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    • 1. 发明申请
    • Folded Antenna
    • 折叠天线
    • US20080238778A1
    • 2008-10-02
    • US10593714
    • 2005-03-17
    • JunXiang GeShozaburo KamedaHiroshi Ichikawa
    • JunXiang GeShozaburo KamedaHiroshi Ichikawa
    • H01Q1/38
    • H01Q1/38H01Q1/2283H01Q1/36H01Q5/00H01Q5/357H01Q9/42H01Q13/206
    • An antenna element 1 is formed such that a plurality of turning parts 13, 15, 17 are formed by being turned back in zigzag in parallel to a ground conductor film 2 while extending perpendicularly thereto and the lengths of segments 12, 14, 16, 18 between the turning parts are shorter on a side of the ground conductor film 2 (a side of a feeding part 4) and increase gradually as the segments are away from the ground conductor film 2. The turning parts of the antenna element 1 are formed such that the antenna resonates at two or more frequency bands, and has a fractional bandwidth of 4% or more of its frequency in a first frequency band and a fractional bandwidth of 15% or more of its frequency in a second frequency band by adjusting the lengths L1, L2 and L3 of respective segments and the intervals d1, d2 and d3 between adjacent segments. Consequently, a wideband antenna is realized in two or more multi-frequency bands, for example 2.4 to 2.5 GHz and 5 to 6 GHz, by using a single folded antenna.
    • 天线元件1形成为使得多个转动部分13,15,17通过与接地导体膜2平行地向后折回而形成,同时垂直于其延伸并且段12,14,16,18的长度 在接地导体膜2的一侧(馈电部4的一侧)的转动部之间变短,并且随着片远离接地导体膜2而逐渐增大。 天线元件1的转动部分形成为使得天线以两个或更多个频带谐振,并且在第一频带中具有其频率的4%以上的分数带宽和15%以上的分数带宽 通过调整各个段的长度L 1,L 2和L 3 3,在第二频带中的频率,以及间隔d < 相邻片段之间的1个,2个2个和3个3个。 因此,通过使用单个折叠天线,在两个或更多个多频带(例如2.4至2.5GHz和5至6GHz)中实现宽带天线。
    • 2. 发明授权
    • Antenna with built-in filter
    • 天线内置滤波器
    • US07132984B2
    • 2006-11-07
    • US10520814
    • 2003-07-03
    • Shozaburo KamedaHiroshi IchikawaJunXiang Ge
    • Shozaburo KamedaHiroshi IchikawaJunXiang Ge
    • H01Q1/38
    • H01Q23/00H01Q1/38H01Q9/0407
    • A laminated dielectric block (3) is formed by laminating dielectric sheets (31) each having a conductive film formed on its one surface so as to constitute at least one filter (2). A radiation element (1) is provided so as to fix to the laminating dielectric block, wherein one electrode of the filter is electrically connected to the radiation element. The other electrode (22) of the filter is connected to a feeding terminal electrode (4) provided mounting face B (a face opposing to a circuit board) of the laminated dielectric block through a via-contact (33) and a wiring (34), not being exposed to the side face. As a result, an antenna with built-in filter of the structure where even if it is mounted on a circuit board, interference between an electronic circuit on the circuit board and the feeding terminal electrode of the antenna is prevented to improve the isolation characteristic and transmitting or receiving characteristic.
