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公开(公告)号：US5909198A
公开(公告)日：1999-06-01
申请号：US993981
申请日：1997-12-18
摘要： A chip antenna includes a main body and a pedestal. The main body is provided with a rectangular-parallelopiped base member with a relative dielectric constant of about 6.0 having barium oxide, aluminum oxide, and silica as main components; a conductor wound helically inside the base member in the longitudinal direction of the base member; a power-feed terminal formed on a surface of the base member, for applying a voltage to the conductor; and an open terminal formed on a surface of the base member. The pedestal is provided with a base member made from a glass epoxy resin having a relative dielectric constant of about 4.8; and external electrodes extending from opposing ends on surfaces of the base member toward adjacent side faces. The power-feed terminal and the open terminal of the main body are electrically and mechanically connected to the external electrodes of the pedestal by soldering, respectively.
摘要翻译： 芯片天线包括主体和基座。 主体设置有具有约6.0的相对介电常数的具有氧化钡，氧化铝和二氧化硅作为主要成分的矩形平行六面体基底构件; 在所述基底构件的基部构件的纵向方向上螺旋地缠绕的导体; 形成在所述基底构件的表面上的用于向所述导体施加电压的供电端子; 以及形成在所述基底构件的表面上的开放端子。 基座设置有由相对介电常数为约4.8的玻璃环氧树脂制成的基座部件; 以及外部电极，其从所述基底构件的相对端部延伸到相邻的侧面。 主体的供电端子和开路端子分别通过焊接电气机械地连接到基座的外部电极。
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公开(公告)号：US06711395B1
公开(公告)日：2004-03-23
申请号：US09694423
申请日：2000-10-23
IPC分类号： H04B126
CPC分类号： H03D7/1425 , H03D7/1433 , H03D7/1458 , H03D2200/0023
摘要： A receiving module and a TDMA-system receiver are adapted to broadening of bands of received signals and low frequencies of intermediate frequency signals. These apparatuses can be made compact and contribute to cost reduction. The receiving module is constituted of a low-noise amplifier, a high frequency LC filter, a Gilbert-cell type mixer, and baluns. A signal received by an antenna is amplified by the low-noise amplifier and is passed through the LC filter. After that, the signal is mixed with a local oscillation signal by the Gilbert-cell type mixer to be converted into an intermediate frequency signal.
摘要翻译： 接收模块和TDMA系统接收机适用于加宽接收信号的频带和中频信号的低频。 这些装置可以制造得紧凑并有助于降低成本。 接收模块由低噪声放大器，高频LC滤波器，吉尔伯特单元型混频器和平衡 - 不平衡变换器构成。 由天线接收的信号由低噪声放大器放大并通过LC滤波器。 之后，该信号与Gilbert-cell型混频器与本地振荡信号混合，以转换成中频信号。
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3.发明授权公开(公告)号：US06700792B1
公开(公告)日：2004-03-02
申请号：US09505258
申请日：2000-02-16
IPC分类号： H05K103
CPC分类号： H03H7/1758 , H03F1/22 , H03F2200/171 , H03F2200/294 , H03F2200/372 , H03H7/0115 , H03H7/0123 , H03H7/1725 , H03H2001/0085 , H05K1/0237 , H05K1/0298 , H05K1/0306 , H05K1/181
摘要： A high-frequency composite component can achieve reduction in size and weight, while providing high performance. A portable wireless device incorporates the high-frequency composite component, including a multi-layer substrate, with a low noise amplifier LNA and a band pass filter BPF constituting parts of a high-frequency circuit, with an input terminal, an output terminal, and control terminals on the substrate. The low noise amplifier LNA is constituted of transistors, an inductor, capacitors, and resistors. The band pass filter BPF is constituted of strip lines, an inductor, and capacitors. The low noise amplifier LNA and the band pass filter BPF are connected with each other within the substrate via a matching capacitor. The amplifier ground and filter ground are separated within the substrate and connected respectively to separate ground terminals on the substrate. In another embodiment, the high-frequency composite component may include a mixer and a high-pass filter integrated with a multi-layer substrate.
