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1. 发明授权

US6137998A Shielding for radiotelephones with retractable antennas 失效
标题翻译：屏蔽可伸缩天线的无线电话
公开(公告)号：US6137998A
公开(公告)日：2000-10-24
申请号：US994419
申请日：1997-12-19
申请人： Howard E. Holshouser , Robert A. Sadler
发明人： Howard E. Holshouser , Robert A. Sadler
IPC分类号： H01Q1/24 , H01Q1/52 , H01Q9/36 , H04B1/03
CPC分类号： H01Q1/526 , H01Q1/244
摘要： Shields for radiotelephones with a retractable antenna include a conductive tubular antenna guide operably associated with an electronic ground, and preferably configured to form an inductor or capacitor in a matching circuit operable when the antenna is in the retracted position. Associated methods include directing RF radiation produced by the antenna positioned internal to the radiotelephone along a longitudinal exit path out of the radiotelephone.
摘要翻译：具有可伸缩天线的无线电话机的屏蔽包括可操作地与电子接地相关联的导电管状天线引导件，并且优选地被配置为在天线处于缩回位置时可操作的匹配电路中形成电感器或电容器。相关方法包括将位于无线电话机内部的天线产生的RF辐射沿着无线电话机的纵向出口路径引导。

2. 发明授权

US5995052A Flip open antenna for a communication device 失效
标题翻译：翻开通信设备的天线
公开(公告)号：US5995052A
公开(公告)日：1999-11-30
申请号：US80074
申请日：1998-05-15
申请人： Robert A. Sadler , Gerard Hayes , John T. Sadler
发明人： Robert A. Sadler , Gerard Hayes , John T. Sadler
IPC分类号： H01Q1/24 , H01Q1/36 , H01Q5/00 , H01Q5/357 , H04M1/02 , H04M1/00
CPC分类号： H01Q1/362 , H01Q1/242 , H01Q1/245 , H01Q5/357
摘要： An antenna for a communication device including a first flip having an antenna element and pivotally mounted on a housing to move from a closed position adjacent to the housing to an operational position angularly space from the housing. A second flip having a conductive element as a ground plane is pivotally mounted on the housing and moves between a closed position adjacent the housing and an open position angularly spaced from both the housing and the first flip. When the first and second flips are in the closed position, they cover the controls and no antenna is exposed on the exterior of the housing. In the operational position, the antenna element and the conductive element form an antenna optimally tuned to the frequency of the wireless network that is less subject to interference by the user.
摘要翻译：一种用于通信设备的天线，包括具有天线元件并可枢转地安装在壳体上的第一翻盖，以从邻近壳体的关闭位置移动到与壳体成角度空间的操作位置。具有导电元件作为接地平面的第二翻转被枢转地安装在壳体上，并且在与壳体相邻的关闭位置和与壳体和第一翻盖两个角度间隔开的打开位置之间移动。当第一和第二翻转处于关闭位置时，它们覆盖控制器，并且在壳体的外部没有天线暴露。在操作位置，天线元件和导电元件形成最佳调谐到无线网络的频率的天线，该天线不受用户的干扰。

3. 发明授权

US5536666A Method for fabricating a planar ion-implanted GaAs MESFET with improved open-channel burnout characteristics 失效
标题翻译：用于制造具有改进的开路通道烧坏特性的平面离子注入GaAs MESFET的方法
公开(公告)号：US5536666A
公开(公告)日：1996-07-16
申请号：US405174
申请日：1995-03-16
申请人： Dain C. Miller , Robert A. Sadler , Andrew H. Peake
发明人： Dain C. Miller , Robert A. Sadler , Andrew H. Peake
IPC分类号： H01L29/872 , H01L21/265 , H01L21/285 , H01L21/338 , H01L29/08 , H01L29/47 , H01L29/812
CPC分类号： H01L29/66878 , H01L21/28587 , H01L29/0891
摘要： An improved substantially planar and easy to manufacture field-effect-transistor (FET) includes a guard region between an n+ drain region and the remainder of the device, which enables the breakdown voltage of the FET to be substantially increased under open-channel conditions without adversely impacting other important device characteristics.
摘要翻译：改进的基本平坦且易于制造的场效应晶体管（FET）包括在n +漏极区域和器件的其余部分之间的保护区域，这使得在开放通道条件下FET的击穿电压能够显着增加，而没有不利地影响其他重要的设备特性。