    • 层压电介质块(3)通过层压在其一个表面上形成有导电膜的电介质片(31)形成,以构成至少一个过滤器(2)。 辐射元件(1)被设置成固定到层压电介质块,其中滤波器的一个电极电连接到辐射元件。 滤波器的另一个电极(22)通过通孔接触(33)和布线(34)连接到提供的层叠介电块的安装面B(与电路板相对的面)的馈电端子电极(4) ),不会暴露在侧面。 结果,即使安装在电路板上的内置结构的滤波器的天线,也防止了电路板上的电子电路与天线的馈电端子电极之间的干扰,从而提高了隔离特性, 发送或接收特性。
    • 5. 发明授权
    • Antenna for mounting on vehicle, antenna element and manufacturing method thereof
    • 车载天线,天线元件及其制造方法
    • US06271804B1
    • 2001-08-07
    • US09476796
    • 1999-12-30
    • Wasuke YanagisawaRyo HorieShozaburo KamedaTakao KawaharaTomio AnbeKatsuo Miki
    • Wasuke YanagisawaRyo HorieShozaburo KamedaTakao KawaharaTomio AnbeKatsuo Miki
    • H01Q136
    • H01Q11/08H01Q1/085H01Q1/3275H01Q1/362H01Q1/40H01Q5/357H01Q9/36H01Q9/42
    • An antenna for mounting on a vehicle which restrains damping of a signal voltage by reducing a stray capacitance of a signal path and has an improved antenna characteristic and a short physical length, and an antenna element which is suitable for an antenna for mounting on a vehicle and is flexible by using a helical coil of a large winding diameter are provided. In the antenna for mounting on a vehicle, with respect to a band signal having a short wavelength of a plurality of band signals to be transmitted/received, an antenna element is caused to resonate with a physical length shorter than ¼ of the wavelength of the band signal. A linear line portion is provided at the proximal end, and the antenna element is provided at a predetermined distance from vehicle body and a conductive member of the same electric potential as the vehicle body. The stray capacitance between the proximal end portion of the antenna element and the vehicle body is small, and a signal voltage is outputted without being damped. The antenna element is formed by burying a helical coil coaxially into a flexible insulating resin pipe. The pitch of the helical coil is not shifted even when it is bent repeatedly. Also, no sink mark is generated in the insulating resin pipe.
    • 一种用于安装在车辆上的天线,其通过减小信号路径的杂散电容来限制信号电压的阻尼,并且具有改善的天线特性和短的物理长度,以及适合于安装在车辆上的天线的天线元件 并且通过使用具有大的卷绕直径的螺旋线圈是灵活的。 在用于安装在车辆上的天线中,相对于要发射/接收的多个频带信号的波长较短的频带信号,使天线元件与短于波长的波长的1/4的物理长度谐振 频带信号。 在近端设有直线部分,天线元件设置在与车体预定的距离和与车体相同电位的导电部件上。 天线元件的基端部与车体之间的杂散电容小,信号电压不被阻尼而输出。 天线元件通过将螺旋线圈同轴地埋入柔性绝缘树脂管中而形成。 螺旋线圈的间距即使在重复弯曲时也不会偏移。 另外,在绝缘树脂管中不产生凹痕。
    • 6. 发明授权
    • Folded antenna
    • 折叠天线
    • US07598921B2
    • 2009-10-06
    • US10593714
    • 2005-03-17
    • JunXiang GeShozaburo KamedaHiroshi Ichikawa
    • JunXiang GeShozaburo KamedaHiroshi Ichikawa
    • H01Q9/16H01Q1/38
    • H01Q1/38H01Q1/2283H01Q1/36H01Q5/00H01Q5/357H01Q9/42H01Q13/206
    • An antenna element 1 is formed such that a plurality of turning parts 13, 15, 17 are formed by being turned back in zigzag in parallel to a ground conductor film 2 while extending perpendicularly thereto and the lengths of segments 12, 14, 16, 18 between the turning parts are shorter on a side of the ground conductor film 2 (a side of a feeding part 4) and increase gradually as the segments are away from the ground conductor film 2. The turning parts of the antenna element 1 are formed such that the antenna resonates at two or more frequency bands, and has a fractional bandwidth of 4% or more of its frequency in a first frequency band and a fractional bandwidth of 15% or more of its frequency in a second frequency band by adjusting the lengths L1, L2 and L3 of respective segments and the intervals d1, d2 and d3 between adjacent segments. Consequently, a wideband antenna is realized in two or more multi-frequency bands, for example 2.4 to 2.5 GHz and 5 to 6 GHz, by using a single folded antenna.
