专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5929702A Method and apparatus for high efficiency high dynamic range power amplification 失效
标题翻译：高效率高动态范围功率放大的方法和装置
公开(公告)号：US5929702A
公开(公告)日：1999-07-27
申请号：US980435
申请日：1997-11-28
申请人： Ronald Gene Myers , Kenneth Vern Buer , Frederick H. Raab
发明人： Ronald Gene Myers , Kenneth Vern Buer , Frederick H. Raab
IPC分类号： H03F1/02 , H03F3/217 , H03G3/20
CPC分类号： H03F1/0222 , H03F1/0277 , H03F3/2171 , H03F2200/102 , H03F2200/504
摘要： A method and apparatus for efficient power amplification of a high dynamic range signal includes an envelope detector (220), a multi-range modulator (270), and a power amplifier (260). The multi-range modulator (270) efficiently amplifies the envelope of the input signal by selecting a power source as a function of the amplitude of the input signal. Multi-range modulator (200) produces a pulsewidth modulated signal with a duty cycle and an amplitude. When the amplitude of the input signal rises above a reference, the duty cycle and the amplitude are modified so as to keep the multi-range modulator in an operating region of high efficiency.
摘要翻译：用于高动态范围信号的有效功率放大的方法和装置包括包络检测器（220），多范围调制器（270）和功率放大器（260）。多范围调制器（270）通过根据输入信号的幅度选择电源来有效地放大输入信号的包络。多范围调制器（200）产生具有占空比和幅度的脉宽调制信号。当输入信号的幅度上升到高于参考值时，修改占空比和幅度，以便将多范围调制器保持在高效率的操作区域中。

2. 发明授权

US5831476A Voltage-tuned millimeter-wave amplifier and method for tuning 失效
标题翻译：电压调谐毫米波放大器和调谐方法
公开(公告)号：US5831476A
公开(公告)日：1998-11-03
申请号：US753817
申请日：1996-12-02
申请人： Kenneth Vern Buer , John Holmes , David Warren Corman
发明人： Kenneth Vern Buer , John Holmes , David Warren Corman
IPC分类号： H03F3/193
CPC分类号： H03F3/193
摘要： A method (140) for tuning millimeter-wave FET amplifiers (20) during manufacture, through the application (144) of a gate bias voltage (52) so as to tune the FET (22) of the amplifier (20) to match an input circuit (24), and through the application (146) of a drain bias voltage (74) so as to tune the FET (22) of the amplifier (20) to match an output circuit (26), then measuring (150) the frequency response of the amplifier (20). This tuning method (140) is repeated (152) until a predetermined frequency response has been achieved. Once achieved, the predetermined frequency response is realized (154) by permanently fixing the gate bias voltage (52) and the drain bias voltage (74) at the determined values. This iterative method (140) of tuning amplifiers (20) is then repeated for all amplifiers (20) to be tuned.
摘要翻译：一种用于在制造期间通过栅极偏置电压（52）的应用（144）来调谐毫米波FET放大器（20）的方法（140），以便调谐放大器（20）的FET（22）以匹配输入电路（24），并通过漏极偏置电压（74）的应用（146），以调谐放大器（20）的FET（22）以匹配输出电路（26），然后测量（150）放大器（20）的频率响应。重复该调谐方法（140）（152），直到达到预定的频率响应。一旦实现，通过将栅极偏置电压（52）和漏极偏置电压（74）永久固定在所确定的值来实现预定的频率响应（154）。然后对所有放大器（20）进行调谐的这种迭代方法（140）的调谐放大器（20）被重复。

