公开(公告)号：EP1916775A1

公开(公告)日：2008-04-30

申请号：EP07445006.5

申请日：2007-02-28

申请人： Laird Technologies AB

发明人： Kaikkonen, Andrei ,  Lindberg, Peter

IPC分类号： H04B1/18 ,  H03F3/16

CPC分类号： H03F1/223 ,  H03F3/19 ,  H03F2200/216 ,  H03F2200/241 ,  H03F2200/451 ,  H03F2200/489 ,  H03F2200/75

摘要： An antenna device for a portable radio communication device comprises a radiating element (10), a filter stage (20) connected to the radiating element, and an amplifier stage (30) connected to the filter stage and connectable to a receiver device for radio signals (40). By providing an amplifier stage that is not unconditionally stable, an antenna device having advantageous characteristics is achieved.

摘要翻译： 用于便携式无线电通信设备的天线装置包括辐射元件（10），连接到辐射元件的滤波器级（20）和连接到滤波器级的放大器级（30），并且可连接到用于无线电信号的接收器装置 （40）。 通过提供不是无条件稳定的放大器级，实现了具有有利特性的天线装置。

公开(公告)号：EP1916774A1

公开(公告)日：2008-04-30

申请号：EP06445069.5

申请日：2006-10-27

申请人： Laird Technologies AB

发明人： Von Arbin, Axel ,  Kaikkonen, Andrei ,  Lindberg, Peter

IPC分类号： H04B1/18

CPC分类号： H04B1/18 ,  H03F1/223 ,  H03F1/26 ,  H03F3/193 ,  H03F2200/241 ,  H03F2200/294 ,  H03F2200/451

摘要： An antenna device for a portable radio communication device adapted for receiving radio signals comprises a radiating element (10) and an amplifier stage (30) with a transistor (31) with a gate, a source, and a drain, said transistor having a minimum noise figure below 1 dB and a gain above 15 dB in the first operating frequency band. The source of the transistor is connected directly to ground. By providing a transistor with these characteristics in this way, stable operation is achieved with high gain amplification.

摘要翻译： 一种用于接收无线电信号的便携式无线电通信设备的天线装置包括具有栅极，源极和漏极的晶体管（31）的辐射元件（10）和放大器级（30），所述晶体管具有最小值 第一个工作频段的噪声系数低于1 dB，增益高于15 dB。 晶体管的源极直接连接到地。 通过以这种方式提供具有这些特性的晶体管，通过高增益放大实现稳定的操作。

公开(公告)号：EP2992603A4

公开(公告)日：2017-02-15

申请号：EP14791244

申请日：2014-05-02

申请人： COMMW SCIENT IND RES ORG

发明人： SHAW ROBERT DOUGLAS

IPC分类号： H03F1/26 ,  H03F1/56 ,  H03F3/181 ,  H03F3/45

CPC分类号： H03F1/565 ,  H03F3/45076 ,  H03F3/45179 ,  H03F2200/108 ,  H03F2200/241 ,  H03F2200/243 ,  H03F2200/294 ,  H03F2200/411 ,  H03F2203/45154 ,  H03F2203/45394

公开(公告)号：EP2992603A1

公开(公告)日：2016-03-09

申请号：EP14791244.8

申请日：2014-05-02

申请人： Commonwealth Scientific and Industrial Research Organisation

发明人： SHAW, Robert Douglas

IPC分类号： H03F1/26 ,  H03F3/45 ,  H03F3/181

CPC分类号： H03F1/565 ,  H03F3/45076 ,  H03F3/45179 ,  H03F2200/108 ,  H03F2200/241 ,  H03F2200/243 ,  H03F2200/294 ,  H03F2200/411 ,  H03F2203/45154 ,  H03F2203/45394

摘要： A low noise amplifier circuit including: at least a first input and first output; at least a first stage of transistor amplification having a transistor input terminal; the circuit further comprising: an input driving circuit interconnecting the first input to the transistor input terminal, the input driving circuit including a parallel resonant circuit interconnected between the transistor input terminal and ground and a series resonant circuit interconnected between the input terminal and the transistor input terminal, the input driving circuit functioning as an input matching network for the circuit in conjunction with an input bias and decoupling network.

