Class 333/198 - Plural interresonator coupling paths

Subclass of Class 333 - Wave transmission lines and networks
Definition: Subject matter wherein some of the vibrators are coupled
No. of patents: 36
Last issue date: 08/05/2008

Number	Title	Issue Date
7406761	Method of manufacturing vibrating micromechanical structures A method for fabrication of single crystal silicon micromechanical resonators using a two-wafer process, including either a Silicon-on-insulator (SOI) or insulating base and resonator wafers, wherein resonator anchors, a capacitive air gap, isolation trenches, and a...	08/05/2008
7323952	Breath-mode ring resonator structure, and method of designing, operating and using same There are many inventions described and illustrated herein, as well as many aspects and embodiments of those inventions. In one aspect, the present invention is directed to one or more microelectromechanical ring resonator structures having a circular or substantial...	01/29/2008
7202590	Surface acoustic wave device and method of manufacturing the same A surface acoustic wave device includes: a piezoelectric substrate that has two or more resonators formed on a surface; and a supporting substrate that is joined to another surface of the piezoelectric substrate. In this surface acoustic wave device, at least two of...	04/10/2007
7098757	Electrically-coupled micro-electro-mechanical filter systems and methods An electrically-coupled micro-electro-mechanical system (MEMS) filter system and method are disclosed. In one embodiment, the MEMS filter system comprises a first microelectromechanical system (MEMS) resonator comprising a first resonating element, a second MEMS res...	08/29/2006
6943645	Surface acoustic wave duplexer and communication apparatus having the same A surface acoustic wave duplexer includes a first filter including a ladder filter and a second filter including a ladder filter with a pass band that is different from that of the first filter. Inductors are connected in parallel with respective series resonators o...	09/13/2005
6930569	Micromechanical resonator having short support beams The illustrative embodiment of the present invention is a vertical-mode, free-free beam resonator, and micromechanical circuits that include one or more such resonators. In accordance with the illustrative embodiment, the resonator comprises a movable beam that over...	08/16/2005
6917138	Method and subsystem for processing signals utilizing a plurality of vibrating micromechanical devices Several MEMS-based methods and architectures which utilize vibrating micromechanical resonators in circuits to implement filtering, mixing, frequency reference and amplifying functions are provided. A method and subsystem are provided for processing RF signals utili...	07/12/2005
6731185	Surface acoustic wave device and communication apparatus A branching filter is a surface acoustic wave device in which a first filter having a relatively low bandpass frequency and a second filter having a relatively high bandpass frequency are connected to a common terminal. A junction-side resonator that is included in ...	05/04/2004
6710680	Reduced size, low loss MEMS torsional hinges and MEMS resonators employing such hinges Torsional hinge support beams (104, 106, 108, 110, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500) that are corrugated, perforated and/or have non-uniform width are provided. The support beams are useful in flexural beam resonators (100, ...	03/23/2004
6680660	Method and apparatus for selecting at least one desired channel utilizing a bank of vibrating micromechanical apparatus Several MEMS-based methods and architectures which utilize vibrating micromechanical resonators in circuits to implement filtering, mixing, frequency reference and amplifying functions are provided. For example, a method and apparatus for selecting at lea...	01/20/2004
6624726	High Q factor MEMS resonators Microelectromechanical resonators that can be fabricated on a semiconductor die by processes normally used in fabricating microelectronics (e.g., CMOS) circuits are provided. The resonators comprises at least two vibratable members that are closely spaced...	09/23/2003
6593831	Method and apparatus for filtering signals in a subsystem including a power amplifier utilizing a bank of vibrating micromechanical apparatus Several MEMS-based methods and architectures which utilize vibrating micromechanical resonators in circuits to implement filtering, mixing, frequency reference and amplifying functions are provided. Apparatus is provided for selecting at least one desired...	07/15/2003
6429755	Method for constructing an encapsulated MEMS band-pass filter for integrated circuits Integrated circuit fabrication technique for constructing novel MEMS devices, specifically band-pass filter resonators, in a manner compatible with current integrated circuit processing, and completely encapsulated to optimize performance and eliminate en...	08/06/2002
5751200	Composite longitudinal vibration mechanical filter having undesired vibration absorber A composite longitudinal vibration mechanical filter for delivering out a supplied high-frequency signal in a predetermined frequency range includes a plurality of vibratable bodies including input and output longitudinal vibratable tuning bars with piezo...	05/12/1998
5740595	Composite longitudinal vibration mechanical filter's method of manufacturing including undesired vibration absorber A method of manufacturing a composite longitudinal vibration mechanical filter that vibrates at a preselected central frequency in a high frequency range. The filter includes a plurality of vibratable bodies including input and output vibratable bodies ea...	04/21/1998
5528806	Tunable composite longitudinal vibration mechanical filter manufacturing method A composite longitudinal vibration mechanical filter for delivering out a supplied high-frequency signal in a predetermined frequency range includes a plurality of vibratable bodies including input and output longitudinal vibratable tuning bars with piezo...	06/25/1996
5187458	Composite longitudinal vibration mechanical filter having central frequency deviation elimination means and method of manufacturing same A composite longitudinal vibration mechanical filter for delivering out a supplied high-frequency signal in a predetermined frequency range includes a plurality of vibratable bodies including input and output longitudinal vibratable tuning bars with piezo...	02/16/1993
