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公开(公告)号：US08270926B2
公开(公告)日：2012-09-18
申请号：US10802014
申请日：2004-03-16
IPC分类号： H04B1/18
CPC分类号： H04B1/0458 , H04B1/18 , H04B1/48
摘要： A radio front end includes a transformer and an adjustable load. The transformer includes a first winding and a second winding, wherein the first winding is operably coupled to an antenna and the second winding coupled to at least one of a power amplifier and a low noise amplifier. The adjustable load is operably coupled to the second winding, wherein the adjustable load provides a first impedance based on a first impedance selection signal when the radio front end is in a transmit mode and provides a second impedance based on a second impedance selection signal when the radio front end is in a receive module such that impedance at the first winding is substantially similar in the transmit mode and in the receive mode.
摘要翻译： 无线电前端包括变压器和可调负载。 变压器包括第一绕组和第二绕组，其中第一绕组可操作地耦合到天线，第二绕组耦合到功率放大器和低噪声放大器中的至少一个。 可调负载可操作地耦合到第二绕组，其中当无线电前端处于发射模式时，可调载荷提供基于第一阻抗选择信号的第一阻抗，并且当第二阻抗选择信号基于第二阻抗选择信号时，基于第二阻抗选择信号提供第二阻抗 无线电前端处于接收模块中，使得第一绕组处的阻抗在发射模式和接收模式下基本相似。
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公开(公告)号：US07969361B2
公开(公告)日：2011-06-28
申请号：US11679659
申请日：2007-02-27
IPC分类号： H01Q1/24
CPC分类号： H01Q9/0421 , H01Q1/243 , H01Q9/0442
摘要： A low profile Planar Inverted-F Antenna (PIFA) comprises a radiating strip, an inductive tuning portion, a vertical feed portion, and a retracted ground plane. The radiating strip is approximately parallel to the ground plane and is suspended above the ground plane by the feed element at a certain distance. Further, the radiating strip, in part or entirely, overhangs the ground plane. In this way, the radiating strip may be suspended very close to the ground plane, but yet exhibits a large bandwidth.
摘要翻译： 低频平面倒F天线（PIFA）包括辐射条，感应调谐部分，垂直馈送部分和缩回接地平面。 辐射条近似平行于接地平面，并通过进给元件在一定距离处悬挂在接地平面上方。 此外，辐射条部分地或完全地突出地面。 以这种方式，辐射条可能非常靠近地平面悬挂，但是表现出很大的带宽。
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公开(公告)号：US20110133835A1
公开(公告)日：2011-06-09
申请号：US13031833
申请日：2011-02-22
CPC分类号： H03H7/422 , H03F1/02 , H03F3/24 , H03F3/60 , H03F2200/06 , H03F2200/09 , H03F2200/294 , H03F2200/372 , H03F2200/534 , H03F2200/541 , Y10T29/49135
摘要： Double transformer balun for maximum PA (Power Amplifier) power. A novel approach is presented herein by which conversion from a differential signal to single-ended signal may be achieved using a double transformer balun design. The secondary coils of the double transformer balun also operate as a choke for the PA supply voltage. The secondary coils can operate as an RF (Radio Frequency) trap or choke to keep any AC (Alternating Current) signal components and to pass any DC (Direct Current) components. By using a double transformer balun design, relatively thinner tracks may be employed thereby ensuring a high degree of electromagnetic coupling efficiency and high performance. Also, these relatively thinner tracks consume a relatively small amount of space on the die. The double transformer balun design also includes a matching Z (impedance) block that is operable to match the Z of an antenna or line that the PA is driving.
摘要翻译： 双变压器平衡 - 不平衡变压器，用于最大PA（功率放大器）功率。 本文提出了一种新颖的方法，其中可以使用双变压器平衡 - 不平衡变换器来实现从差分信号到单端信号的转换。 双变压器平衡不平衡变压器的次级线圈也作为PA电源电压的扼流圈。 次级线圈可以作为射频（射频）陷波器或扼流圈工作，以保持任何交流（交流）信号分量，并通过任何直流（直流）组件。 通过使用双变压器平衡 - 不平衡变压器设计，可以采用相对较薄的轨道，从而确保高度的电磁耦合效率和高性能。 此外，这些相对较薄的轨道在模具上消耗相对较小的空间。 双变压器平衡 - 不平衡变压器设计还包括匹配的Z（阻抗）块，其可操作以匹配PA驱动的天线或线路的Z。
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公开(公告)号：US07761115B2
公开(公告)日：2010-07-20
申请号：US11443946
申请日：2006-05-30
CPC分类号： H01Q1/2266 , H01Q1/38 , H01Q21/30
摘要： An antenna structure includes first and second antennas. The first antenna has a first geometry corresponding to a first frequency. The second antenna has a second geometry corresponding to a second frequency. The second antenna is proximal to the first antenna and utilizes electrical-magnetic properties of the first antenna to transceive signals at the second frequency.
