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    • 1. 发明授权
    • Dipole antenna array
    • 偶极天线阵列
    • US07800550B2
    • 2010-09-21
    • US12071843
    • 2008-02-27
    • Lee-Ting HsiehChih-Hao Lai
    • Lee-Ting HsiehChih-Hao Lai
    • H01Q9/28
    • H01Q1/38H01Q5/00H01Q5/321H01Q5/357H01Q21/08
    • A dipole antenna array includes a dielectric substrate; electric tuning elements mounted on a first surface and a second surface of the dielectric substrate; resonance elements and ground elements; and a feed line. Each resonance element includes first resonance parts, second resonance parts and a third resonance part. One of the second resonance parts connects the corresponding first resonance part to the third resonance part. The other second resonance parts respectively connect two neighboring first resonance parts. Each ground element includes first ground parts, second ground parts and a third ground part. One of the second ground parts connects one of the first ground parts to the third ground part. The other second ground parts respectively connect to two neighboring first ground parts.
    • 偶极天线阵列包括电介质基片; 电调谐元件安装在电介质基片的第一表面和第二表面上; 谐振元件和接地元件; 和喂料线。 每个谐振元件包括第一谐振部件,第二谐振部件和第三谐振部件。 第二共振部分中的一个将对应的第一共振部分连接到第三共振部分。 其他第二谐振部分分别连接两个相邻的第一谐振部分。 每个接地元件包括第一接地部分,第二接地部分和第三接地部分。 第二接地部分之一将第一接地部分之一连接到第三接地部分。 其他第二接地部分分别连接到两个相邻的第一接地部分。
    • 3. 发明申请
    • Dipole antenna array
    • 偶极天线阵列
    • US20090213024A1
    • 2009-08-27
    • US12071843
    • 2008-02-27
    • Lee-Ting HsiehChih-Hao Lai
    • Lee-Ting HsiehChih-Hao Lai
    • H01Q9/16
    • H01Q1/38H01Q5/00H01Q5/321H01Q5/357H01Q21/08
    • A dipole antenna array includes a dielectric substrate; electric tuning elements mounted on a first surface and a second surface of the dielectric substrate; resonance elements and ground elements; and a feed line. Each resonance element includes first resonance parts, second resonance parts and a third resonance part. One of the second resonance parts connects the corresponding first resonance part to the third resonance part. The other second resonance parts respectively connect two neighboring first resonance parts. Each ground element includes first ground parts, second ground parts and a third ground part. One of the second ground parts connects one of the first ground parts to the third ground part. The other second ground parts respectively connect to two neighboring first ground parts.
    • 偶极天线阵列包括电介质基片; 电调谐元件安装在电介质基片的第一表面和第二表面上; 谐振元件和接地元件; 和喂料线。 每个谐振元件包括第一谐振部件,第二谐振部件和第三谐振部件。 第二共振部分中的一个将对应的第一共振部分连接到第三共振部分。 其他第二谐振部分分别连接两个相邻的第一谐振部分。 每个接地元件包括第一接地部分,第二接地部分和第三接地部分。 第二接地部分之一将第一接地部分之一连接到第三接地部分。 其他第二接地部分分别连接到两个相邻的第一接地部分。
    • 4. 发明授权
    • Frequency synthesizer applied to frequency hopping system
    • 频率合成器适用于跳频系统
    • US07545847B2
    • 2009-06-09
    • US11773963
    • 2007-07-06
    • Chi-Tung ChangChih-Hao LaiChieh-Tsao Hwang
    • Chi-Tung ChangChih-Hao LaiChieh-Tsao Hwang
    • H04B1/38
    • H03L7/183H03B21/025
    • A frequency synthesizer applied to a frequency hopping system includes a voltage controlled oscillator (VCO), a phase lock loop (PLL) system, a second frequency divider, a first SSB mixer, a second SSB mixer, and a multiplexer. The VCO generates an oscillating frequency. The PLL system includes a first frequency divider and divides the oscillating frequency by 10 to generate a first dividing signal. The second frequency divider divides the oscillating frequency by 2 to generate a second dividing signal and further divides the second dividing signal by 2 to generate a third dividing signal. The first SSB mixer mixes frequencies of the second and third dividing signals to generate a first mixing signal. The second SSB mixer mixes frequencies of the first mixing signal and the first dividing signal to generate a second mixing signal. The Multiplexer determines to output the first mixing signal or the second mixing signal.