3. 发明授权

US5712593A Linear power amplifier with distortion detection 失效
标题翻译：线性功率放大器，具有失真检测
公开(公告)号：US5712593A
公开(公告)日：1998-01-27
申请号：US596533
申请日：1996-02-05
申请人： Kenneth Vern Buer , David Warren Corman , Bill Tabano Agar, Jr.
发明人： Kenneth Vern Buer , David Warren Corman , Bill Tabano Agar, Jr.
IPC分类号： H03G3/30 , H03G3/20
CPC分类号： H03G3/3042
摘要： A power amplifier (10) suitable for satellite cellular communication systems provides highly efficient linear amplification of noise-like RF signals that have multiple carriers spread over a large instantaneous bandwidth. The amount of distortion present in the output is detected (14, 16, 18) and a feedback signal is provided to control the bias point of the active devices. As drive levels increase, the increased harmonic distortion power detected causes the power amplifier bias to increase thus reducing distortion. The control circuit (20) continually re-biases the power amplifier (12) for maximum efficiency for a predetermined level of distortion. The control circuit (20) may be adjusted to maximize efficiency while maintaining an allowable distortion level over the entire dynamic range of the devices.
摘要翻译：适用于卫星蜂窝通信系统的功率放大器（10）提供了具有多个载波在大的瞬时带宽上扩展的类噪声RF信号的高效线性放大。检测输出中出现的失真量（14,16,18），并提供反馈信号来控制有源器件的偏置点。当驱动电平增加时，检测到的增加的谐波失真功率导致功率放大器偏置增加，从而减少失真。控制电路（20）为了达到预定的失真水平而最大限度地重新偏置功率放大器（12）。可以调整控制电路（20）以最大化效率，同时在整个设备的整个动态范围内保持允许的失真水平。

4. 发明授权

US6049707A Broadband multicarrier amplifier system and method using envelope elimination and restoration 失效
标题翻译：宽带多载波放大器系统及使用包络消除和恢复的方法
公开(公告)号：US6049707A
公开(公告)日：2000-04-11
申请号：US922055
申请日：1997-09-02
申请人： Kenneth Vern Buer , Dean Lawrence Cook
发明人： Kenneth Vern Buer , Dean Lawrence Cook
IPC分类号： H04B1/04 , H04K1/02 , H04B11/12
CPC分类号： H04B1/0483
摘要： An amplifier system (100) for transmitting wideband multicarrier communication signals in a satellite communication system uses wideband envelope elimination and restoration amplifiers (200). The system upconverts channelized IF signals to provide a wideband multicarrier RF output signal between 20 and 30 GHz having a bandwidth between 100 and 200 MHz.
摘要翻译：用于在卫星通信系统中发送宽带多载波通信信号的放大器系统（100）使用宽带包络消除和恢复放大器（200）。该系统将信道化的IF信号上变频，以提供在20和30GHz之间的宽带多载波RF输出信号，带宽在100MHz与200MHz之间。

5. 发明授权

US5949312A Suspended monolithic microwave integrated circuit and method of manufacture 失效
标题翻译：悬挂式单片微波集成电路及制造方法
公开(公告)号：US5949312A
公开(公告)日：1999-09-07
申请号：US961234
申请日：1997-10-30
申请人： Kenneth Vern Buer , David Warren Corman , Deborah Sue Dendy , James Roger Clark, II
发明人： Kenneth Vern Buer , David Warren Corman , Deborah Sue Dendy , James Roger Clark, II
IPC分类号： H01L23/66 , H01P3/08
CPC分类号： H01L23/66 , H01L2924/0002 , H01L2924/3011
摘要： A MMIC for providing a suspended transmission medium, comprising a MMIC chip, an upper ground plane overlying and spaced from critical circuitry and a lower ground plane underlying and spaced from the critical circuitry. The upper and lower ground planes are spaced from the critical circuitry at electrically similar distances. The portion of the MMIC chip that has the critical circuitry is suspended over a recess in the housing floor.
摘要翻译：用于提供悬挂的传输介质的MMIC，包括MMIC芯片，覆盖并与关键电路相隔并且与关键电路隔开的下接地平面的上接地平面以及与关键电路相隔并间隔开的下接地平面。上下接地平面与电气相似的距离与关键电路隔开。具有关键电路的MMIC芯片的部分悬挂在壳体地板的凹部上。

6. 发明授权

US5844450A Integrated microstrip to suspend stripline transition structure and method of fabrication 失效
标题翻译：集成微带线悬挂带状线过渡结构和制造方法
公开(公告)号：US5844450A
公开(公告)日：1998-12-01
申请号：US611233
申请日：1996-03-05
申请人： Kenneth Vern Buer , David Warren Corman
发明人： Kenneth Vern Buer , David Warren Corman
IPC分类号： H01P3/08 , H01P5/02 , H01P5/08 , H01P11/00
CPC分类号： H01P11/00 , H01P5/08
摘要： An integrated microstrip (14) to suspended stripline (24) transition structure and method for fabricating the same provide a transition from microstrip (14) to suspended stripline (24) transmission line with minimal electrical discontinuity and insensitivity due to misalignment. A conductor (10) has a constant width, while gradually tapering voids (44,42) in ground planes (36, 38) provide a suspended stripline (24) transmission medium. The gradually tapering voids (44, 42) provide impedance transformation and minimize discontinuities during transition due to fabrication tolerances.
摘要翻译：悬挂带状线（24）过渡结构的集成微带线（14）及其制造方法提供从微带（14）到悬挂带状线（24）传输线的转变，由于不对准而具有最小的电不连续性和不敏感性。导体（10）具有恒定的宽度，而接地平面（36,38）中的逐渐变细的空隙（44,42）提供悬挂的带状线（24）传输介质。逐渐变细的空隙（44,42）提供了阻抗变换，并且由于制造公差而使过渡期间的不连续性最小化。

