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WO/2014/052943A1 |
A double balanced image reject mixer (IRM) can be configured to comprise: a common radio frequency (RF) port; four mixer devices, each comprising an intermediate frequency (IF) port, an RF port and an local oscillator (LO) port; and a fo...
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WO/2014/042277A1 |
An amplifier circuit that amplifies a carrier wave that a transmitting and receiving part has received, and includes a superimposition wave generation part that generates a superimposition wave to be superimposed onto the carrier wave; a...
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WO/2014/042689A1 |
A frequency converting circuit including: an impedance network having a first pair of terminals and operable to provide a first signal in a frequency band centered at a first frequency f1; an output network having second and third pairs ...
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WO/2014/037027A1 |
A sub-harmonic mixer (200) comprising first (215) and second (220) input ports, and an output port (225), and arranged to output products of signals applied at the input ports. The sub-harmonic mixer (200) comprises a first stage (205) a...
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WO/2014/035342A1 |
A harmonic frequency conversion circuit, including an inverter, and a first and second transistor, may include at least one of a resistor or a capacitor connected between a first terminal and a second terminal. The inverter comprises of ...
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WO/2014/030350A1 |
[Problem] When a harmonic mixer circuit is used for a transmitter, it is difficult to sufficiently suppress generation of unwanted waves, and the properties of the harmonic mixer circuit are degraded. [Solution] This harmonic mixer circu...
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WO/2014/018905A1 |
A circuit used in a mixer configured to receive a signal made up of a relatively small modulation signal and a relatively large carrier signal is described. The mixer includes multiple switches. A balancing circuit configured to receive ...
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WO/2014/015277A2 |
Circuits and methods for performing harmonic rejection mixing are provided. In some embodiments, the circuit comprises: a first amplifier that amplifies a received signal at a first gain; a second amplifier that amplifies the received si...
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WO/2014/008319A1 |
Methods and systems for improved cross polarization rejection and tolerating of coupling between satellite signals may comprise receiving radio frequency (RF) signals on a chip, where the RF signals comprising a desired signal and at lea...
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WO/2014/008233A1 |
Embodiments include a novel receiver architecture to optimize receiver performance in the presence of interference. In various embodiments, the presence of interference is detected, and the relative frequency location of the interference...
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WO/2014/003613A1 |
The noise response in a passive mixer circuit is improved by discharging the switching transistors in the mixer circuit in an appropriate time slot prior to activation. In addition to improving the noise response, tilt in conversion gain...
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WO/2013/189546A1 |
The invention relates to a discrete-time filter for filtering an input signal, the discrete-time filter comprising a switched capacitor network, the switched capacitor network comprising an input (102) and an output (104), a number of sw...
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WO/2013/187037A1 |
A mixer (1) according to the present invention is provided with first and fourth switch transistors (M1, M4), of a first conductivity type, that are connected between first and second input terminals (MIXINP, MIXINN) and first and second...
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WO/2013/183225A1 |
A harmonic rejection mixer comprising mixer units (112-118) comprising switching units (98-104) and variable gm units (105-111). The output current from the mixer units (112-118) drives a common load (119). The variable gm units (105-111...
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WO/2013/175681A1 |
In order to provide a direction conversion receiver that aims to improve signal-to-noise and distortion ratio (SNDR) and improve flicker noise characteristics without increasing chip cost or degrading distortion characteristics, the pres...
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WO/2013/163351A1 |
A phased array architecture configured for current reuse is disclosed. In an exemplary embodiment, an apparatus includes a current mode phase rotator (PR) module configured to generate phase shifted in-phase (I) and quadrature-phase (Q) ...
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WO/2013/156507A1 |
In one aspect, the present invention exploits the termination conductances (18, 22) of a time-discrete harmonic mixer (10) as another degree of freedom in configuring the mixer (10) to meet given harmonic rejection performance requiremen...
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WO/2013/156305A1 |
It is disclosed a mixer arrangement for complex signal mixing comprising a first harmonic rejection mixer, and a second harmonic rejection mixer. Each of the harmonic rejection mixers comprises mixer unit cells wherein each mixer unit ce...
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WO/2013/158924A1 |
An integrated circuit is described. The integrated circuit includes millimeter-wavelength transceiver circuitry. The millimeter-wavelength transceiver circuitry includes a local oscillator that generates a millimeter-wavelength oscillato...
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WO/2013/156060A1 |
A phase detector providing linear phase information from -180° to +180° is disclosed. The phase detector comprises frequency divider and phase shifter and a mixer circuit, frequency divider and phase shifter has an output port connecte...
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WO/2013/157177A1 |
A mixer (1) comprising: first to fourth switch transistors (M1-M4) each connected between first and second input terminals (Vinp, Vinn) and first and second output terminals (Vap, Van); and first and second buffers (10, 11) that receive ...
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WO/2013/153087A1 |
A receiver (100) has an ln-phase path (l-path) (101) that delivers a digital l-path signal ϰ 1 (t) and a Quadrature path (Q-path) (103) that delivers a digital Q-path signal ϰ Q (t). The receiver (100) includes a compensation stage (12...
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WO/2013/152022A1 |
A method and apparatus for use in a wireless communication system including compressed sensing for wide spectrum scanning is disclosed. A single or multiple parallel compressed scanners use compressed sensing for wide spectrum scanning, ...
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WO/2013/147581A1 |
An apparatus and method for reducing FM audio artifacts in a receiver are provided. A direct conversion radio frequency (RF) receiver converts an analog FM signal into a phase shifted digital low IF signal. A digital controller coupled t...
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WO/2013/147390A1 |
The demodulation device according to the present invention includes: a spin element outputting an oscillation signal; a phase controller that gives predetermined phase consonant characteristics to the spin element to allow the oscillatio...
