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公开(公告)号：US20050259908A1
公开(公告)日：2005-11-24
申请号：US10519771
申请日：2002-06-21
Applicant: Silvano Donati , Tiziana Tambosso
Inventor： Silvano Donati , Tiziana Tambosso
CPC classification number: H03C7/025
Abstract: The present invention relates to an integrated device for transmitting and/or receiving information by means of millimetric waves (wavelength 1 mm-10 mm), i.e. electromagnetic waves corresponding to frequencies of 30 to 300 GHz. In particular, the present invention relates to a device constituted by an optoelectronic integrated circuit that interfaces with an antenna able to transmit and/or receive millimetre wave signals. In turn the device, associated to the appropriate biasing and control electronics, constitutes a transceiver module to be used in a wireless or mobile radio local area network. rhe transmitter circuit is constituted by a laser in passive mode-locking. The optical signal thus generated is amplified, modulated and converted into radio frequency signal through a guide photodiode, to be lastly transmitted through an antenna. The receiver circuit is constituted by an antenna, a photodiode and a laser identical to that of the transmitter. The photodiode, by means of appropriate bias, performs a dual function of optical and electrical mixer. In particular, the first function converts to electrical frequency the optical beat signal between two modes generated by the laser, the second function takes place by means of the non linear voltage/current characteristic of the photodiode and allows to bring back to base band the received signal, thereby allowing to extract the modulating signal from the weak signal received through the antenna.
Abstract translation: 本发明涉及一种用于通过毫米波（波长1mm-10mm）发送和/或接收信息的集成装置，即对应于30至300GHz的频率的电磁波。 特别地，本发明涉及一种由与能够传输和/或接收毫米波信号的天线相连接的光电集成电路构成的器件。 反过来，与适当的偏置和控制电子装置相关联的装置构成在无线或移动无线电局域网中使用的收发器模块。 变送器电路由被动锁模式的激光器构成。 由此产生的光信号被放大，调制并通过导光光电二极管转换成射频信号，最后通过天线传输。 接收机电路由与发射机相同的天线，光电二极管和激光器构成。 光电二极管通过适当的偏压执行光学和电动混合器的双重功能。 特别地，第一功能将激光器产生的两种模式之间的光学差拍信号转换为电频率，第二功能通过光电二极管的非线性电压/电流特性进行，并允许将接收到的带 信号，从而允许从通过天线接收的弱信号中提取调制信号。
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2.发明授权Variable bi-phase modulator circuits and variable resistors for microwave signals 失效用于微波信号的可变双相调制器电路和可变电阻
公开(公告)号：US5081432A
公开(公告)日：1992-01-14
申请号：US626079
申请日：1990-12-11
Applicant: Liam M. Devlin , Brian J. Minnis
Inventor： Liam M. Devlin , Brian J. Minnis
Abstract: A variable bi-phase modulator circuit for microwave signals includes a quadrature power divider (1) having signal input and output ports (2 and 3) and two control ports (4 and 5), and two variable resistors each having an input port (11). Each of the two variable resistors includes first and second microwave field-effect transistors (F1 and F2), the drains of which are coupled together via an intermediate resistor (R). These resistors can be formed using microwave monolithic integrated circuit technology and can have very good impedance characteristics. The input port (11) of the variable resistor has a connection to the intermediate resistor (R) and to the drain of the first transistor (F2). Each transistor is connected with zero dc bias between its source and drain and has a channel resistance which changes with change in gate voltage (VG1, VG2). A shunt stub (L1, L2) is connected to the drain of each transistor (F1, F2) to at least partially compensate at the frequency of operation of the transistor for the source to drain capacitance and for shifts in reference plane due to changes in the gate voltage of each transistor.
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公开(公告)号：US5006811A
公开(公告)日：1991-04-09
申请号：US472972
申请日：1990-01-31
Applicant: Dennis A. Kruger
Inventor： Dennis A. Kruger
CPC classification number: H03C7/025 , H03D9/02 , H03D9/0675 , H03D2200/009 , H03D7/125 , H03D7/14
Abstract: A method and apparatus for modulating or demodulating a radio frequency (RF) signal which incorporates a pair of quadrature couplers. In demodulating an RF signal, an LO signal and the RF signal are each phase shifted -90 degrees by the couplers. The RF and LO signals are mixed as are the phase-shifted RF and LO signals. Each mixed signal is low-pass filtered and the filtered signals are added thereby producing an intermediate frequency signal.