7. 发明授权

US06642559B1 Structure and process for improving high frequency isolation in semiconductor substrates 失效
标题翻译：用于改善半导体衬底中的高频隔离的结构和工艺
公开(公告)号：US06642559B1
公开(公告)日：2003-11-04
申请号：US09291494
申请日：1999-04-14
申请人： Kenneth Vern Buer , Anthony Francis Quaglietta , Allen Hanson
发明人： Kenneth Vern Buer , Anthony Francis Quaglietta , Allen Hanson
IPC分类号： H01L2980
CPC分类号： H01L21/76 , H01L21/7605 , H01L23/481 , H01L23/66 , H01L2924/0002 , H01L2924/3011 , H01L2924/00
摘要： An isolation structure for high frequency integrated circuits is a conductive material disposed over a region of active gallium arsenide substrate. The conductive material over the active region creates a lossy RF path to reduce undesired coupling between adjacent conductors. In one case, two RF signal lines (1,2) terminated at the same via pad (3) have weaker coupling than in prior art via structures due to the lossy RF structure disposed on isolating fractional portions (10,11) of the via pad (3). The isolating fractional portion (10,11) are intermediate terminating fractional portions (8,9) of the via pad (3) to which the signal lines (1,2) are connected. In another case, two parallel bias lines (12,13) are disposed over an active layer region (6) increasing the RF loss between them and advantageously reducing the RF coupling. The reduced RF coupling improves RF isolation and permits increased miniaturization.
摘要翻译：用于高频集成电路的隔离结构是设置在有源砷化镓衬底的区域上的导电材料。有源区域上的导电材料产生有损的RF路径以减少相邻导体之间的不期望的耦合。在一种情况下，由于设置在隔离通孔的分数部分（10,11）上的有损RF结构，在相同的通孔焊盘（3）处终止的两个RF信号线（1,2）具有比现有技术的通孔结构更弱的耦合，垫（3）。隔离分数部分（10,11）是信号线（1,2）连接到的通孔焊盘（3）的中间终端部分部分（8,9）。在另一种情况下，两个平行偏置线（12,13）设置在有源层区域（6）上，增加它们之间的RF损耗并且有利地减小RF耦合。减少的射频耦合可提高RF隔离度，并允许增加小型化。

8. 发明授权

US06295282B1 Calibrated low loss radio frequency switch matrix 有权
标题翻译：校准低损耗射频开关矩阵
公开(公告)号：US06295282B1
公开(公告)日：2001-09-25
申请号：US09127935
申请日：1998-08-03
申请人： Kenneth Vern Buer , David Warren Corman , Joel Lloyd Gross
发明人： Kenneth Vern Buer , David Warren Corman , Joel Lloyd Gross
IPC分类号： H04G7212
CPC分类号： H04Q3/521 , H04B7/2041 , H04Q2213/1302 , H04Q2213/13034 , H04Q2213/1304 , H04Q2213/13106 , H04Q2213/13291 , H04Q2213/13305 , H04Q2213/1334 , H04Q2213/13362
摘要： A system for switching radio frequency signals from an input side (5, FIG. 1 ) to an output side (6) can be used to combine multiple input signals to form a single output and to distribute a single input signal to form multiple outputs. Gain correction amplifiers (20, 25) are employed to adjust the overall gain of a particular column and row of the switch matrix which minimizes the effect of variations in the gain of the amplified switching elements (30) which perform the switching function. Resistive matching units (70, FIG. 2) provide coupling to and from the amplified switching elements (30) without substantially changing the characteristic impedance of the input and output paths.
摘要翻译：用于将射频信号从输入侧（5，图1）切换到输出侧（6）的系统可用于组合多个输入信号以形成单个输出并且分配单个输入信号以形成多个输出。增益校正放大器（20,25）用于调整开关矩阵的特定列和行的总体增益，其使执行开关功能的放大的开关元件（30）的增益变化的影响最小化。电阻匹配单元（图2中的70）提供耦合到放大的开关元件（30），而不会基本上改变输入和输出路径的特性阻抗。

