Downward type MEMS switch and method for fabricating the same
A downward type micro electro mechanical system (EMS) switch and a method of fabricating the same is provided. The downward type MEMS switch includes first and...
Micro-electromechanical device and module and method of manufacturing same
The MEMS element of the invention has a first, a second and an intermediate third electrode. It is given an increased dynamic range in that the switchable...
Resonator having a three dimensional defected ground structure in
A high quality resonator has a three dimensional Defected Ground Structure (DGS) in the transmission line. The resonator includes a substrate installed at the...
An electronic component includes first and second resonators provided within a layered substrate including stacked dielectric layers. The first resonator...
Device and method for cascading filters of different materials
Some embodiments of the invention provide a filter having at least one first filter, each first filter being a band-reject type filter having a first set of...
Bulk acoustic wave device
An apparatus includes a stacked crystal filter and a bulk acoustic wave resonator, which are acoustically coupled.
Micro-electro-mechanical-system (MEMS) resonator and manufacturing method
A micro-electro-mechanical-system resonator, includes: a substrate; a fixed electrode formed on the substrate; and a movable electrode, arranged facing the...
Micro-electro-mechanical transducer having a surface plate
A micro-electro-mechanical transducer (such as a cMUT) is disclosed. The transducer has a base, a spring layer placed over the base, and a mass layer connected...
Band rejection filter capable of reducing harmonics and related satellite
A band rejection filter capable of reducing harmonics includes a first signal end, a second signal end, a high pass filter coupled between the first signal end...
Band-pass filter circuit and multi-layer structure and method thereof
A band-pass filter includes a plurality of resonators, a feedback capacitive device and a grounding inductance device. A first end of each resonator is...
Acoustic wave device, filter and duplexer
An acoustic wave device includes a first resonator having a piezoelectric substance sandwiched between a pair of electrodes in a direction of an c-axis...
Balanced-unbalanced conversion circuit
A balanced-unbalanced conversion circuit includes a first coupling line, an unbalanced terminal connected to the first coupling line, a ground terminal...
Printed circuit board having a plurality of angled differential pairs of
A printed circuit board includes a plurality of differential pairs arranged thereon side-by-side. Each differential pair includes two transmission lines. Each...
Modulation device and pulse wave generation device
Provided is a modulation device including a signal selection circuit selecting two carrier signals from a plurality of carrier signals having the same frequency...
Oscillator device, optical deflector and image forming apparatus using the
An oscillator device includes an oscillation system having an oscillator and an elastic supporting member, a detecting member for detecting oscillation...
Configurable wide tuning range oscillator core
An oscillator includes a resonator, a first and a second p-type transistor, and a first and a second n-type transistor. The resonator has a first terminal and a...
Oscillator and communication system using the same
A transfer impedance from input terminals of a resonator to output terminals of the resonator is larger than a driving-point impedance of the input terminals of...
Transistor-based micrometric or nanometric resonant device
The resonant device comprises an electromechanical resonator of nanometric or micrometric size that comprises a mobile element and a fixed element. Detection...
Oscillator, transmitter-receiver and frequency synthesizer
An output terminal 6 is provided at the connecting point 5 between the collector terminal of a transistor 1 and an open-ended stub 4 by connecting the...
Holdover circuit for phase-lock loop
A clock circuit includes a phase-lock loop and a holdover circuit. The phase-lock loop generates an output clock signal having a constant frequency based on a...
High-linearity low noise amplifier
Embodiments of a high-linearity low-noise amplifier (LNA) are generally described herein. Other embodiments may be described and claimed. In some embodiments,...
RF power amplifier apparatus and power supply circuit for controlling
power-supply voltage to RF power amplifier
The RF power amplifier apparatus has an RF power amplifier and a power-supply circuit. The power-supply circuit controls the level of a source voltage supplied...
Low power integrated circuit
The present invention relates to an integrated electrical circuit in particular a receiver or driver suitable for broadband communication, such as optical...
Step variable gain amplifier
Disclosed is a step variable gain amplifier for linearly amplifying a signal received from an antenna. The step variable gain amplifier includes: an...
Method of using integrated power amplifier
An output-impedance in a power amplifier is provided. A first transistor Q.sub.BUF of a buffer stage is connected to a first side of a resistor R.sub.F and a...
