首页 / 国际专利分类库 / 电学 / 基本电子电路 / 调制 / 幅度调制 / .载频或一个边带全部或部分被抑制的调制器(H03C1/28至H03C1/34,H03C1/46,H03C1/48优先)
序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
1 单边带混频器 CN00810317.8 2000-05-12 CN1360752A 2002-07-24 H·吉尔; G·格尔哈德; S·科奇
适合于位置节省地在同样半导体基片上集成的、用于射频信号的单边带混频器包含二个二边带混频器(3),其与相同的第一信号和与彼此相移90°的第二信号连接,以便从二个信号中形成各一个乘积信号,并包含一个加法节(7)用于把二个乘积信号叠加成为具有一个边带的输出信号。为了产生第一信号每个混频器(3)串接一个放大器(1),并且该放大器(1)具有经过交叉线路(11)与相同信号源连接的输入端。放大器(1)的信号源可以是前置放大器或也可以直接是单边带混频器的输入端。
2 具有自适应载波泄漏抑制的正交调制器 CN94113488.1 1994-12-28 CN1116375A 1996-02-07 詹姆斯·R·布劳杰特
一种载波泄漏抑制电路,其自适应地抑制调制具有同相和正交基带信号的载波信号的信号处理装置中的载波泄漏以产生射频(RF)输出信号。该电路通过在调制载波信号前赋予同相基带信号第一标志、正交基带信号第二标志来工作。RF输出信号中的同相和正交载波泄漏分量通过分别使RF输出信号与第一和第二标志相关被分离并测量。根据测量结果产生同相补偿和正交补偿。
3 开关电容型带通前馈sigma-delta调制器 CN201510867512.2 2015-12-01 CN105406822A 2016-03-16 曹天霖; 韩雁; 刘义冬; 张世峰; 陈雅雅
发明公开了一种带通前馈sigma-delta调制器,包括三个级联的开关电容谐振器、加法器模块、量化器模块、反馈DAC模块。本sigma-delta调制器采用了前馈型结构取代常见的反馈型结构,使谐振器的输入端只包含量化噪声分量,不包含输入信号分量,从而降低了谐振器的输入电平,提高了整体sigma-delta调制器的环路稳定性。因此本发明提出的带通前馈sigma-delta调制器适合于高阶单环结构的模数转换器,并且降低了调制器电路对运放等模拟子电路的要求。由仿真结果得,本发明提出的带通前馈sigma-delta调制器在3.3V电源电压,时钟频率800KHz,中心频率200KHz,信号带宽5KHz的条件下达到96.8dB信号失真比和106dB的动态范围,满足高精度陀螺仪加速传感器等微机械传感器系统的应用要求。
4 数字调制器和与之相关联的数模转换技术 CN201110034236.3 2011-02-01 CN102143110A 2011-08-03 E.瓦格纳
发明涉及数字调制器和与之相关联的数模转换技术。在此公开的一些实施例涉及发射机。该发射机包括数字调制器,所述数字调制器适于基于数据的多比特表示和载波的多比特表示来提供数字调制的RF信号数模转换器(DAC),适于基于数字调制的RF信号来生成模拟调制的RF信号。谐振电路,耦合到DAC的输出端并且适于从模拟调制的RF信号中滤出不希望的频率分量。
5 跳频通信用IC CN200710100865.5 2007-04-20 CN101060343B 2011-01-26 杉山由一; 生田功; 胜部勇作
发明提供一种跳频通信技术,能够高速切换具有超宽频带528MHz带宽的多个信号,还能够任意设定、切换频带中心频率及频带数。无线收发装置(100)具有高速切换超宽频带信号的UWB方式的跳频通信功能。本装置,控制局部振荡电路(1)中的SSB混频器(31),并且切换DDS(30)的频率,由此进行高速跳频。本装置在DDS(30)中设定NCO数据(150),切换输出的四相正交信号(40),通过相位切换开关(34)的控制,来切换SSB混频器(31)的输入端子(70)的信号输入。从SSB混频器(31)的输出端子中,输出将第1和第2四相正交信号混合后的和成分或差成分中的某一个。
6 跳频通信用IC CN200710100865.5 2007-04-20 CN101060343A 2007-10-24 杉山由一; 生田功; 胜部勇作
发明提供一种跳频通信技术,能够高速切换具有超宽频带528MHz带宽的多个信号,还能够任意设定、切换频带中心频率及频带数。无线收发装置(100)具有高速切换超宽频带信号的UWB方式的跳频通信功能。本装置,控制局部振荡电路(1)中的SSB混频器(31),并且切换DDS(30)的频率,由此进行高速跳频。本装置在DDS(30)中设定NCO数据(150),切换输出的四相正交信号(40),通过相位切换开关(34)的控制,来切换SSB混频器(31)的输入端子(70)的信号输入。从SSB混频器(31)的输出端子中,输出将第1和第2四相正交信号混合后的和成分或差成分中的某一个。
7 EINSEITENBANDMISCHER EP00935443.2 2000-05-12 EP1183775A1 2002-03-06 GILL, Hardial; GERHARD, Gregor; KOCH, Stefan
The invention relates to a single sideband mixer for radio frequency signals which can be integrated on a uniform semiconductor substrate in a space-saving manner. The inventive single sideband mixer comprises two double-sideband mixers (3) which are switched with identical first signals and with phase quadrature second signals in order to form a product signal from the two signals. The single sideband mixer also comprises an adder (7) for superimposing the two product signals to form an output signal with a sideband. An amplifier (1) is connected in incoming circuit to each mixer (3) in order to generate the first signal, and the amplifiers (1) have inputs which are connected to the same signal source via a forked line (11). The signal source of the amplifiers (1) can be a pre-amplifier (9) or can be an input of the single sideband mixer directly.
