公开(公告)号：US07876165B2

公开(公告)日：2011-01-25

申请号：US12418589

申请日：2009-04-04

Applicant: Chao-Chieh Li ,  Chung-Chun Chen ,  Huei Wang

Inventor： Chao-Chieh Li ,  Chung-Chun Chen ,  Huei Wang

IPC: H03K3/03

CPC classification number: H03K5/00006 ,  H03K3/0315 ,  H03K5/1504 ,  H03K2005/00032 ,  H03K2005/00195 ,  H03L7/0995

Abstract: A ring-based multi-push voltage-controlled oscillator (VCO) generates a multi-push output signal using a control voltage. The ring-based multi-push VCO includes a plurality of delay cells, a plurality of buffer amplifiers, and a bias unit. The delay cells connect each other in sequence to form a ring structure, and each delay cell connects with the respective buffer amplifier. The bias unit connects with the buffer amplifiers to output the multi-push output signal. The control voltage supplied to the delay cells is utilized to control the frequency of the multi-push output signal, and the ring structure formed by the delay cells is to multiply the frequency of the multi-push output signal to increase the frequency tuning range.

Abstract translation: 基于环的多压电压控制振荡器（VCO）使用控制电压产生多推输出信号。 基于环的多推压VCO包括多个延迟单元，多个缓冲放大器和偏置单元。 延迟单元依次相互连接形成环形结构，每个延迟单元与相应的缓冲放大器相连。 偏置单元与缓冲放大器连接以输出多推输出信号。 提供给延迟单元的控制电压用于控制多推输出信号的频率，并且由延迟单元形成的环形结构是乘以多推输出信号的频率以增加频率调谐范围。

公开(公告)号：US20100277840A1

公开(公告)日：2010-11-04

申请号：US12611300

申请日：2009-11-03

Applicant: Bo-Jr Huang ,  Huei Wang

Inventor： Bo-Jr Huang ,  Huei Wang

IPC: H02H9/00

CPC classification number: H03F1/52 ,  H03F3/195 ,  H03F2200/294 ,  H03F2200/444 ,  H03F2200/451

Abstract: A V-band radio frequency (RF) electrostatic discharge (ESD) protection circuit uses meander inductors and diodes connecting in series to provide ESD protection. When operated in low frequency, the static electricity input from a RF pad may discharge to ground or to a voltage VDD through the meander inductor and the diode, so that a core circuit does not be damaged by ESD. When operated in high frequency, the high frequency stray effect of the core circuit is substantially reduced due to impedance isolation generated by the meander inductors. Therefore, a low-noised amplifier (LNA) can receive an accurate high frequency input signal.

Abstract translation: V型射频（RF）静电放电（ESD）保护电路使用串联的迂回电感和二极管来提供ESD保护。 当低频工作时，从RF焊盘输入的静电可以通过曲折电感器和二极管放电到地或电压VDD，使得核心电路不会被ESD损坏。 当以高频率操作时，由于曲折电感器产生的阻抗隔离，核心电路的高频杂散效应显着降低。 因此，低噪声放大器（LNA）可以接收精确的高频输入信号。

公开(公告)号：US20100244962A1

公开(公告)日：2010-09-30

申请号：US12481650

申请日：2009-06-10

Applicant: Yung-Nien Jen ,  Jeng-Han Tsai ,  Tian-Wei Huang ,  Huei Wang ,  Che-Yu Wang

Inventor： Yung-Nien Jen ,  Jeng-Han Tsai ,  Tian-Wei Huang ,  Huei Wang ,  Che-Yu Wang

IPC: H03F3/26

CPC classification number: H03F3/604 ,  H03F1/223 ,  H03F3/211 ,  H03F3/245 ,  H03F2200/09 ,  H03F2200/216 ,  H03F2200/225 ,  H03F2200/391 ,  H03F2200/408 ,  H03F2200/534 ,  H03F2200/537

Abstract: A distributed active transformer (DAT) based millimeter-wave (MMW) power amplifier circuit is designed for power amplification of MMW frequency signals. The proposed MMW power amplifier circuit is characterized by distributing the input frequency signals into two sets of differential signals and by the use of a distributed active transformer circuit unit to process these two sets of differential signals to thereby generate an amplified frequency signal as the end result of output. The invention provides higher and greater added values and power added efficiency (PAE) and is ideal for use in millimeter-wave communications systems with an operation frequency around 60 GHz.