摘要翻译： 天线结构包括第一和第二天线。 第一天线具有对应于第一频率的第一几何形状。 第二天线具有对应于第二频率的第二几何形状。 第二天线靠近第一天线，并且利用第一天线的电磁特性来以第二频率收发信号。
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公开(公告)号：US20080194302A1
公开(公告)日：2008-08-14
申请号：US11749596
申请日：2007-05-16
IPC分类号： H04M1/00
CPC分类号： H03D3/002 , H03J2200/06 , H03J2200/10
摘要： A mobile phone with a FM antenna structure having improved FM performance in a mobile phone. The mobile phone includes a printed FM antenna having a planar structure less than a planar area of the mobile phone, a conductive layer providing a ground plane to the printed FM antenna, the conductive adjacent the printed FM antenna in an electrostatic field relation; and a battery having a planar surface positioned adjacent an opposite side of the conductive layer. The planar structure of the printed FM antenna and the planar surface of the battery are substantially parallel to each other in a spaced-apart relation improving the FM performance of the printed FM antenna.
摘要翻译： 具有FM天线结构的移动电话在移动电话中具有改进的FM性能。 移动电话包括具有小于移动电话的平面区域的平面结构的印刷FM天线，向印刷的FM天线提供接地平面的导电层，与静电场关系的印刷FM天线相邻的导电体; 以及具有邻近导电层的相对侧定位的平坦表面的电池。 打印的FM天线的平面结构和电池的平面表面以间隔开的关系基本上彼此平行，改善了印刷的FM天线的FM性能。
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56.发明授权Off-chip LC circuit for lowest ground and VDD impedance for power amplifier 有权用于功率放大器的最低接地和VDD阻抗的片外LC电路公开(公告)号：US07321273B2
公开(公告)日：2008-01-22
申请号：US11539674
申请日：2006-10-09
IPC分类号： H03F3/191
CPC分类号： H03F1/565 , H03F3/195 , H03F3/24 , H03F2200/09 , H03F2200/294 , H03F2200/372 , H03H7/38
摘要： Off-chip LC circuit for lowest ground and VDD impedance for power amplifier. A novel approach is made by which a chip to PCB (Printer Circuit Board) interface may be made such that the ground and VDD potential levels are effectively brought onto the die of the chip such that a true ground potential is maintained within the chip. This off-chip LC circuit operates cooperatively with an on-chip decoupling capacitor to reduce the overall effective inductance of the bond wires employed to bring signal and voltage levels from the die to the chip exterior. This circuit ensures a relatively low impedance for a PA (Power Amplifier) that is implemented within chip thereby providing for improved performance.
摘要翻译： 用于功率放大器的最低接地和VDD阻抗的片外LC电路。 可以制造一种新颖的方法，通过其可以制造芯片到PCB（打印机电路板）接口，使得接地和VDD电位有效地被带到芯片的管芯上，使得在芯片内保持真实的接地电位。 该片外LC电路与片上去耦电容协同工作，以减少用于将信号和电压电平从模具外部输送到芯片外部的接合线的整体有效电感。 该电路确保在芯片内实现的PA（功率放大器）具有相对低的阻抗，从而提供改进的性能。
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57.发明授权Off-chip LC circuit for lowest ground and VDD impedance for power amplifier 失效用于功率放大器的最低接地和VDD阻抗的片外LC电路公开(公告)号：US07119631B2
公开(公告)日：2006-10-10
申请号：US10844237
申请日：2004-05-12
IPC分类号： H03H7/38
CPC分类号： H03F1/565 , H03F3/195 , H03F3/24 , H03F2200/09 , H03F2200/294 , H03F2200/372 , H03H7/38
摘要： Off-chip LC circuit for lowest ground and VDD impedance for power amplifier. A novel approach is made by which a chip to PCB (Printer Circuit Board) interface may be made such that the ground and VDD potential levels are effectively brought onto the die of the chip such that a true ground potential is maintained within the chip. This off-chip LC circuit operates cooperatively with an on-chip decoupling capacitor to reduce the overall effective inductance of the bond wires employed to bring signal and voltage levels from the die to the chip exterior. This circuit ensures a relatively low impedance for a PA (Power Amplifier) that is implemented within chip thereby providing for improved performance.