8 Ic for frequency hopping communication JP2006117645 2006-04-21 JP2007295066A 2007-11-08 SUGIYAMA YOSHIICHI; IKUTA ISAO; KATSUBE YUSAKU
<P>PROBLEM TO BE SOLVED: To provide a technology of frequency hopping communication in which a plurality of signals having a bandwidth of 528 MHz of super-wideband can be switched at high speed, and the central frequency of band and the number of bands can be set/switched arbitrarily. <P>SOLUTION: A wireless transmitter/receiver 100 has a frequency hopping communication function of UWB system for switching a super-wideband signal at high speed, and performs frequency hopping at high speed by switching the frequency of a DDS 30 together with control of an SSB mixer 31 in a local oscillation circuit 1. The wireless transmitter/receiver switches the four-phase orthogonal signal 40 of output by setting NCO data (150) in the DDS 30, and switches signal input of the input terminal 70 of the SSB mixer 31 through control of a phase change-over switch 34. Any one of the sum component or the difference component obtained by mixing first and second four-phase orthogonal signals is outputted from the output terminal of the SSB mixer 31. <P>COPYRIGHT: (C)2008,JPO&INPIT
9 JPS6216046B2 - JP11601478 1978-09-22 JPS6216046B2 1987-04-10 FUJISAKI HITOSHI
10 Carrier suppression modulating circuit JP9603879 1979-07-30 JPS5620309A 1981-02-25 ONODERA TAKEO
PURPOSE:To make it possible to minimize automatically the leakage of a carrier by constricting the heater resistance value of the indirectly-heated thermistor of a leakage adjusting circuit to a resistance value when a leakage carrier shows its minimum value. CONSTITUTION:While a carrier is supplied to input 11, a signal wave is supplied to input 12 and their outputs are supplied to modulating circuit 21. The output of circuit 21, after having a carrier leakage component selected by BPF22, is sent to and amplified by amplifier 23 up to a required level and then phase-compared to a carrier from input 11 by phase detector 24. Output Ec of detector 24 has a DC component compared to reference voltage Er by comparison amplifier 25, whose amplified output P is applied to the heater of the indirectly-heated thermistor of carrier leakage adjusting circuit 26, bringing its resistance under control. Here, the resistance value of the thermistor is constricted to a resistance value when the leakage carrier shows its minimum value, so that the carrier leakage can be minimized automatically.
11 JPS5050451A - JP9378374 1974-08-14 JPS5050451A 1975-05-06
12 Frequency hopping communication ic JP2006117645 2006-04-21 JP4800096B2 2011-10-26 勇作 勝部; 由一 杉山; 功 生田
13 Transmitter with a carrier suppression and dc offset reducing means JP51644097 1996-10-22 JPH10512133A 1998-11-17 エフ ウィルソン,ジョン
(57)【要約】 それぞれの周波数アップコンバート手段(28、30、32、34)とそれぞれの周波数アップコンバート手段の出を結合し、結合された信号を電力増幅手段(36、38)に供給する手段(35)とを有する少なくとも第一と第二の位相信号路(I,Q)からなる送信機。 フィードバックループが設けられ、それはパワー増幅手段の出力信号の一部分を得、それを第一と第二の位相フィードバック路に供給するカプラー(54)を有する。 フィードバック路のそれぞれは周波数ダウンコンバート手段(56、58、60)からなる。 線形化ループの周辺のフィードバックが周波数ダウンコンバート手段(56、58、60)の出力で発生したdcオフセットを変えることなくゼロに減少するときにそれぞれの周波数アップコンバート手段(28、30)の入力でdcオフセットを測定するために手段(42、52)が設けられる。 減算手段(20、22、68、70)は測定されたdcオフセットを線形化ループフィードバック誤差信号から減算する。
14 Wide band iq modulator provided with automatic rc/cr quadrature phase network JP20764894 1994-08-31 JPH07183929A 1995-07-21 MAAKASU KEI DATSUSHIRUBUA; ANDORIYUU EMU TEIITSUERU
PURPOSE: To generate the quadrature phase of equal amplitude over wide range frequencies by providing a quadrature phase network for responding to a control signal depending on frequency. CONSTITUTION: An RF signal 24 is impressed to CR/RC phase shift networks (NW) 48 and 49. The NW 48 and 49 respectively output quadrature phase shift signals ϕi67 and ϕq66 through CR/RC phase shifters 61 and 60 in response to analog control signals Vci50 and Vcq51. The signals ϕi and ϕq are inputted to a linear amplifier 52 and level signals Di55 and Dq59 are outputted by level detectors 55 and 58. The signals Di55 and Dq59 control the NW 48 and 49 so as to turn the difference of Di55 and Dq59 to zero through a servo system for driving the signals Vci50 and Vcq51. This control can be performed by impressing the signals Vci and Vcq to the gate of MESFET consisting of variable resistors Ri65 and Rq62 at the phase shifters 61 and 60. Thus, the quadrature phase shift of equal amplitude can be provided in spite of frequency.