Abstract translation: 基于分布式有源变压器（DAT）的毫米波（MMW）功率放大器电路设计用于MMW频率信号的功率放大。 所提出的MMW功率放大器电路的特征在于将输入频率信号分配成两组差分信号，并且通过使用分布式有源变压器电路单元来处理这两组差分信号，从而产生放大的频率信号作为最终结果 的输出。 本发明提供更高和更高的附加值和功率附加效率（PAE），并且是理想的用于具有大约60GHz的工作频率的毫米波通信系统。

公开(公告)号：US20100158143A1

公开(公告)日：2010-06-24

申请号：US12481880

申请日：2009-06-10

Applicant: Lai-Huei WANG ,  Chia-Lung TSAI ,  Yu-Tao HSIEH ,  Pang-An TING ,  Jen-Yuan HSU

Inventor： Lai-Huei WANG ,  Chia-Lung TSAI ,  Yu-Tao HSIEH ,  Pang-An TING ,  Jen-Yuan HSU

IPC: H04J11/00 ,  H04L27/28

CPC classification number: H04L5/0048 ,  H04L1/0618 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0044

Abstract: A subcarrier allocation method for use by a transmitter, the transmitter being configured to, when transmitting first and second data streams, allocate pilot symbols for the first and second data streams to subcarriers, such that a first plurality of subcarriers carry the pilot symbols for the first data stream and a second plurality of subcarriers carry the pilot symbols for the second data stream. The method includes allocating, when the transmitter transmits the first data stream but does not transmit the second data stream, the second plurality of subcarriers to carry no formation or information relating to the first data stream.

Abstract translation: 一种由发射机使用的副载波分配方法，所述发射机被配置为当发射第一和第二数据流时，将第一和第二数据流的导频符号分配给子载波，使得第一多个子载波携带用于 第一数据流和第二多个子载波携带用于第二数据流的导频符号。 该方法包括当发射机发送第一数据流但不发送第二数据流时，分配第二多个子载波，以不携带与第一数据流有关的形成或信息。

公开(公告)号：US20100104053A1

公开(公告)日：2010-04-29

申请号：US12487691

申请日：2009-06-19

Applicant: Lai-Huei Wang ,  Pang-An Ting ,  Chien-Yu Kao ,  Chia-Hung Lin

Inventor： Lai-Huei Wang ,  Pang-An Ting ,  Chien-Yu Kao ,  Chia-Hung Lin

IPC: H04B1/10

CPC classification number: H04L25/0206 ,  H04L25/022 ,  H04L25/0232 ,  H04L25/03821

Abstract: An estimation method is provided for use in a receiver of an OFDM (orthogonal frequency division multiplexing) system to estimate the ICI (inter-carrier interference) and the noise power of a channel. Two pilot signals respectively carried by two subcarriers are received from the channel wherein the two pilot signals are adjacent and differ by a first phase angle. Another two pilot signals respectively carried by another two subcarrier are received from the channel wherein the another two pilot signals are adjacent and differ by a second phase angle. According to some embodiments of the invention, these phases are correlated with the ICI power, but are uncorrelated with the noise power. The estimation method then individually estimates the ICI power and noise power according to the first phase and the second phase.

Abstract translation: 提供了一种在OFDM（正交频分复用）系统的接收机中用于估计信道的ICI（载波间干扰）和噪声功率的估计方法。 从两个导频信号相邻并且相差第一相位角的信道接收分别由两个子载波承载的两个导频信号。 分别由另外两个子载波承载的另外两个导频信号从该信道接收，其中另外两个导频信号相邻并且相差第二相位角。 根据本发明的一些实施例，这些相位与ICI功率相关，但与噪声功率无关。 然后，估计方法根据第一阶段和第二阶段分别估计ICI功率和噪声功率。

公开(公告)号：US20100045400A1

公开(公告)日：2010-02-25

申请号：US12207508

申请日：2008-09-10

Applicant: Pei-Si Wu ,  Tian-Wei Huang ,  Huei Wang

Inventor： Pei-Si Wu ,  Tian-Wei Huang ,  Huei Wang

IPC: H03H7/42

CPC classification number: H01P5/10

Abstract: A microwave or millimeter-wave balun is provided. The balun uses three edge-coupled lines along with a plurality of air bridges instead of two edge-coupled lines used in a conventional planar Marchand balun. The first edge-coupled line and the second edge-coupled line are substantially parallel, and the third edge-coupled line is disposed also substantially in parallel between the first edge-coupled line and the second edge-coupled line. The plurality of air bridges are transmission lines between the first edge-coupled line and the second edge-coupled line. The air bridges have total width longer than one half of the total length of the first edge-coupled line or the second edge-coupled line. By combining three edge-coupled-lines and a plurality of air bridges, the Marchand balun has a higher coupling coefficient and increases the operation bandwidth. The microwave monolithic integrated circuit (MMIC) mixer based on the balun can provide compact size compared to conventional ones.

Abstract translation: 提供微波或毫米波平衡 - 不平衡变压器。 平衡 - 不平衡转换器使用三个边缘耦合线与多个空气桥，而不是在常规平面Marchand平衡 - 不平衡转换器中使用的两个边缘耦合线。 第一边缘耦合线路和第二边缘耦合线路基本上平行，并且第三边缘耦合线路也基本平行地布置在第一边缘耦合线路和第二边缘耦合线路之间。 多个空气桥是第一边缘耦合线和第二边缘耦合线之间的传输线。 空气桥的总宽度长于第一边缘耦合线或第二边缘耦合线的总长度的一半。 通过组合三个边缘耦合线路和多个空中桥梁，Marchand平衡 - 不平衡变换器具有更高的耦合系数并且增加了操作带宽。 基于平衡 - 不平衡变换器的微波单片集成电路（MMIC）混频器可以提供比传统的更小的尺寸。