4. 发明授权

US4962050A GaAs FET manufacturing process employing channel confining layers 失效
标题翻译：采用沟道限制层的GaAs FET制造工艺
公开(公告)号：US4962050A
公开(公告)日：1990-10-09
申请号：US280780
申请日：1988-12-06
申请人： Arthur E. Geissberger , Robert A. Sadler , Gregory E. Menk , Matthew L. Balzan
发明人： Arthur E. Geissberger , Robert A. Sadler , Gregory E. Menk , Matthew L. Balzan
IPC分类号： H01L29/808 , H01L21/337 , H01L21/338 , H01L29/10 , H01L29/778 , H01L29/80 , H01L29/812
CPC分类号： H01L29/802 , H01L29/1029 , H01L29/1075 , Y10S148/015 , Y10S148/084 , Y10S148/105 , Y10S148/141
摘要： A high speed GaAs FET is provided by forming a sandwiched GaAs channel between AlGaAs layers and employing an Si implant to provide channel doping for the GaAs channel. The poor activation efficiency of Si in AlGaAs relative to its activation efficiency in GaAs provides a channel having a higher active dopant concentration than exists in the adjacent sandwiching layers. This tends to enhance conductivity in the channel relative to the sandwiching layers.
摘要翻译：通过在AlGaAs层之间形成夹层的GaAs沟道，并采用Si注入来提供GaAs沟道的沟道掺杂来提供高速GaAs FET。 AlGaAs中Si的活化效率相对于GaAs在GaAs中的活化效率差，提供了一种具有比存在于相邻夹层中的活性掺杂浓度高的沟道。这倾向于增强通道中相对于夹层的导电性。

5. 发明授权

US4847212A Self-aligned gate FET process using undercut etch mask 失效
标题翻译：使用底切蚀刻掩模的自对准栅极FET工艺
公开(公告)号：US4847212A
公开(公告)日：1989-07-11
申请号：US137309
申请日：1987-12-23
申请人： Matthew L. Balzan , Arthur E. Geissberger , Robert A. Sadler
发明人： Matthew L. Balzan , Arthur E. Geissberger , Robert A. Sadler
IPC分类号： H01L29/812 , H01L21/265 , H01L21/285 , H01L21/338 , H01L21/8252 , H01L29/417 , H01L29/47
CPC分类号： H01L29/66878 , H01L21/28581 , H01L21/28587 , H01L21/8252 , H01L29/475 , H01L29/66848 , Y10S148/105 , Y10S148/131 , Y10S148/143
摘要： The provision of an intermediately doped transition region between respective n+ implanted source and drain regions in a GaAs FET and the lightly doped channel region under the gate permits device optimizaiton for low source and drain resistance in EFET's while employing the same n+ implant for source and drain optimization in DFET's while also maintaining the same n+ to gate contact spacing in both device types. Additionally, in high frequency operation of an asymmetrically implanted FET, the tapered doping profile offered by the transition region on the drain side of the gate provides high transconductance without sacrificing high output resistance. The transition region can be provided in a self-aligned implant employing dielectric sidewall spacers and the n+ implant can be self-aligned with an etch mask employed in gate definition.
摘要翻译：在GaAs FET中的相应n +注入源极和漏极区域之间提供中间掺杂的过渡区域以及栅极下的轻掺杂沟道区域允许器件优化EFET中的低源极和漏极电阻，同时使用相同的n +注入源和漏极在DFET中进行优化，同时在两种器件类型中也保持相同的n +与栅极接触间距。另外，在非对称注入的FET的高频工作中，栅极漏极侧的过渡区提供的锥形掺杂分布提供了高的跨导而不牺牲高输出电阻。可以使用电介质侧壁间隔物在自对准植入物中提供过渡区域，并且n +注入可以与栅极定义中采用的蚀刻掩模自对准。

6. 发明授权

US06662028B1 Multiple frequency inverted-F antennas having multiple switchable feed points and wireless communicators incorporating the same 有权
标题翻译：具有多个可切换馈电点的多频倒频F天线和包含该可转换馈电点的无线通信器
公开(公告)号：US06662028B1
公开(公告)日：2003-12-09
申请号：US09576092
申请日：2000-05-22
申请人： Gerard James Hayes , Robert A. Sadler
发明人： Gerard James Hayes , Robert A. Sadler
IPC分类号： H04M100
CPC分类号： H01Q9/0442 , H01Q1/243 , H01Q9/0421 , H01Q9/14
摘要： Compact, planar inverted-F antennas are provided that radiate within multiple frequency bands for use within communications devices, such as radiotelephones. Multiple signal feeds extend from a conductive element in respective spaced-apart locations. A respective plurality of micro-electromechanical systems (MEMS) switches are electrically connected to the signal feeds and are configured to selectively connect the respective signal feeds to ground or RF circuitry. In addition, each MEMS switch can be opened to electrically isolate a respective signal feed.
摘要翻译：提供紧凑的平面倒F天线，其辐射在多个频带内以用于通信设备（例如无线电话机）中。多个信号馈送在相应间隔开的位置中从导电元件延伸。相应的多个微机电系统（MEMS）开关电连接到信号馈送，并且被配置为选择性地将相应的信号馈送连接到接地或RF电路。另外，可以打开每个MEMS开关以电隔离相应的信号馈送。