摘要翻译： 高频复合组件可以实现尺寸和重量的减小，同时提供高性能。 一种便携式无线设备将包括多层基板的高频复合元件与构成高频电路部分的低噪声放大器LNA和带通滤波器BPF结合，具有输入端子，输出端子和 控制端子在基板上。 低噪声放大器LNA由晶体管，电感器，电容器和电阻器构成。 带通滤波器BPF由带状线，电感器和电容器构成。 低噪声放大器LNA和带通滤波器BPF通过匹配电容器在衬底内彼此连接。 放大器接地和滤波器接地在衬底内分开并分别连接到衬底上的分离的接地端子。 在另一个实施例中，高频复合元件可以包括与多层基板集成的混合器和高通滤波器。
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公开(公告)号：US06034640A
公开(公告)日：2000-03-07
申请号：US53550
申请日：1998-04-01
IPC分类号： H01Q23/00 , H01Q1/24 , H01Q1/36 , H01Q1/38 , H01Q5/00 , H01Q9/00 , H01Q9/04 , H01Q9/14 , H04B1/18 , H04B1/38 , H04B1/3822
CPC分类号： H01Q9/145 , H01Q1/362 , H01Q1/38 , H01Q5/50 , H01Q9/0442
摘要： The invention provides an antenna device, comprising: an antenna body including a conductor, an equivalent circuit of said conductor comprising an inductive component and a resistive component in a series connection, wherein a frequency adjusting circuit including at least a parallel circuit of a switching element and a passive element is connected to said conductor of said antenna body. The antenna body is connected in series with said frequency adjusting circuit.The invention enable to provide a compact antenna device for use in a mobile communication apparatus that performs transmission and reception on frequencies in a wide range.
摘要翻译： 本发明提供一种天线装置，包括：天线体，包括导体，所述导体的等效电路包括串联连接中的感应部件和电阻部件，其中频率调节电路至少包括开关元件的并联电路 并且无源元件连接到所述天线体的所述导体。 天线体与所述频率调整电路串联连接。 本发明能够提供一种在宽范围内的频率上进行发送和接收的移动通信装置中使用的紧凑型天线装置。
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公开(公告)号：US5204301A
公开(公告)日：1993-04-20
申请号：US906534
申请日：1992-06-30
CPC分类号： C04B35/49
摘要： A non-reduction type dielectric ceramic composition, which contains 100 parts by weight of (Ca.sub.1-x Sr.sub.x).sub.m (Zr.sub.1-y Ti.sub.y)O.sub.3 -zMnO.sub.2 -wSiO.sub.2 serving as a main component and 2 to 30 parts by weight of an additive which is a(LiO.sub.1.kappa. -RO)-(1-a)(BO.sub.3/2 -SiO.sub.2), where RO is at least one type of SrO, BaO and CaO, and a is not less than 0.01 nor more than 0.8 in terms of a molar ratio, and satisfies the following relationships in the composition formulas of the above described main component and additive: x, y and m satisfy the following relationships in terms of a molar ratio:x.ltoreq.x.ltoreq.1.00.ltoreq.y.ltoreq.0.20.9.ltoreq.m.ltoreq.1.1and z and w satisfy the following relationships when the amount of (Ca.sub.1-x Sr.sub.x).sub.m (Zr.sub.1-y Ti.sub.y)O.sub.3 is 100% by weight:0.1.ltoreq.z.ltoreq.5% by weight0.3.ltoreq.w.ltoreq.8% byw weight.
摘要翻译： 含有100重量份作为主要成分的（Ca1-xSrx）m（Zr1-yTiy）O3-zMnO2-wSiO2和2〜30重量份添加剂的非还原型电介质陶瓷组合物，其为 （LiO 1 kappa -RO） - （1-a）（BO 3/2 SiO 2），其中RO为SrO，BaO和CaO中的至少一种，a为摩尔浓度，不小于0.01，不大于0.8 并且在上述主要组分和添加剂的组成式中满足以下关系：x，y和m以摩尔比满足以下关系：x X = 1.0 0 （Ca1-xSrx）m（Zr1-yTiy）O3的量为100重量％时，z和w满足以下关系：0.1
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