Abstract:
A frequency generation solution controls an oscillator amplitude using two feedback paths to generate high frequency signals with lower power consumption and lower noise. A first feedback path provides continuous control of the oscillator amplitude responsive to an amplitude detected at the oscillator output. A second feedback path provides discrete control of the amplitude regulating parameter(s) of the oscillator responsive to the detected oscillator amplitude. Because the second feedback path enables the adjustment of the amplitude regulating parameter(s), the second feedback path enables an amplifier in the first feedback path to operate at a reduced gain, and thus also at a reduced power and a reduced noise, without jeopardizing the performance of the oscillator.
Abstract:
Oszillator umfassend zwei Resonatoren, wobei die Richtung des Vektors der Beschleunigungsempfindlichkeit bezogen auf seine Montagefläche mindestens eines ersten Resonators der mindestens zwei Resonatoren im Wesentlichen der an einer Spiegelebene gespiegelten Richtung des Vektors der Beschleunigungsempfindlichkeit bezogen auf seine Montagefläche mindestens eines zweiten Resonators der mindestens zwei Resonatoren entspricht; und Oszillator umfassend zwei Resonatoren, wobei der Oszillator einen Widerstand umfasst, der einem der Resonatoren effektiv parallel geschaltet ist, und dessen Widerstandswert geringer ist, als das Einhundertfache des Serienresonanzwiderstandes des kombinierten Resonators bei der gewünschten Resonanzfrequenz.
Abstract:
The current document is directed to various types of oscillating resonant modules ("ORMs"), including linear-resonant vibration modules, that can be incorporated in a wide variety of appliances, devices, and systems to provide vibrational forces. The vibrational forces are produced by back-and-forth oscillation of a weight or member along a path, generally a segment of a space curve. A controller controls each of one or more ORMs to produce driving oscillations according to a control curve or control pattern for the ORM that specifies the frequency of the driving oscillations with respect to time. The driving oscillations, in turn, elicit a desired vibration response in the device, appliance, or system in which the one or more ORMs are included. The desired vibration response is achieved by selecting and scaling control patterns in view of known resonance frequencies of the device, appliance, or system.
Abstract:
The invention relates to a resonator circuit (100), the resonator circuit (100) comprising a transformer (101) comprising a primary winding (103) and a secondary winding (105), wherein the primary winding (103) is inductively coupled with the secondary winding (105), a primary capacitor (107) being connected to the primary winding (103), the primary capacitor (107) and the primary winding (103) forming a primary circuit, and a secondary capacitor (109) being connected to the secondary winding (105), the secondary capacitor (109) and the secondary winding (105) forming a secondary circuit, wherein the resonator circuit (100) has a common mode resonance frequency at an excitation of the primary circuit in a common mode, wherein the resonator circuit (100) has a differential mode resonance frequency at an excitation of the primary circuit in a differential mode, and wherein the common mode resonance frequency is different from the differential mode resonance frequency.
Abstract:
Disclosed is an electronic device including a resonator that generates an induced current by electromagnetic coupling. The resonator includes a first conductor, a plurality of second conductors, a one end of each of the second conductors being electrically coupled to a first point of the first conductor, and an other end of each of the second conductors being electrically coupled to a second point of the first conductor, and at least one impedance load connected with the second conductors in series or in parallel. Thus, the resonator may generate current through the first and second conductors.
Abstract:
A low loss unidirectional conductive sheet using magnetic field biasing and electron spin precession for coupling RF power to ferrite resonators, comprising the step of placing a plurality of ferrite resonators in a bias magnetic field to excite the electron spins of the materials of said ferrite resonators into precession.
Abstract:
Radio frequency (RF) power generator including an outer enclosure having a system cavity. The outer enclosure separates the system cavity from an exterior of the RF power generator. The outer enclosure is configured to reduce leakage of the electromagnetic radiation into the exterior. The RF power generator also includes a feedthrough assembly comprising a coaxial line configured to receive electric power generated by an RF amplification system. The coaxial line is positioned within the system cavity and has inner and outer conductors. The feedthrough assembly includes a connector shield that forms a feedthrough to the exterior of the RF power generator. The connector shield is electrically coupled to the outer conductor of the coaxial line and integrated with the outer enclosure to reduce leakage of electromagnetic radiation into the exterior.
Abstract:
The present invention relates to an oscillator device (1) comprising a first amplifier unit (2) and a waveguide cavity resonator (3) with a cavity (11) and a first tuning device (4) mounted in the cavity (11). The cavity (11) has a first cavity length (a) running between two opposing inner walls (5,6) where a resonance frequency (f r ) of the resonator (3) is dependent on the first cavity length (a). The first tuning device (4) comprises at least one row (13, 14, 15) of switches (16) that are electrically openable and closable. Each row (13, 14, 15) is arranged to constitute an electrically conducting connection between said opposing inner walls (7, 8) when the switches of said row are closed. The first amplifier unit (2) is electrically connected to the waveguide cavity resonator (3) by means of a first (35) and a second connector (36) which are mutually out of phase with each other. The first amplifier unit (2) further comprises a first amplifier arrangement (37) and a tuneable bias connection (38).
Abstract:
An integrated frequency quadrupler consists of a pair of balanced frequency doublers that are driven in phase quadrature using a hybrid coupler. This approach results, effectively, in a "unilateral" multiplier that presents a match to the input-driving source, irrespective of the impedance of the doubler stages. The present invention applies this architecture to implement an integrated frequency quadrupler with output frequency of 160 GHz using quasi vertical GaAs varactors fabricated on thin silicon support membranes. The quadrupler has a balanced circuit architecture that addresses degradation issues often arising from impedance mismatches between multiplier stages. A unique quasi-vertical diode process is used to implement the quadrupler, resulting in an integrated drop-in chip module that incorporates 18 varactors, matching networks and beamleads for mounting. The chip is tailored to fit a multiplier waveguide housing resulting in high reproducibility and consistency in manufacture and performance.