公开(公告)号：US20090115550A1

公开(公告)日：2009-05-07

申请号：US12134097

申请日：2008-06-05

Applicant: Zuo-Min Tsai ,  Shih-Fong Chao ,  Huei Wang

Inventor： Zuo-Min Tsai ,  Shih-Fong Chao ,  Huei Wang

IPC: H01P1/15 ,  H01P1/213

CPC classification number: H01P1/15 ,  H01P1/213

Abstract: A single-pole-double-throw switch is provided, which is configured to be integrated with a bandpass filtering function and includes four quarter-wavelength transmission lines connected in series, five resonators connected in parallel to each other, and four transistors connected in parallel to four of the five resonators. When two of the four transistors are turned on and the others are turned off, the single-pole-double-throw switch is equivalent to a third-order quarter-wavelength short-circuited stub bandpass filter.

Abstract translation: 提供单极双掷开关，其被配置为与带通滤波功能集成，并且包括串联连接的四个四分之一波长的传输线，并联的五个谐振器和并联的四个晶体管 到五个谐振器中的四个。 当四个晶体管中的两个导通并且其他两个截止时，单刀双掷开关等效于三阶四分之一波长短路短截线带通滤波器。

公开(公告)号：US20090115529A1

公开(公告)日：2009-05-07

申请号：US12134137

申请日：2008-06-05

Applicant: Shih-Fong Chao ,  Zuo-Min Tsai ,  Huei Wang

Inventor： Shih-Fong Chao ,  Zuo-Min Tsai ,  Huei Wang

IPC: H03F3/68

CPC classification number: H03F3/211 ,  H03F1/34 ,  H03F3/19 ,  H03F3/45475 ,  H03F2200/108 ,  H03F2200/273 ,  H03F2200/451 ,  H03F2200/534 ,  H03F2203/45166

Abstract: A power amplifier includes a first transformer, a first transistor, a first resistor, a second transformer, a second transistor, a second resistor, and a bias circuit. The first transformer drives the first transistor. The second transformer drives the second transistor. The first transformer is connected in series with the second transformer. The first transistor is connected in series with the second transistor. Therefore, the power amplifier has input impedance and output power both greater than those of a conventional power amplifier.

Abstract translation: 功率放大器包括第一变压器，第一晶体管，第一电阻器，第二变压器，第二晶体管，第二电阻器和偏置电路。 第一个变压器驱动第一个晶体管。 第二个变压器驱动第二个晶体管。 第一变压器与第二变压器串联连接。 第一晶体管与第二晶体管串联连接。 因此，功率放大器的输入阻抗和输出功率均大于常规功率放大器的输入阻抗和输出功率。

公开(公告)号：US07482892B2

公开(公告)日：2009-01-27

申请号：US11276952

申请日：2006-03-18

Applicant: Zuo-Min Tsai ,  Mei-Chao Yeh ,  Huei Wang

Inventor： Zuo-Min Tsai ,  Mei-Chao Yeh ,  Huei Wang

IPC: H01P1/15

CPC classification number: H01P1/15

Abstract: A traveling-wave switch includes a FET-integrated Coplanar Waveguide (CPW) line structure. The FET-integrated CPW line structure incorporates a transistor, a signal line, and the ground, that can be used to eliminate the limitations imposed by the parasitic inductance of the prior art on the operation frequency of the switch. The signal line is connected directly to the drain of the transistor, eliminating the parasitic inductance caused by the connection wire between the signal line and the transistor. The source of the transistor is coupled directly to the ground of the coplanar waveguide line, thus eliminating the parasitic inductance between the transistor and ground, and raising the operation frequency of the switch.

Abstract translation: 行波开关包括FET集成共面波导（CPW）线结构。 FET集成CPW线结构包括晶体管，信号线和地，可用于消除现有技术的寄生电感对开关的工作频率施加的限制。 信号线直接连接到晶体管的漏极，消除了由信号线和晶体管之间的连接线引起的寄生电感。 晶体管的源极直接耦合到共面波导线的地，从而消除了晶体管和地之间的寄生电感，并提高了开关的工作频率。

公开(公告)号：US20080317540A1

公开(公告)日：2008-12-25

申请号：US11820323

申请日：2007-06-19

Applicant: Teng-Huei Wang

Inventor： Teng-Huei Wang

IPC: B43K1/00

CPC classification number: A45D34/04

Abstract: An applicator includes a tubular container, and a soft applicator tip bonded to the tubular container and having a composition including 60˜85% by weight of thermoplastic elastomer, 10˜30% by weight of polyolefin, and 5˜10% by weight of an adhesive. The adhesive is a modified polyolefin adhesive resin.

Abstract translation: 涂抹器包括管状容器和粘合到管状容器的软施用器尖端，并且具有包含60〜85重量％的热塑性弹性体，10〜30重量％聚烯烃和5〜10重量％ 胶粘剂。 粘合剂是改性聚烯烃粘合剂树脂。