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WO/2013/147897A1 |
In one embodiment of the invention, a low frequency converter is described that includes a first electrochemical capacitor to charge to an input voltage and a second electrochemical capacitor that is coupled to the first electrochemical ...
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WO/2013/113352A1 |
A transconductance mixer (400, 900, 10, 11) comprising a first (408, 408', 408'') and a second (412, 412', 412'') bipolar junction transistor connected to each other. The transconductance mixer comprises a first (205) and a second (210) ...
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WO/2013/113597A1 |
A down-conversion circuit (30) for a receiver circuit (10) is disclosed, the down- conversion circuit 30 comprises a first passive switching mixer (70) arranged to down-convert a received radio frequency, RF, signal with a first local os...
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WO/2013/116528A1 |
A receiver and a transceiver including a receiver are described. The receiver includes a first injection-locked oscillator having a first input configured to receive a BPSK signal and a second input configured to receive a first frequenc...
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WO/2013/113599A1 |
A down-conversion circuit (30) for a receiver circuit (10) is disclosed. It comprises a first mixer (70) arranged to down-convert an RF signal with a first LO signal (LO1), thereby generating a first down-converted signal. It further com...
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WO/2013/111565A1 |
Provided are a sampling mixer circuit and a receiver wherein the flexibility of positions at which the zero point and pole of a transfer function are set is high and wherein any desired filter characteristic can be easily formed. The sam...
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WO/2013/109937A1 |
A baseband filter and upconverter with configurable efficiency for use in wireless transmitters is disclosed. In an exemplary embodiment, an apparatus is provided that includes a baseband filter having configurable efficiency, and an upc...
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WO/2013/091351A1 |
A transconductance-enhancing passive frequency mixer comprises a transconductance amplification stage, a frequency mixing stage, and an output transresistance amplifier. The transconductance amplification stage has a pre-amplification tr...
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WO/2013/090561A1 |
A circuit includes a multiplier circuit including a mixer configured to multiply a first differential input signal and a second differential input signal. The mixer includes a plurality of transistors including control terminals. The con...
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WO/2013/085450A1 |
A heterodyne receiver structure comprises a frequency conversion block arranged to convert an incoming analogue radio frequency (RF) signal to an analogue intermediate frequency (IF) signal; a filter block arranged to filter said analogu...
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WO/2013/085602A1 |
Unpacking a variable number of data bits is provided. A structure includes an input port 15 operable to receive one or more input data units including a plurality of packed bits of data, each of the one or more input data units including...
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WO/2013/085966A1 |
A cascode common source and common gate LNAs operating at 60GHz are introduced and described. The cascode common source LNA is simulated to arrive at an optimum ratio of upper device width to the lower device width. The voltage output of...
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WO/2013/081825A1 |
An electronic circuit for converting higher-frequency output signals from a sensor into lower-frequency input signals for a discrete input wireless transmitter. The circuit includes a differential amplifier, a digital comparator, a digit...
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WO/2013/081197A1 |
The present invention relates to a low noise frequency converter capable of oscillating various frequencies according to the user's selection. The user selects at least one or more frequencies from among a plurality of frequencies. The l...
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WO/2013/079119A1 |
A sub-harmonic mixer (100, 200, 300,400) comprising a mixer circuit (105, 305, 405) with input ports (106, 107) for RF and LO signals, and an output port (108) for the product of the signals at the input ports, and an LO switching stage ...
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WO/2013/077507A1 |
An apparatus and a method of compensating for an I/Q imbalance in a direct up-conversion system prevents the performance of the system from being deteriorated by efficiently compensating for an I/Q timing skew, an I/Q phase imbalance, an...
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WO/2013/071156A1 |
Techniques for dynamically selecting a number of downconversion paths used in a variety of receiver, wideband receiver architectures, for example, zero-IF or low-IF. In an exemplary embodiment, a first downconversion path is configured t...
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WO/2013/060376A1 |
A receiver circuit (30), comprises an input balun circuit (32) comprising a balanced balun output (34) and being capable of receiving RF signals, an input amplification circuit (36) comprising a balanced amplifier input (38) and a balanc...
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WO/2013/063131A1 |
Devices communicate with one another over a wireless channel according to a signal strength of a signal transmitted over the wireless channel. Digital data captured at a source is transmitted over the wireless channel at a first quality ...
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WO/2013/038994A1 |
[Problem] The present invention provides a frequency converter having a plurality of mixers for adjusting the reception bandwidth in relation to mixers that use magnetoresistive effect elements to generate multiplicative signals. [Soluti...
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WO/2013/038993A1 |
[Problem] The main purpose of the present invention is to provide a mixer having a band-pass filter function for reception, and which is also able to remove large multiplication signals. [Solution] A magnetoresistive element (2) includes...
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WO/2013/038992A1 |
[Problem] To enable operation using low local power whilst avoiding reductions in multiplication signal output. [Solution] Provided is a frequency-converting device capable of obtaining resonant characteristics having a high Q value, obt...
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WO/2013/033840A1 |
A system and method are provided for extracting and demodulating one or more channels in a radio signal. The method includes receiving a first radio signal using a radio frequency front end, translating a first band of frequencies of the...
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WO/2013/031440A1 |
A semiconductor integrated circuit device and a high frequency power amplifier module capable of achieving a plurality of detection schemes in a small area are provided. For example, a log detection portion and a linear detection portion...
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WO/2013/023857A1 |
The invention relates to a method for detecting at least two amplitude-modulated transmission signals, each of which has a different frequency shift, in the same frequency channel, said transmission signals being contained in a received ...
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