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1. CN103155407 - Wideband temperature compensated resonator and wideband vco

Office Chine
Numéro de la demande 201180048097.8
Date de la demande 05.10.2011
Numéro de publication 103155407
Date de publication 12.06.2013
Numéro de délivrance 103155407
Date de délivrance
Type de publication A
CIB
H03B 5/12
HÉLECTRICITÉ
03CIRCUITS ÉLECTRONIQUES FONDAMENTAUX
BPRODUCTION D'OSCILLATIONS, DIRECTEMENT OU PAR CHANGEMENT DE FRÉQUENCE, À L'AIDE DE CIRCUITS UTILISANT DES ÉLÉMENTS ACTIFS QUI FONCTIONNENT D'UNE MANIÈRE NON COMMUTATIVE; PRODUCTION DE BRUIT PAR DE TELS CIRCUITS
5Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée
08Eléments déterminant la fréquence comportant des inductances ou des capacités localisées
12l'élément actif de l'amplificateur étant un dispositif à semi-conducteurs
H03L 1/02
HÉLECTRICITÉ
03CIRCUITS ÉLECTRONIQUES FONDAMENTAUX
LCOMMANDE AUTOMATIQUE, DÉMARRAGE, SYNCHRONISATION OU STABILISATION DES GÉNÉRATEURS D'OSCILLATIONS OU D'IMPULSIONS ÉLECTRONIQUES
1Stabilisation du signal de sortie du générateur contre les variations de valeurs physiques, p.ex. de l'alimentation en énergie
02contre les variations de température uniquement
CPC
H03L 1/025
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
1Stabilisation of generator output against variations of physical values, e.g. power supply
02against variations of temperature only
022by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature
023by using voltage variable capacitance diodes
025and a memory for digitally storing correction values
H03B 5/04
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
5Generation of oscillations using amplifier with regenerative feedback from output to input
02Details
04Modifications of generator to compensate for variations in physical values, e.g. power supply, load, temperature
H03B 5/1212
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
5Generation of oscillations using amplifier with regenerative feedback from output to input
08with frequency-determining element comprising lumped inductance and capacitance
12active element in amplifier being semiconductor device
1206using multiple transistors for amplification
1212the amplifier comprising a pair of transistors, wherein an output terminal of each being connected to an input terminal of the other, e.g. a cross coupled pair
H03B 5/1228
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
5Generation of oscillations using amplifier with regenerative feedback from output to input
08with frequency-determining element comprising lumped inductance and capacitance
12active element in amplifier being semiconductor device
1228the amplifier comprising one or more field effect transistors
H03B 5/1243
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
5Generation of oscillations using amplifier with regenerative feedback from output to input
08with frequency-determining element comprising lumped inductance and capacitance
12active element in amplifier being semiconductor device
1237comprising means for varying the frequency of the generator
124the means comprising a voltage dependent capacitance
1243the means comprising voltage variable capacitance diodes
H03B 5/1265
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
5Generation of oscillations using amplifier with regenerative feedback from output to input
08with frequency-determining element comprising lumped inductance and capacitance
12active element in amplifier being semiconductor device
1237comprising means for varying the frequency of the generator
1262the means comprising switched elements
1265switched capacitors
Déposants Qualcomm Incorporated
Inventeurs Liu Li
Narathong Chiewcharn
Mandataires li xiaofang
Données relatives à la priorité 12897918 05.10.2010 US
Titre
(EN) Wideband temperature compensated resonator and wideband vco
(ZH) 宽带温度补偿谐振器和宽带VCO
Abrégé
(EN)
A resonator of a VCO includes a fine tuning main varactor circuit, an auxiliary varactor circuit, and a coarse tuning capacitor bank circuit coupled in parallel with an inductance. The main varactor circuit includes a plurality of circuit portions that can be separately disabled. Within each circuit portion is a multiplexing circuit that supplies a selectable one of either a fine tuning control signal (FTAVCS) or a temperature compensation control signal (TCAVCS) onto a varactor control node within the circuit portion. If the circuit portion is enabled then the FTAVCS is supplied onto the control node so that the circuit portion is used for fine tuning. If the circuit portion is disabled then the TCAVCS is supplied onto the control node so that the circuit portion is used to combat VCO frequency drift as a function of temperature. How the voltage of the TCAVCS varies with temperature is digitally programmable.

(ZH)

VCO的谐振器包括与电感并联的微调主变容管电路、辅助变容管电路、以及粗调电容器组电路。该主变容管电路包括多个可分开地禁用的电路部分。在每个电路部分内有复用电路,该复用电路将微调控制信号(FTAVCS)或温度补偿控制信号(TCAVCS)中可选择的一个供应至该电路部分内的变容管控制节点上。若该电路部分被启用,则该FTAVCS被供应至该控制节点上,从而该电路部分被用于微调。如果该电路部分被禁用,则该TCAVCS被供应至该控制节点上,从而该电路部分被用于对抗归因于温度的VCO频率漂移。该TCAVCS的电压随温度如何变化是数字可编程的。