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公开(公告)号：US08508420B2
公开(公告)日：2013-08-13
申请号：US12352888
申请日：2009-01-13
摘要： An antenna device and a wireless communication apparatus that are capable of obtaining a plurality of resonant frequencies and varying the plurality of resonant frequencies over a wide range are provided. A first antenna unit of an antenna device includes a feed electrode, a first radiation electrode, and a first frequency-variable circuit. The first frequency-variable circuit includes first and second reactance circuits each including a variable-capacitance diode. A control voltage is applied to the first frequency-variable circuit, and the resonant frequency of the first antenna unit can thus be varied. A second antenna unit includes the feed electrode, a second radiation electrode, and a second frequency-variable circuit. The second frequency-variable circuit includes first and third reactance circuits each including a variable-capacitance diode. A control voltage is applied to the second frequency-variable circuit, and the resonant frequency of the second antenna unit can thus be varied.
摘要翻译： 提供能够获得多个谐振频率并且在宽范围内改变多个谐振频率的天线装置和无线通信装置。 天线装置的第一天线单元包括馈电电极，第一辐射电极和第一可变频电路。 第一变频电路包括各自包括可变电容二极管的第一和第二电抗电路。 控制电压被施加到第一可变电路，因此可以改变第一天线单元的谐振频率。 第二天线单元包括馈电电极，第二辐射电极和第二可变频电路。 第二变频电路包括每个包括可变电容二极管的第一和第三电抗电路。 控制电压被施加到第二可变电路，因此可以改变第二天线单元的谐振频率。
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公开(公告)号：US08279121B2
公开(公告)日：2012-10-02
申请号：US12504367
申请日：2009-07-16
IPC分类号： H01Q1/38
摘要： A compact and low-cost antenna device in which no interference occurs even when many antenna units corresponding to various systems are mounted close together in a small area, and a wireless communication apparatus including the antenna device. An antenna device includes plural antenna units mounted on a single dielectric base. A first antenna unit having a lowest fundamental frequency is disposed at a left end of a non-ground region, a second antenna unit having a highest fundamental frequency of the plurality of the antenna units is disposed at a right end of the non-ground region, and a third antenna unit having a fundamental frequency between those of the first antenna unit and the second antenna unit is disposed between the first and second antenna units. A current-density control coil is connected between a first radiation electrode and a power feeder of the first antenna unit, while a reactance circuit is disposed in the middle of the first radiation electrode. Notches may be disposed between the first radiation electrode and a second radiation electrode and between the first radiation electrode and a third radiation electrode.
摘要翻译： 即使在与各种系统相对应的许多天线单元紧密地一起安装在小区域中的情况下也不发生干扰的紧凑且低成本的天线装置，以及包括该天线装置的无线通信装置。 天线装置包括安装在单个电介质基座上的多个天线单元。 具有最低基频的第一天线单元设置在非接地区域的左端，具有多个天线单元的最高基频的第二天线单元设置在非接地区域的右端 并且具有在第一天线单元和第二天线单元之间的基频的第三天线单元设置在第一和第二天线单元之间。 电流密度控制线圈连接在第一辐射电极和第一天线单元的馈电器之间，而电抗电路设置在第一辐射电极的中间。 凹口可以设置在第一辐射电极和第二辐射电极之间以及第一辐射电极和第三辐射电极之间。
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公开(公告)号：US20090115674A1
公开(公告)日：2009-05-07
申请号：US12352888
申请日：2009-01-13
IPC分类号： H01Q9/00
摘要： An antenna device and a wireless communication apparatus that are capable of obtaining a plurality of resonant frequencies and varying the plurality of resonant frequencies over a wide range are provided. A first antenna unit of an antenna device includes a feed electrode, a first radiation electrode, and a first frequency-variable circuit. The first frequency-variable circuit includes first and second reactance circuits each including a variable-capacitance diode. A control voltage is applied to the first frequency-variable circuit, and the resonant frequency of the first antenna unit can thus be varied. A second antenna unit includes the feed electrode, a second radiation electrode, and a second frequency-variable circuit. The second frequency-variable circuit includes first and third reactance circuits each including a variable-capacitance diode. A control voltage is applied to the second frequency-variable circuit, and the resonant frequency of the second antenna unit can thus be varied.