    • 天线元件1形成为使得多个转动部分13,15,17通过与接地导体膜2平行地向后折回而形成,同时垂直于其延伸并且段12,14,16,18的长度 在接地导体膜2的一侧(馈电部4的一侧)的转动部之间的距离较短,并且随着该部分远离接地导体膜2而逐渐增加。天线元件1的转动部件形成为 天线在两个或更多个频带处共振,并且在第一频带中具有其频率的4%以上的分数带宽,并且在第二频带中具有其频率的15%以上的分数带宽,通过调整长度 L1,L2和L3以及相邻段之间的间隔d1,d2和d3。 因此,通过使用单个折叠天线,在两个或更多个多频带(例如2.4至2.5GHz和5至6GHz)中实现宽带天线。
    • 9. 发明授权
    • Antenna circuit
    • 天线电路
    • US06456832B1
    • 2002-09-24
    • US09357128
    • 1999-07-20
    • Wasuke YanagisawaShozaburo KamedaRyo HorieHaruhisa UchidaJunichi ImaiYuichi Kagoshima
    • Wasuke YanagisawaShozaburo KamedaRyo HorieHaruhisa UchidaJunichi ImaiYuichi Kagoshima
    • H04B118
    • H04B1/005H04B1/00H04B1/109H04B1/18H04B1/28H04B1/40H04B1/406
    • An antenna circuit which is improved the deterioration of amplitude characteristic in a strong electric field, an antenna circuit for AM broadcasting which can surely inhibit and damp FM-band signals in the strong electric field and amplifies to output AM-band signals, and an antenna circuit for AM/FM broadcasting in which AM-band signals are not damped by means of an FM-band filter. In the first antenna circuit, the output signal of an antenna (10) is supplied to the base of a transistor Tr2 forming a current amplification type amplifier having a high-input and low-output impedance and the emitter of the transistor Tr2 is grounded through a coil L6 and connected to an FM receiver (16) through a band-pass filter (38). In the second antenna circuit for receiving AM broadcasting, an input terminal is connected to an AM amplifier circuit (36) through coils (L7) and L8 in series and to the gate G of a field effect transistor FET. The source S of the transistor FET is grounded and the connecting point of the coils L7 and L8 is grounded through a capacitor C15 and a coil L9 in series. The second antenna circuit inhibits and damps FM-band signals in a plurality of steps. In the third antenna circuit for AM/FM broadcasting, the output signal of an antenna is divided into two parts and one part is supplied to an FM-band filter (12) through a serial FM resonance circuit (30) composed of capacitors and coils. The other part of the output signal is supplied to an AM-band filter (34).
    • 改善强电场中振幅特性恶化的天线电路,用于AM广播的天线电路,其能够可靠地抑制和抑制强电场中的FM频带信号并放大以输出AM频带信号;以及天线 AM / FM广播的电路,其中AM波段信号不通过FM波段滤波器衰减。 在第一天线电路中,天线(10)的输出信号被提供给形成具有高输入和低输出阻抗的电流放大型放大器的晶体管Tr2的基极,晶体管Tr2的发射极通过 线圈L6,并通过带通滤波器(38)连接到FM接收器(16)。 在用于接收AM广播的第二天线电路中,输入端子通过串联的线圈(L7)和L8以及场效应晶体管FET的栅极G连接到AM放大器电路(36)。 晶体管FET的源极S接地,并且线圈L7和L8的连接点通过电容器C15和线圈L9串联接地。 第二天线电路在多个步骤中抑制和抑制FM频带信号。 在用于AM / FM广播的第三天线电路中,天线的输出信号被分成两部分,一部分通过由电容器和线圈组成的串行FM谐振电路(30)提供给FM带滤波器(12) 。 输出信号的另一部分被提供给AM带滤波器(34)。