Reconfigurable distributed active transformers
Reconfigurable distributed active transformers are provided. The exemplary embodiments provided allow changing of the effective number and configuration of the...
Driving circuit system and method of elevating slew rate of operational
The invention discloses a driving circuit system and a method of elevating a slew rate of an operational amplifier. The driving circuit system comprises an...
Method and device for performing offset cancellation in an amplifier using
An operational amplifier including: a differential pair of transistors coupled to a pair of input signals; and a pair of floating-gate transistors coupled to...
Thermal regulation of a class-D audio amplifier
A class-D audio amplifier is protected by thermal regulation which decreases the gain of the class-D audio amplifier by asserting an over-temperature signal...
Class D amplifier circuit with bi-directional power switch
A Class D amplifier circuit in accordance with an embodiment of the present application includes a converter stage operable to provide a desired AC voltage and...
Pre-distortion apparatus of power amplifier and method thereof
A pre-distortion apparatus of a power amplifier includes: a pre-distortion unit configured to generate a pre-distorted signal of an input signal by calculating...
RF power amplifier system with impedance modulation
A power amplifier controller circuit controls an adjustable impedance matching network at the output of a power amplifier to vary its load line to improve the...
Signal processing method and power amplifier device
A signal processing method and power amplifier device are disclosed. The method may include receiving a signal to be transmitted, decomposing an original signal...
Switched capacitor amplifier circuit with clamping
A system comprises a switched capacitor amplifier including an operational amplifier (opamp). A switching circuit comprises a first switch connected across...
A filter circuit that removes high-frequency components from an input signal, comprises: an operational amplifier; a first resistor connected between a...
Filter circuit and communication device
There is provided a filter circuit that includes a flying capacitor and a capacitor that is provided in parallel with the flying capacitor, between an input...
Semiconductor integrated circuit
A semiconductor integrated circuit includes: a first flip-flop, a combined circuit and a second flip-flop that form a critical path; a first delay circuit and a...
Charge pump circuit
A charge pump circuit includes a first plurality of capacitors, and a first precharge circuit. The first plurality of capacitors are connected in parallel to...
Fast-switching low-noise charge pump
In one embodiment of the invention, a method for a charge pump is disclosed. The method includes biasing a plurality of transistors; switching a pair of main...
Over-voltage tolerant input circuit
An over-voltage tolerant input circuit has a pad. An Nwell bias circuit is electrically coupled to the pad. A current block circuit is electrically coupled to...
Frequency conversion mixer
Provided is a frequency conversion mixer. The frequency conversion mixer includes a transconductance stage, a switching stage, a load stage, a current bleeding...
Level shifting circuit
A level shifting circuit including a driving circuit, a reset circuit, a coupling circuit and an output-stage circuit is provided. The driving circuit,...
Differential signal generation circuit
A differential signal generation circuit includes: an inverter array configured to sequentially invert an input signal to generate a plurality of delayed...
An interface of the present invention includes a first inverter circuit that inverts a logic level of an input signal given to an external input terminal and...
Pulse generating circuit and pulse width modulator
A pulse generating unit receives a clock at a predetermined frequency, and generates a pulse signal which transits synchronously with the positive edge of the...
Duty cycle correction circuit
A duty cycle correction circuit comprises first and second pulse generators, a clock dividing unit, a detecting unit, and a pulse width control unit. The first...
Clock generator and methods using closed loop duty cycle correction
Closed-loop duty-cycle correctors (DCCs), clock generators, memory devices, systems, and methods for generating an output clock signal having a particular duty...
Compensation of degradation of performance of semiconductor devices by
clock duty cycle adaptation
The device degradation of integrated circuits may be compensated for by appropriately adapting the duty cycle of the clock signal. For this purpose, a...
Phase-locked loop having a feedback clock detector circuit and method
A method for a phase-locked loop (PLL) in an integrated circuit, wherein the PLL comprises a voltage-controlled oscillator (VCO). The method includes, in a...
Periodic signal synchronization apparatus, systems, and methods
Apparatus, systems, and methods are disclosed that operate to generate a periodic output signal from a periodic input signal, obtain a plurality of samples of a...