Abstract translation: 一种用于调制或解调包含一对正交耦合器的射频（RF）信号的方法和装置。 在解调RF信号时，LO信号和RF信号由耦合器各自相差90度。 RF和LO信号与相移的RF和LO信号一样混合。 每个混合信号被低通滤波，并且滤波后的信号相加，从而产生中频信号。
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公开(公告)号：US20150229272A1
公开(公告)日：2015-08-13
申请号：US14175111
申请日：2014-02-07
Applicant: QUALCOMM Incorporated
Inventor： Joonhoi Hur , Paul Joseph Draxler , Jeremy Darren Dunworth , Peter D. Heidmann
CPC classification number: H03C7/025 , H04L27/22 , H04L27/361
Abstract: Exemplary embodiments are related to a tri-phase digital polar modulator. A device may include a modulator configured to generate a primary phase modulated signal including the most significant bits (MSBs) of a modulated signal, a leading phase modulated signal including a first least significant bits (LSB) of the modulated signal, and a lagging phase modulated signal including a second LSB of the modulated signal. The device may also include a combination unit configured to add the primary phase modulated signal, the leading phase modulated signal, and the lagging phase modulated signal
Abstract translation: 示例性实施例涉及三相数字极化调制器。 设备可以包括调制器，其被配置为生成包括调制信号的最高有效位（MSB）的主相位调制信号，包括调制信号的第一最低有效位（LSB）的前置相位调制信号和滞后相位 调制信号包括调制信号的第二LSB。 该装置还可以包括组合单元，其被配置为将主相位调制信号，前置相位调制信号和滞后相位调制信号
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公开(公告)号：US5159295A
公开(公告)日：1992-10-27
申请号：US714620
申请日：1991-06-13
Applicant: Bernard J. Reits
Inventor： Bernard J. Reits
CPC classification number: H03C7/025
Abstract: A microwave vector modulator (4) of the reflective type is used to match a microwave load. The adjustable reflection of the vector modulator is obtained by semiconducting surfaces (18, 19, 20, 21), illuminated by light-emitting means (24, 25, 26, 27).
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Patent Agency Ranking
公开(公告)号：US5039959A
公开(公告)日：1991-08-13
申请号：US586635
申请日：1990-09-20
Applicant: James P. Young
Inventor： James P. Young
CPC classification number: H03C7/025 , H04L27/2035
Abstract: A phase switching circuit adapted for high frequency applications which is operative for shifting the phase of an input signal either by 0.degree. or 180.degree. in response to a control signal. The switching circuit includes two FETs which are coupled together so as to operate in combination to produce the desired phase switching action. The first FET comprises a grounded gate amplifier while the second FET may be configured either as an inverting amplifier or a source follower by changing the polarity of the power supply voltage applied to its output terminal. The two FETs operate in a complimentary fashion so as to provide relatively constant amounts of phase shift and gain.
Abstract translation: 适用于高频应用的相位切换电路，其用于响应于控制信号将输入信号的相位移动0°或180°。 开关电路包括两个耦合在一起的FET，以便组合操作以产生期望的相位切换动作。 第一FET包括接地栅极放大器，而第二FET可以通过改变施加到其输出端子的电源电压的极性而被配置为反相放大器或源极跟随器。 这两个FET以互补的方式工作，以便提供相对恒定量的相移和增益。
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公开(公告)号：US5006823A
公开(公告)日：1991-04-09
申请号：US425815
申请日：1989-10-23
Applicant: Michel-Claude Baril , Dominique Rimbert
Inventor： Michel-Claude Baril , Dominique Rimbert
CPC classification number: H03C7/025
Abstract: Disclosed is a microwave phase shifter which is capable, in response to a control signal, of generating either a phase shift that is substantially zero or a phase shift that is substantially equal to .pi.. It comprises a FET that is preferably symmetrical and works in an amplifier assembly. Low-frequency switching-over means make it possible, by reversing the biases at the source and the drain, to invert the FET. This inverting causes a phase shift by .pi. in the microwave signal taken at the output of the circuit.
Abstract translation: 公开了一种微波移相器，其能够响应于控制信号而产生基本为零的相移或基本上等于pi的相移。 它包括优选对称的FET并且在放大器组件中工作。 低频切换装置可以通过反转源极和漏极的偏置来反转FET。 该反相引起在电路输出端取得的微波信号中的π相移。
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公开(公告)号：US2911601A
公开(公告)日：1959-11-03
申请号：US50828355
申请日：1955-05-13
Applicant: GUNN JOHN B , HOGARTH CYRIL A
Inventor： GUNN JOHN B , HOGARTH CYRIL A
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9.发明授权
公开(公告)号：US2772377A
公开(公告)日：1956-11-27
申请号：US24424851
申请日：1951-08-29
Applicant: BENJAMIN KAZAN
Inventor： BENJAMIN KAZAN
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公开(公告)号：US2458579A
公开(公告)日：1949-01-11
申请号：US59036745
申请日：1945-04-26
Applicant: BELL TELEPHONE LABOR INC
Inventor： FELDMAN CARL B H
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