摘要翻译： 提供能够获得多个谐振频率并且在宽范围内改变多个谐振频率的天线装置和无线通信装置。 天线装置的第一天线单元包括馈电电极，第一辐射电极和第一可变频电路。 第一变频电路包括各自包括可变电容二极管的第一和第二电抗电路。 控制电压被施加到第一可变电路，因此可以改变第一天线单元的谐振频率。 第二天线单元包括馈电电极，第二辐射电极和第二可变频电路。 第二变频电路包括每个包括可变电容二极管的第一和第三电抗电路。 控制电压被施加到第二可变电路，因此可以改变第二天线单元的谐振频率。
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公开(公告)号：US08643557B2
公开(公告)日：2014-02-04
申请号：US12710945
申请日：2010-02-23
IPC分类号： H01Q11/12
摘要： An antenna apparatus and a radio communication apparatus are capable of separately controlling a resonance frequency in a basic mode and a resonance frequency in a higher mode and have a wide bandwidth in which the resonance frequency in the basic mode is variable. The antenna apparatus includes a feeding electrode 2, a loop-shaped radiation electrode 3, a capacitance portion 4, and inductors 5 and 6. The capacitance portion 4 is formed by a gap between an open end 3a of the loop-shaped radiation electrode 3 and the feeding electrode 2. The inductor 5 is disposed at a position where a large current is obtained in the basic mode and a small current is obtained in the higher mode. The inductor 6 is disposed at a position where a large current is obtained in the higher mode and a small current is obtained in the basic mode.
摘要翻译： 天线装置和无线电通信装置能够分别控制基本模式中的谐振频率和较高模式的谐振频率，并且具有基本模式中的谐振频率可变的宽带宽。 天线装置包括馈电电极2，环形辐射电极3，电容部分4和电感器5和6.电容部分4由环形辐射电极3的开口端3a之间的间隙形成 和馈电电极2.电感器5设置在基本模式下获得大电流的位置，并且在较高模式下获得小电流。 电感器6设置在较高模式下获得大电流的位置，并且在基本模式下获得小电流。
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公开(公告)号：US20090273531A1
公开(公告)日：2009-11-05
申请号：US12504367
申请日：2009-07-16
摘要： A compact and low-cost antenna device in which no interference occurs even when many antenna units corresponding to various systems are mounted close together in a small area, and a wireless communication apparatus including the antenna device. An antenna device includes plural antenna units mounted on a single dielectric base. A first antenna unit having a lowest fundamental frequency is disposed at a left end of a non-ground region, a second antenna unit having a highest fundamental frequency of the plurality of the antenna units is disposed at a right end of the non-ground region, and a third antenna unit having a fundamental frequency between those of the first antenna unit and the second antenna unit is disposed between the first and second antenna units. A current-density control coil is connected between a first radiation electrode and a power feeder of the first antenna unit, while a reactance circuit is disposed in the middle of the first radiation electrode. Notches may be disposed between the first radiation electrode and a second radiation electrode and between the first radiation electrode and a third radiation electrode.
摘要翻译： 即使在与各种系统相对应的许多天线单元紧密地一起安装在小区域中的情况下也不发生干扰的紧凑且低成本的天线装置，以及包括该天线装置的无线通信装置。 天线装置包括安装在单个电介质基座上的多个天线单元。 具有最低基频的第一天线单元设置在非接地区域的左端，具有多个天线单元的最高基频的第二天线单元设置在非接地区域的右端 并且具有在第一天线单元和第二天线单元之间的基频的第三天线单元设置在第一和第二天线单元之间。 电流密度控制线圈连接在第一辐射电极和第一天线单元的馈电器之间，而电抗电路设置在第一辐射电极的中间。 凹口可以设置在第一辐射电极和第二辐射电极之间以及第一辐射电极和第三辐射电极之间。
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