    • 应用于跳频系统的频率合成器包括压控振荡器(VCO),锁相环(PLL)系统,第二分频器,第一SSB混频器,第二SSB混频器和多路复用器。 VCO产生振荡频率。 PLL系统包括第一分频器,并将振荡频率除以10以产生第一分频信号。 第二分频器将振荡频率除以2以产生第二分频信号,并将第二分频信号除以2,以产生第三分频信号。 第一SSB混频器混合第二和第三分频信号的频率以产生第一混频信号。 第二SSB混频器混合第一混频信号和第一分频信号的频率以产生第二混频信号。 多路复用器确定输出第一混频信号或第二混频信号。
    • 5. 发明申请
    • Frequency synthesizer applied to a digital television tuner
    • 频率合成器应用于数字电视调谐器
    • US20090061804A1
    • 2009-03-05
    • US11987029
    • 2007-11-27
    • Chi-Tung ChangChih-Hao LaiChieh-Tsao Hwang
    • Chi-Tung ChangChih-Hao LaiChieh-Tsao Hwang
    • H04B1/06
    • H03L7/18H03L7/0891H03L7/099
    • A frequency synthesizer applied to a digital television tuner includes: a voltage controlled oscillator (VCO), a phase locked loop (PLL), a frequency divider unit, and a multiplexer. The maximum oscillated frequency of the VCO is twice its minimum frequency. The PLL controls and locks the VCO output frequency by a frequency control signal. The frequency divider unit includes a plurality of first dividers which form a cascade connection. The frequency divider unit receives the VCO output frequency, and subsequently divides the output frequency one by one. The multiplexer receives the dividing signals, and then chooses one of the dividing signals by a frequency selection signal, and generates a local oscillation signal. Hence, the present invention can implement the frequency synthesizer by simple architecture and cover the frequency ranges of Digital Video Broadcasting standard.
    • 应用于数字电视调谐器的频率合成器包括:压控振荡器(VCO),锁相环(PLL),分频器单元和多路复用器。 VCO的最大振荡频率是其最小频率的两倍。 PLL通过频率控制信号控制和锁定VCO输出频率。 分频器单元包括形成级联连接的多个第一分频器。 分频器单元接收VCO输出频率,随后逐个分频输出频率。 多路复用器接收分频信号,然后通过频率选择信号选择一个分频信号,并产生本地振荡信号。 因此,本发明可以通过简单的架构实现频率合成器并覆盖数字视频广播标准的频率范围。
    • 6. 发明申请
    • FREQUENCY SYNTHESIZER APPLIED TO FREQUENCY HOPPING SYSTEM
    • 频率合成器适用于频率控制系统
    • US20080285625A1
    • 2008-11-20
    • US11773963
    • 2007-07-06
    • Chi-Tung ChangChih-Hao LaiChieh-Tsao Hwang
    • Chi-Tung ChangChih-Hao LaiChieh-Tsao Hwang
    • H04B1/00
    • H03L7/183H03B21/025
    • A frequency synthesizer applied to a frequency hopping system includes a voltage controlled oscillator (VCO), a phase lock loop (PLL) system, a second frequency divider, a first SSB mixer, a second SSB mixer, and a multiplexer. The VCO generates an oscillating frequency. The PLL system includes a first frequency divider and divides the oscillating frequency by 10 to generate a first dividing signal. The second frequency divider divides the oscillating frequency by 2 to generate a second dividing signal and further divides the second dividing signal by 2 to generate a third dividing signal. The first SSB mixer mixes frequencies of the second and third dividing signals to generate a first mixing signal. The second SSB mixer mixes frequencies of the first mixing signal and the first dividing signal to generate a second mixing signal. The Multiplexer determines to output the first mixing signal or the second mixing signal.
