Abstract: An embodiment of a microwave power generation module includes an amplifier arrangement, an impedance matching element, and a resonant element. The amplifier arrangement includes a transistor with a transistor input and a transistor output. The impedance matching element is formed from a planar conductive structure. The planar conductive structure has a proximal end and a distal end, and the proximal end is electrically coupled to the transistor output. The resonant element has a proximal end electrically coupled to the distal end of the planar conductive structure, and the resonant element is configured to radiate electromagnetic energy having a microwave frequency in a range of 800 megahertz (MHz) to 300 gigahertz (GHz). A combination of the impedance matching element and the resonant element is configured to perform an impedance transformation between an impedance of the transistor and an impedance of an air cavity.

Abstract: The present disclosure presents a device and method for connecting an RF generator to a coaxial conductor. The device includes a substrate, a radio frequency generator on the substrate, and a coaxial conductor coupled to a first surface of the substrate. The coaxial conductor includes a conductive core and a conductive shield around the conductive core and is configured to transmit the radio frequency signal to a radiation device. The device includes a cap coupled to the substrate and extending from a second surface of the substrate opposite the first surface. The cap includes an outer wall and a center post. The outer wall is electrically connected to the conductive shield of the coaxial conductor and the center post is electrically connected to the conductive core of the coaxial conductor. An output pad of the radio frequency generator is electrically connected to the conductive core.

Abstract: A radiation device and related method are presented. The radiation device includes a body. The body includes a threaded portion configured to engage with a threaded opening in an engine and an open interior volume. The radiation device includes a ground electrode coupled to the body, a substrate disposed within the open interior volume in the body, and a radio frequency generator on the substrate. The radio frequency generator is configured to receive an input signal and, in response to the input signal, generate plasma energy between the body and the ground electrode.

Abstract: An embodiment of a microwave power generation module includes an amplifier arrangement, an impedance matching element, and a resonant element. The amplifier arrangement includes a transistor with a transistor input and a transistor output. The impedance matching element is formed from a planar conductive structure. The planar conductive structure has a proximal end and a distal end, and the proximal end is electrically coupled to the transistor output. The resonant element has a proximal end electrically coupled to the distal end of the planar conductive structure, and the resonant element is configured to radiate electromagnetic energy having a microwave frequency in a range of 800 megahertz (MHz) to 300 gigahertz (GHz). A combination of the impedance matching element and the resonant element is configured to perform an impedance transformation between an impedance of the transistor and an impedance of an air cavity.

Abstract: A radiation device and related method are presented. The radiation device includes a body. The body includes a threaded portion configured to engage with a threaded opening in an engine and an open interior volume. The radiation device includes a ground electrode coupled to the body, a substrate disposed within the open interior volume in the body, and a radio frequency generator on the substrate. The radio frequency generator is configured to receive an input signal and, in response to the input signal, generate plasma energy between the body and the ground electrode.

Abstract: The present disclosure presents a device and method for connecting an RF generator to a coaxial conductor. The device includes a substrate, a radio frequency generator on the substrate, and a coaxial conductor coupled to a first surface of the substrate. The coaxial conductor includes a conductive core and a conductive shield around the conductive core and is configured to transmit the radio frequency signal to a radiation device. The device includes a cap coupled to the substrate and extending from a second surface of the substrate opposite the first surface. The cap includes an outer wall and a center post. The outer wall is electrically connected to the conductive shield of the coaxial conductor and the center post is electrically connected to the conductive core of the coaxial conductor. An output pad of the radio frequency generator is electrically connected to the conductive core.

Abstract: An embodiment of a self-aligning resonator filter circuit includes a tunable resonator having a filter output node, an oscillator having an oscillator output node, a resistance element connected between the oscillator output node and the filter output node when the self-aligning resonator filter circuit is in a tuning mode, and a phase detector loop controller coupled between the oscillator output node and the filter output node. The phase detector loop controller is configured to measure a phase difference across the resistance element, and to adjust the tunable resonator in response to the phase difference.

Abstract: A NICAM processing method includes receiving and temporarily storing a current frame of A-channel and B-channel input data into a first memory at a first clock rate. Companded A-channel and B-channel data of a previous frame are read from a second memory at a second clock rate and in a manner for interleaving the previous frame companded A-channel and B-channel data into the NICAM standard required interleaved format, wherein the companded A-channel and B-channel data of the previous frame was temporarily stored during a previous frame into the second memory in a format other than an interleaved format according to NICAM standard requirements.

Abstract: A NICAM encoding method comprises performing NICAM processing and coupling a front-end to the NICAM processing. The front-end processing operates with a system clock that is integer divisible such that the system clock can be used by both the NICAM processing and the front-end processing. The front-end processing includes a front-end input processing and a front-end output processing. The front-end input processing is coupled to an input of the NICAM processing and the front-end output processing is coupled to an output of the NICAM processing.

Abstract: An embodiment of a self-aligning resonator filter circuit includes a tunable resonator having a filter output node, an oscillator having an oscillator output node, a resistance element connected between the oscillator output node and the filter output node when the self-aligning resonator filter circuit is in a tuning mode, and a phase detector loop controller coupled between the oscillator output node and the filter output node. The phase detector loop controller is configured to measure a phase difference across the resistance element, and to adjust the tunable resonator in response to the phase difference.

Abstract: A self-aligning resonator filter, a self-aligning coupled resonator filter circuit, and a television tuner circuit incorporating the filter and the circuit are disclosed herein. The self-aligning resonator filter leverages the local oscillator of the tuner circuit and can be realized with a significant reduction in the amount of off-chip components. The self-aligning resonator filter is configured to align its tunable resonator to resonate at a desired frequency in response to a phase difference measured across a resistance element during a tuning mode, and the resistance element is switched out of the self-aligning resonator filter during a run mode. The self-aligning coupled resonator filter circuit is configured to isolate its individual resonator stages during tuning such that each resonator stage can be aligned without being influenced by the other resonator stage.

Abstract: A BTSC encoder includes dual channel ADC, sync separator, audio processor, filtering device, and a composite audio signal generating device. The filtering device includes a first filter for providing a filtered L+R signal, and a second filter for providing at least one of: i) a filtered and combined pilot and modulated L?R signal and ii) separately filtered pilot and modulated L?R signals. The composite audio signal generating device is responsive to the filtered L+R signal, and at least one of i) the filtered and combined pilot and modulated L?R signal and ii) the separately filtered pilot and modulated L?R signals for generating and outputting a composite analog audio signal. In all embodiments, the modulated L?R signal is filtered via an anti-splatter filter.

Abstract: A variable interpolator (110) has an interpolation factor L for performing an interpolation of an input signal (124), where L is variable and includes a minimum value. The variable interpolator includes a differentiator (110-1), a chopper (112), and an integrator (110-2). The differentiator (110-1) is responsive to a signal on the differentiator input for performing a differentiator portion of the interpolation and for providing a differentiator result signal (134).

Abstract: An RF carrier generator comprises a circuit for sequentially counting as a function of a randomized offset and time interval, and a memory coupled to the sequential counting circuit. The memory stores samples of a desired Sigma-Delta modulator sequence bit stream. Responsive to an output of the sequential counting circuit, the memory sequentially outputs a single-bit output bit stream of a series of partial sequences of the desired Sigma-Delta modulator sequence bit stream. A method is also disclosed.

Abstract: A NICAM encoder (54) comprises a NICAM processor (82) and a front-end section (80,84) coupled to the NICAM processor. The front-end section is configured for operating with a system clock (68) that is integer divisible such that the system clock can be used by both the NICAM processor (82) and the front-end section (80,84).