摘要翻译： 一种低噪声放大器电路，包括：至少第一输入端和第一输出端; 至少第一级晶体管放大器，具有晶体管输入端子; 所述电路进一步包括：输入驱动电路，将所述第一输入端与所述晶体管输入端子互连，所述输入驱动电路包括并联谐振电路和串联谐振电路，所述并联谐振电路在所述晶体管输入端子和地之间互连， 终端，输入驱动电路与输入偏置和去耦网络一起用作电路的输入匹配网络。

公开(公告)号：EP3044723A4

公开(公告)日：2017-05-03

申请号：EP14844032

申请日：2014-03-14

申请人： DOCKON AG

发明人： RADA PATRICK ANTOINE ,  BROWN FORREST JAMES ,  DUPUY ALEXANDRE

IPC分类号： G06G7/24 ,  H03F1/38 ,  H03F1/56 ,  H03F3/195 ,  H03F3/72 ,  H03L7/06 ,  H04B1/22

CPC分类号： H03F3/193 ,  H03F1/38 ,  H03F1/56 ,  H03F3/195 ,  H03F3/72 ,  H03F2200/129 ,  H03F2200/147 ,  H03F2200/222 ,  H03F2200/237 ,  H03F2200/241 ,  H03F2200/243 ,  H03F2200/246 ,  H03F2200/261 ,  H03F2200/294 ,  H03F2200/297 ,  H03F2200/301 ,  H03F2200/306 ,  H03F2200/309 ,  H03F2200/387 ,  H03F2200/391 ,  H03F2200/399 ,  H03F2200/402 ,  H03F2200/438 ,  H03F2200/451 ,  H03F2200/462 ,  H03L7/06 ,  H04B1/22

摘要： A logarithmic detector amplifying (LDA) system is provided for use as a high sensitivity receive booster or replacement for a low noise amplifier in a receive chain of a communication device. The LDA system includes an amplifying circuit configured to receive an input signal having a first frequency and generate an oscillation based on the input signal, a sampling circuit coupled to the amplifying circuit and configured to terminate the oscillation based on a predetermined threshold to periodically clamp and restart the oscillation to generate a series of pulses modulated by the oscillation and by the input signal, and one or more resonant circuits coupled with the amplifying circuit and configured to establish a frequency of operation and to generate an output signal having a second frequency, the second frequency being substantially the same as the first frequency.

摘要翻译： 提供对数检测器放大（LDA）系统用作通信设备的接收链中的高灵敏度接收升压器或替代低噪声放大器。 LDA系统包括：放大电路，被配置为接收具有第一频率的输入信号并且基于输入信号产生振荡;采样电路，耦合到放大电路并且被配置为基于预定阈值来终止振荡以周期性地钳位 重新开始振荡以产生由振荡和输入信号调制的一系列脉冲;以及一个或多个谐振电路，与放大电路耦合并被配置为建立操作频率并生成具有第二频率的输出信号， 第二频率与第一频率基本相同。

公开(公告)号：EP3044723A1

公开(公告)日：2016-07-20

申请号：EP14844032.4

申请日：2014-03-14

申请人： Dockon AG

发明人： RADA, Patrick, Antoine ,  BROWN, Forrest, James ,  DUPUY, Alexandre

IPC分类号： G06G7/24

CPC分类号： H03F3/193 ,  H03F1/38 ,  H03F1/56 ,  H03F3/195 ,  H03F3/72 ,  H03F2200/129 ,  H03F2200/147 ,  H03F2200/222 ,  H03F2200/237 ,  H03F2200/241 ,  H03F2200/243 ,  H03F2200/246 ,  H03F2200/261 ,  H03F2200/294 ,  H03F2200/297 ,  H03F2200/301 ,  H03F2200/306 ,  H03F2200/309 ,  H03F2200/387 ,  H03F2200/391 ,  H03F2200/399 ,  H03F2200/402 ,  H03F2200/438 ,  H03F2200/451 ,  H03F2200/462 ,  H03L7/06 ,  H04B1/22

摘要： A logarithmic detector amplifying (LDA) system is provided for use as a high sensitivity receive booster or replacement for a low noise amplifier in a receive chain of a communication device. The LDA system includes an amplifying circuit configured to receive an input signal having a first frequency and generate an oscillation based on the input signal, a sampling circuit coupled to the amplifying circuit and configured to terminate the oscillation based on a predetermined threshold to periodically clamp and restart the oscillation to generate a series of pulses modulated by the oscillation and by the input signal, and one or more resonant circuits coupled with the amplifying circuit and configured to establish a frequency of operation and to generate an output signal having a second frequency, the second frequency being substantially the same as the first frequency.