    • 应用于跳频系统的频率合成器包括压控振荡器(VCO),锁相环(PLL)系统,第二分频器,第一SSB混频器,第二SSB混频器和多路复用器。 VCO产生振荡频率。 PLL系统包括第一分频器,并将振荡频率除以10以产生第一分频信号。 第二分频器将振荡频率除以2以产生第二分频信号,并将第二分频信号除以2,以产生第三分频信号。 第一SSB混频器混合第二和第三分频信号的频率以产生第一混频信号。 第二SSB混频器混合第一混频信号和第一分频信号的频率以产生第二混频信号。 多路复用器确定输出第一混频信号或第二混频信号。
    • 7. 发明申请
    • Linear tuning circuit and tuning method thereof
    • 线性调谐电路及其调谐方法
    • US20050099249A1
    • 2005-05-12
    • US10761984
    • 2004-01-21
    • Chih-Hao Lai
    • Chih-Hao Lai
    • H03J3/18H03J3/06H03J5/04
    • H03J3/185
    • A linear tuning varactor circuit has the first single-end varactor circuit, the second single-end varactor circuit and a voltage divider. The first single-end varactor circuit has tuning terminal receiving the tuning voltage to change the capacitance thereof The second single-end varactor circuit has a reference voltage terminal receiving the reference with constant voltage. The first single-end varactor circuit and the second single-end varactor circuit are coupled to each other in series and have a node. The voltage divider is coupled to the tuning terminal, the reference voltage terminal and the node. The node has a divided voltage, which results from dividing a voltage difference between the tuning voltage and the reference voltage by the voltage divider with a pre-set voltage dividing ratio.
    • 线性调谐变容二极管电路具有第一单端变容二极管电路,第二单端变容二极管电路和分压器。 第一单端变容二极管具有接收调谐电压以改变其电容的调谐端。第二单端可变电抗器电路具有以恒定电压接收参考的参考电压端。 第一单端变容二极管电路和第二单端变容二极管电路串联耦合并具有节点。 分压器耦合到调谐端子,参考电压端子和节点。 节点具有分压,其由调节电压和参考电压之间的电压差由分压器以预设分压比分压。
    • 9. 发明授权
    • Linear tuning circuit and tuning method thereof
    • 线性调谐电路及其调谐方法
    • US07009472B2
    • 2006-03-07
    • US10761984
    • 2004-01-21
    • Chih-Hao Lai
    • Chih-Hao Lai
    • H03J3/06
    • H03J3/185
    • A linear tuning varactor circuit has the first single-end varactor circuit, the second single-end varactor circuit and a voltage divider. The first single-end varactor circuit has tuning terminal receiving the tuning voltage to change the capacitance thereof The second single-end varactor circuit has a reference voltage terminal receiving the reference with constant voltage. The first single-end varactor circuit and the second single-end varactor circuit are coupled to each other in series and have a node. The voltage divider is coupled to the tuning terminal, the reference voltage terminal and the node. The node has a divided voltage, which results from dividing a voltage difference between the tuning voltage and the reference voltage by the voltage divider with a pre-set voltage dividing ratio.
    • 线性调谐变容二极管电路具有第一单端变容二极管电路,第二单端变容二极管电路和分压器。 第一单端变容二极管具有接收调谐电压以改变其电容的调谐端。第二单端可变电抗器电路具有以恒定电压接收参考的参考电压端。 第一单端变容二极管电路和第二单端变容二极管电路串联耦合并具有节点。 分压器耦合到调谐端子,参考电压端子和节点。 节点具有分压,其由调节电压和参考电压之间的电压差由分压器以预设分压比分压。