5006824	Third mode torsional F-M resonator There is disclosed an improved electromechanical resonator for use in multiresonator mechanical bandpass filters. The resonator is constructed using two resonator rods attached to a ceramic transducer which is substantially centrally located. The thus-for...	04/09/1991
4573028	Mechanical filter apparatus having interchanged resonator means for improved coupling of bridging wires By exchanging the position of the input and output resonator means relative to other resonator elements in a mechanical filter, the lengths of the bridging wires used to control the steepness of the bandpass characteristic of the filter can be reduced. Re...	02/25/1986
4481488	Trapped energy resonator for oscillator and multiple resonator applications A trapped energy piezoelectric resonator for oscillator and multiple resonator applications has a piezoelectric substrate with electrodes disposed on each of its major surfaces. These electrodes are further comprised of a plurality of electrically interco...	11/06/1984
4405909	Mechanical filter with box-type coupling structure A mechanical bandpass filter of the cascaded flexure mode resonator bar type is provided with a coupling structure improving strength an reducing rigid-body spurious modes. Coupling wires are provided on both the top and bottom surfaces of the resonator b...	09/20/1983
4396895	Multiple resonant electromechanical filters using edge-mode vibration of a long piezoelectric plate A multimode piezoelectric mechanical filter using edge-mode piezoelectric transducers, each comprising a semi-infinite or long piezoelectric plate polarized in the thickness direction, and a pair of exciting electrodes formed on the plate at an end portio...	08/02/1983
4314216	Mechanical filter A mechanical filter having at least a pair of mechanical vibrators which are arrayed approximately in parallel with each other in regard to their longitudinal axes, and two couplers which are coupled to the pair of mechanical vibrators. According to the m...	02/02/1982
4309680	Electro-mechanical filter including mechanical resonator An electromechanical filter having mechanical resonators which is used as a channel filter for a mobile radio communication receiver and a carrier telephone. The electromechanical filter is provided with exciter means, each of which is composed of a trans...	01/05/1982
4255727	Electromechanical filters In an electromechanical filter, poles are obtained by interconnecting an electrical reactance between the input and output of the filter. It is shown that this impedance behaves as a mechanical bridge....	03/10/1981
4241321	Electromechanical filter An electromechanical filter having minimum attenuation deviation in the pass band frequency range. The filter includes a plurality of mechanical resonators arranged substantially parallel to each other in one plane and mechanical couplers of longitudinal ...	12/23/1980
4206427	Electromechanical filters An electromechanical filter having two transducers and a mechanical filter vibrating in longitudinal mode, which includes a plurality of resonators connected to each other by coupling rods. The resonators are arranged in two sections and staggered, and th...	06/03/1980
4197516	Bridged electromechanical filters An electromechanical bandpass filter includes at least one real pole consisting of vibrating resonators and couplers between adjacent resonators arranged as filter cells connected in parallel. Each cell includes a coupler and a half of each of the adjacen...	04/08/1980
4184132	Electromechanical filters A pass-band electromechanical filter, comprising a mechanical unit vibrating in the longitudinal mode mounted between two electromechanical transducers, said unit comprising a plurality of half wave resonators mounted in series and coupling rods connectin...	01/15/1980
4163960	Electromechanical filter structure An electromechanical filter comprising resonators interconnected by couplers and at least one bridge strapping over several resonators in which said resonators are longitudinally vibrating, said couplers and bridge are bending and the number of strapped r...	08/07/1979
4124829	Electromechanical filter An electromechanical filter comprising a plurality of parallel mounted mechanical resonators which are generally cylindrical in shape with a plurality of input and output resonators operating in a bending mode and at least one intermediate mechanical reso...	11/07/1978
4112360	Apparatus and method for tuning electro-mechanical filter components Apparatus and method for tuning components of an electrical mechanical filter which includes a plurality of mechanical resonators coupled together with input and output resonators and other resonators mounted between the input and output resonators which ...	09/05/1978
4097708	Solid state microwave oven power source Disclosed is a solid state power source which combines the power of a plurality of negative resistance transistor packages in a circular cavity to form an oscillator producing a resonant source of microwave energy for radar or microwave energy oven applic...	06/27/1978
4016517	Signal bandpass filter apparatus A signal bandpass filter apparatus is disclosed wherein a direct short circuit between input and output is prevented and the loss of the ground reference of the filter is detectable and fail-safe in operation....	04/05/1977
3983516	Longitudinal-mode mechanical bandpass filter A mechanical bandpass filter employs bar resonators operated in a longitudinal mode of vibration which are aligned in parallel array along their longitudinal axes by rigidly joining them together with at least two support rods at their aligned nodal plane...	09/28/1976
3949326	Electromechanical filter Electromechanical filters of the type having a plurality of resonators coupled to each other by couplers which make it possible to provide a transmission frequency characteristic with finite-attenuation poles are disclosed. The filters have a first resona...	04/06/1976

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Class 333/198 - Plural interresonator coupling paths