15 JPS50153855A - JP5443375 1975-05-07 JPS50153855A 1975-12-11
16 TRANSMITTER COMPRISING CARRIER SUPPRESSION AND DC OFFSET REDUCTION MEANS EP96932784.0 1996-10-22 EP0803147A1 1997-10-29 WILSON, John, F.
A transmitter comprising at least first and second phase related signal paths (I, Q), having respective frequency up-converting means (28, 30, 32, 34), means (35) for combining the output of the respective frequency up-converting means and for supplying the combined signal to power amplifying means (36, 38). A feedback loop is provided which has a coupler (54) for deriving a portion of the power amplifier output signal and supplying it to first and second phase related feedback paths. Each of the feedback paths comprises frequency down-converting means (56, 58, 60). Means (42 to 52) are provided for measuring the dc offsets at the respective inputs of the frequency up-converting means (28, 30) when the feedback around the linearisation loop is reduced to zero without altering the dc offsets produced at the outputs of the frequency down-converting means (56, 58, 60). Subtracting means (20, 22, 68, 70) subtract the measured dc offsets from the feedback loop error signals.
17 Leistungsregelanordnung EP90108970.6 1990-05-12 EP0401545B1 1994-07-27 Esprester, Ralf, Dr.-Ing.; Kombrink, Friedemann, Ing.-grad.
18 Système de transmission à modulation d'amplitude à porteuse supprimée, conservant la polarité du signal transmis EP90460045.9 1990-12-07 EP0433198B1 1994-04-27 Lanoiselée, Marc
19 Leistungsregelanordnung EP90108970.6 1990-05-12 EP0401545A1 1990-12-12 Esprester, Ralf, Dr.-Ing.; Kombrink, Friedemann, Ing.-grad.

Bei einer Regelanordnung für die Leistungsendstufe (E) eines frequenzvariablen Senders, welche die Amplituden der auf der Antennenzuleitung vorlaufenden und rücklaufenden Wel­len mißt und zur Ableitung eines Regelsignals auswertet, werden aus dem Sendesignal vor der Endstufe zwei gleich­frequente um 90° gegeneinander phasenverschobene Überla­gungssignale abgeleitet (SI, SQ). Die mittels eines Richtkopplers (RK) aus der Antennenzuleitung (L) ausgekoppelten, den vorlaufenden und rücklaufenden Wellen proportionalen Signalspannungen werden in Quadraturamplitudendemodulatoranordnungen (DQR, DQV) mit den beiden Überlagerungssignalen umgesetzt und aus den niederfrequenten Anteilen werden Vorlauf- und Rücklaufsi­gnale zur Ableitung eines Regelsignals für den Verstär­kungsfaktor der Leistungsendstufe gewonnen. Fremdsignale auf der Antennenzuleitung führen nicht zu einer Reaktion des Regelkreises.

20 PROCÉDÉ ET DISPOSITIF DE MODULATION DE PHASE D'UNE ONDE PORTEUSE ET APPLICATION À LA DÉTECTION DE SIGNAUX NUMÉRIQUES MULTI-NIVEAUX CODÉS EN PHASE EP16705244.8 2016-01-29 EP3254423A1 2017-12-13 GLATTLI, Denis, Christian; ROULLEAU, Séverin, Preden
The method for phase modulation of a carrier wave involves creating a set of signals s h(t) constituted by a wave of carrier frequency f c of which the phase φ(t) = hφ 0(t) is modulated in time t such that s h(t) = cos(2πf ct+ hφ 0(t)), where h is an integer and where φ 0(t) = 2arctan((t - t 0)/w 0). The modulation corresponds to a single-phase pulse centred at time t 0 with positive characteristic duration w 0 and incrementing the phase of the signal s h(t) by the quantity h2π, in such a way as to directly generate a single-sideband frequency spectrum. The carrier wave can be electromagnetic or acoustic. The method can be applied, in particular, to the transport of a piece of binary information by single sideband phase encoding, to the generation of orthogonal single-sideband signals, to the detection of multi-level phase-encoded digital signals having a single sideband, to the in-phase and out-of-phase transmission of phase-encoded binary signals having a single sideband, and to a mixed amplitude/phase single-sideband modulation.
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