9. 发明授权

US6091942A Self gain aligning circuit and method 失效
标题翻译：自增益对位电路及方法
公开(公告)号：US6091942A
公开(公告)日：2000-07-18
申请号：US755861
申请日：1996-12-02
申请人： Kenneth Vern Buer , David Warren Corman , Bill Tabano Agar, Jr.
发明人： Kenneth Vern Buer , David Warren Corman , Bill Tabano Agar, Jr.
IPC分类号： H03G3/30 , H01Q11/12 , H04B1/06
CPC分类号： H03G3/3036
摘要： An K-band amplifier circuit (10) with two samplers (12, 18) coupled to detectors (22, 26) that detect an input and an output RF signal level. These two reference signals are provided to a differential gain control circuit (24) which is coupled to one or more variable gain amplifier (VGA) (14) stages. The VGAs compensate for the gain of an entire chain of amplifiers (16). When the individual amplifier gains vary for any reason, (i.e., process, temperature effects or end of life degradation) the variation in gain causes higher or lower levels of detected output reference signals for a given RF input signal. The gain control circuit (24) drives the VGA (14) up or down as appropriate. By maintaining a constant offset in input and output reference control signals, the gain control circuit (24) drives the amplifier chain (16) to a constant gain.
摘要翻译：具有耦合到检测器（22,26）的两个采样器（12,18）的K波段放大器电路（10），其检测输入和输出RF信号电平。这两个参考信号被提供给耦合到一个或多个可变增益放大器（VGA）（14）级的差分增益控制电路（24）。 VGA补偿整个放大器链（16）的增益。当单个放大器增益由于任何原因（即，处理，温度效应或寿命终止退化）而变化时，增益的变化导致给定RF输入信号的检测到的输出参考信号的较高或较低水平。增益控制电路（24）适当地驱动VGA（14）上或下。通过保持输入和输出参考控制信号中的恒定偏移，增益控制电路（24）将放大器链（16）驱动到恒定增益。

10. 发明授权

US6091371A Electronic scanning reflector antenna and method for using same 失效
标题翻译：电子扫描反射天线及其使用方法
公开(公告)号：US6091371A
公开(公告)日：2000-07-18
申请号：US943810
申请日：1997-10-03
申请人： Kenneth Vern Buer , David Warren Corman , Dean L. Cook , Deborah Sue Dendy
发明人： Kenneth Vern Buer , David Warren Corman , Dean L. Cook , Deborah Sue Dendy
IPC分类号： H01Q3/44 , H01Q15/14 , H01Q25/00 , H01Q19/06
CPC分类号： H01Q25/00 , H01Q15/148 , H01Q3/44
摘要： An antenna subsystem (120) which comprises an electronic scanning reflector antenna (400) is used for the formation of single and multiple beams. Reflecting surface (420) is covered with at least one dielectric layer (430) which is used to simultaneously and independently steer multiple beams. Electronic scanning reflector antenna (400) operates similar to a phased array antenna. ESRA (400) comprises a number of independent controllable reflecting surfaces (450) which are combined together in close proximity. Each one of the individual regions is covered by a dielectric layer, and the dielectric constant for each can be independently controlled. Electronic scanning reflector antennas (400, 600) are used in both space-based and terrestrial-based applications. Electronic scanning reflector antennas (400, 600) are used for both transmission and reception of electromagnetic signals.
摘要翻译：包括电子扫描反射器天线（400）的天线子系统（120）用于形成单个和多个光束。反射表面（420）被至少一个介电层（430）覆盖，该电介质层用于同时且独立地引导多个光束。电子扫描反射器天线（400）类似于相控阵天线。 ESRA（400）包括多个独立的可控反射表面（450），它们紧密组合在一起。各个区域中的每一个被介电层覆盖，并且可以独立地控制每个区域的介电常数。电子扫描反射天线（400,600）用于基于空间和地面的应用。电子扫描反射天线（400,600）用于电磁信号的发射和接收。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式