridge is received by the device, and identify the cartridge based on the determined frequency, the cartridge having a connection end to connect the cartridge to the device and including electrical contacts to electrically connect the cartridge to the device, and the device having a connection end to connect the device to the cartridge and including electrical contacts configured to electrically connect the device to the cartridge.

A radio frequency (RF) integrated circuit may include a die having passive components including at least one pair of capacitors covered by a first dielectric layer supported by the die. The RF integrated circuit may also include an inline pad structure coupled to the at least one pair of capacitors proximate an edge of the die. The inline pad structure may include a first portion and a second portion extending into a dicing street toward the edge of the die and covered by at least a second dielectric layer.

An exponentially-scaling switched impedance circuit includes: two or more impedance scaling circuits, wherein each impedance scaling circuit comprises: an input port; an output port; and a switched impedance circuit connected in parallel to the output port. Each impedance scaling circuit is configured to provide an effective impedance at the input port corresponding to a scaled-down version of the exponentially-scaling switched impedance circuit. The two or more impedance scaling circuits are connected in a cascade such that an input of an impedance scaling circuit is connected to an output of a previous impedance scaling circuit and/or an output of the impedance scaling circuit is connected to an input of a next impedance scaling circuit.

A power combiner and divider device includes a first port electrically connected to a first impedance line and a second impedance line; a second port electrically connected to the first impedance line and a coupled line; a third port electrically connected to the second impedance line and the coupled line; a third impedance line electrically connected to the coupled line; and a fourth impedance line electrically connected to each of the third impedance line and the coupled line.

Systems and methods for statistical data decimation are described. The method includes receiving a variable from a radio frequency (RF) system, propagating the variable through a model of the RF system, and counting an output of the model for the variable to generate a count. The method further includes determining whether the count meets a count threshold, generating a statistical value of the variable at the output of the model upon determining that the count meets the count threshold, and sending the statistical value to the RF system to adjust the variable.

A transformer includes: a rotary shaft configured to rotate about a central axis of the rotary shaft as a rotational axis; a primary-side first coil configured to extend around a first axis perpendicular to the central axis; a secondary-side second coil configured to extend around a second axis and supported by the rotary shaft, the second axis being perpendicular to the rotational axis in an area surrounded by the first coil; and a secondary-side third coil configured to extend around a third axis and supported by the rotary shaft, the third axis being perpendicular to the rotational axis and forming a predetermined angle with the second axis in the area.

A tapped transmission line for distributing an electrical signal, such as an RF signal, to multiple modules, and/or aggregating signals from multiple modules. Embodiments of the invention provide a tapped transmission line based on a transmission-line medium along which tap elements are dispersed, so that the tap elements have a predominantly capacitive loading of the transmission-line medium. Methods for compensating the loss of the transmission-line medium are presented as well. Applications for distribution of transmitted signals, of local oscillator signals, and to aggregation of signals from multiple oscillators are disclosed. The invention is particularly applicable to integrated circuits (IC, ASIC, RFIC), and to multichannel RF systems such as phased array and MIMO systems.

One example includes a printed circuit board (PCB) structure. The PCB structure includes a first dereferenced microstrip and a first capacitor pad contacting the first dereferenced microstrip. The PCB structure includes a second dereferenced microstrip and a second capacitor pad contacting the second dereferenced microstrip. The PCB structure also includes a capacitor including a first terminal contacting the first capacitor pad and a second terminal contacting the second capacitor pad.