摘要翻译： 用于功率放大器的最低接地和VDD阻抗的片外LC电路。 可以制造一种新颖的方法，通过其可以制造芯片到PCB（打印机电路板）接口，使得接地和VDD电位有效地被带到芯片的管芯上，使得在芯片内保持真实的接地电位。 该片外LC电路与片上去耦电容协同工作，以减少用于将信号和电压电平从模具外部输送到芯片外部的接合线的整体有效电感。 该电路确保在芯片内实现的PA（功率放大器）具有相对低的阻抗，从而提供改进的性能。
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公开(公告)号：US20130072136A1
公开(公告)日：2013-03-21
申请号：US13239038
申请日：2011-09-21
CPC分类号： H01Q3/2629 , H01Q1/081 , H01Q1/2258 , H01Q1/2275 , H01Q1/243 , H01Q1/244 , H01Q1/245 , H01Q3/446 , H01Q5/25 , H01Q5/307 , H01Q5/385 , H01Q9/0435 , H01Q21/245
摘要： A compact antenna includes a main antenna patch. A first feed point and a second feed point connect with the main antenna patch to provide current in the main antenna. Excitation of the first feed point produces polarization in a first direction along the main antenna patch and excitation of the second feed point produces polarization in a second direction different from the first direction.
摘要翻译： 小型天线包括主天线贴片。 第一馈电点和第二馈电点与主天线贴片连接以在主天线中提供电流。 第一馈电点的激励沿着主天线贴片沿第一方向产生偏振，并且第二馈电点的激励在与第一方向不同的第二方向上产生极化。
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公开(公告)号：US08086263B2
公开(公告)日：2011-12-27
申请号：US13031833
申请日：2011-02-22
CPC分类号： H03H7/422 , H03F1/02 , H03F3/24 , H03F3/60 , H03F2200/06 , H03F2200/09 , H03F2200/294 , H03F2200/372 , H03F2200/534 , H03F2200/541 , Y10T29/49135
摘要： Double transformer balun for maximum PA (Power Amplifier) power. A novel approach is presented herein by which conversion from a differential signal to single-ended signal may be achieved using a double transformer balun design. The secondary coils of the double transformer balun also operate as a choke for the PA supply voltage. The secondary coils can operate as an RF (Radio Frequency) trap or choke to keep any AC (Alternating Current) signal components and to pass any DC (Direct Current) components. By using a double transformer balun design, relatively thinner tracks may be employed thereby ensuring a high degree of electromagnetic coupling efficiency and high performance. Also, these relatively thinner tracks consume a relatively small amount of space on the die. The double transformer balun design also includes a matching Z (impedance) block that is operable to match the Z of an antenna or line that the PA is driving.
摘要翻译： 双变压器平衡 - 不平衡变压器，用于最大PA（功率放大器）功率。 本文提出了一种新颖的方法，其中可以使用双变压器平衡 - 不平衡变换器来实现从差分信号到单端信号的转换。 双变压器平衡不平衡变压器的次级线圈也作为PA电源电压的扼流圈。 次级线圈可以作为射频（射频）陷波器或扼流圈工作，以保持任何交流（交流）信号分量，并通过任何直流（直流）组件。 通过使用双变压器平衡 - 不平衡变压器设计，可以采用相对较薄的轨道，从而确保高度的电磁耦合效率和高性能。 此外，这些相对较薄的轨道在模具上消耗相对较小的空间。 双变压器平衡 - 不平衡变压器设计还包括匹配的Z（阻抗）块，其可操作以匹配PA驱动的天线或线路的Z。
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公开(公告)号：US07817969B2
公开(公告)日：2010-10-19
申请号：US11858957
申请日：2007-09-21
IPC分类号： H04B1/04
CPC分类号： H03D3/002 , H03J2200/06 , H03J2200/10
摘要： An FM receiver including an FM antenna that receives continuous wavelength signals, where the FM receiver is coupled to the FM antenna and operable to alter a center frequency of a gain profile of the FM antenna. The FM receiver includes a low noise amplifier module that is coupled to amplify the continuous wavelength signal to produce an amplified RF signal therefrom. A down conversion module is coupled to mix the amplified RF signal with a local oscillation to produce an information signal. A filter module is coupled to filter the information signal to produce a filtered information signal. A demodulation module is coupled to capture audio information from the filtered information signal. A signal monitoring module is coupled to monitor the FM signal quality of a received continuous wavelength signal. The signal monitoring module produces a signal quality indication therefrom. An antenna control module produces a signal value based upon the signal quality indication, wherein the signal value operates to alter the center frequency of a gain profile of the FM antenna.
摘要翻译： 一种FM接收机，包括接收连续波长信号的FM天线，其中FM接收机耦合到FM天线并可操作以改变FM天线的增益分布的中心频率。 FM接收器包括低噪声放大器模块，其耦合以放大连续波长信号以从其产生放大的RF信号。 耦合下变频模块以将放大的RF信号与本地振荡混频以产生信息信号。 滤波器模块被耦合以对信息信号进行滤波以产生经滤波的信息信号。 耦合解调模块以从经滤波的信息信号中捕获音频信息。 信号监控模块被耦合以监视所接收的连续波长信号的FM信号质量。 信号监控模块从其产生信号质量指示。 天线控制模块基于信号质量指示产生信号值，其中信号值用于改变FM天线的增益曲线的中心频率。
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