7. 发明授权

US06529749B1 Convertible dipole/inverted-F antennas and wireless communicators incorporating the same 有权
标题翻译：可转换偶极/倒F天线和包含该天线的无线通信器
公开(公告)号：US06529749B1
公开(公告)日：2003-03-04
申请号：US09575838
申请日：2000-05-22
申请人： Gerard James Hayes , Robert A. Sadler
发明人： Gerard James Hayes , Robert A. Sadler
IPC分类号： H01Q148
CPC分类号： H01Q9/20 , H01Q1/243 , H01Q9/0421 , H01Q9/065 , H01Q9/30
摘要： Multiple frequency band antennas having first and second conductive branches are provided for use within wireless communications devices, such as radiotelephones. First and second conductive branches are in adjacent, spaced-apart relationship. First and second signal feeds extend from the first conductive branch and terminate at respective first and second switches. Third and fourth signal feeds extend from the second conductive branch and terminate at respective third and fourth switches. The first and second conductive branches can jointly radiate as a dipole antenna in a first frequency band when the first and fourth switches are open, and when the second and third switches electrically connect the second and third feeds to a first receiver/transmitter. Antenna structure may be changed by reconfiguring the various switches. For example, the first and second conductive branches may radiate separately as respective inverted-F antennas, or may radiate independently as monopole antennas.
摘要翻译：提供具有第一和第二导电分支的多个频带天线，用于无线电通信设备，例如无线电话机中。第一和第二导电分支处于相邻且间隔的关系。第一和第二信号馈送从第一导电支路延伸并在相应的第一和第二开关处终止。第三和第四信号馈送从第二导电支路延伸并在相应的第三和第四开关处终止。当第一和第四开关断开时，第一和第二导电分支可以作为偶极天线共同辐射在第一频带中，并且当第二和第三开关将第二和第三馈电电连接到第一接收器/发射器时。可以通过重新配置各种开关来改变天线结构。例如，第一和第二导电分支可以分别作为相应的倒F天线辐射，或者可以独立地作为单极天线辐射。

8. 发明授权

US06417816B2 Dual band bowtie/meander antenna 有权
标题翻译：双带蝴蝶结/弯曲天线
公开(公告)号：US06417816B2
公开(公告)日：2002-07-09
申请号：US09766166
申请日：2001-01-19
申请人： Robert A. Sadler , John M. Spall
发明人： Robert A. Sadler , John M. Spall
IPC分类号： H01Q928
CPC分类号： H01Q1/38 , H01Q1/243 , H01Q9/16 , H01Q9/26 , H01Q9/28 , H01Q9/285 , H01Q19/108
摘要： An internal dipole bowtie/meander antenna for a mobile terminal is capable of operating in two distinct RF bands. The antenna includes a resonating element and a ground element positioned on opposite sides of a dielectric material. The dielectric material is positioned generally perpendicular to a ground plane of the antenna. Tuning elements may be added to vary the coupling of the antenna elements to the ground plane.
摘要翻译：用于移动终端的内部偶极子/弯曲天线能够在两个不同的RF频带中操作。天线包括谐振元件和位于电介质材料的相对侧上的接地元件。电介质材料大致垂直于天线的接地平面定位。可以添加调谐元件以改变天线元件与接地平面的耦合。

9. 发明授权

US06204819B1 Convertible loop/inverted-f antennas and wireless communicators incorporating the same 有权
标题翻译：可转换回路/倒F天线和包含该天线的无线通信器
公开(公告)号：US06204819B1
公开(公告)日：2001-03-20
申请号：US09576086
申请日：2000-05-22
申请人： Gerard James Hayes , Robert A. Sadler
发明人： Gerard James Hayes , Robert A. Sadler
IPC分类号： H01Q904
CPC分类号： H01Q9/0421 , H01Q1/243 , H01Q1/38 , H01Q7/00
摘要： Multiple frequency band antennas having first and second conductive branches are provided for use within wireless communications devices, such as radiotelephones. A first conductive branch has first and second feeds extending therefrom that terminate at respective first and second micro-electromechanical systems (MEMS) switches. A second conductive branch is in adjacent, spaced-apart relationship with the first conductive branch. One end of the second conductive branch terminates at a third MEMS switch and the opposite end of the second conductive branch is connected to the first conductive branch via a fourth MEMS switch. The fourth MEMS switch is configured to be selectively closed to electrically connect the first and second conductive branches such that the antenna radiates as a loop antenna in a first frequency band. The fourth switch is also configured to open to electrically isolate the first and second conductive branches such that the antenna radiates as an inverted-F antenna in a second frequency band different from the first frequency band.
摘要翻译：提供具有第一和第二导电分支的多个频带天线，用于无线电通信设备，例如无线电话机中。第一导电分支具有从其延伸的第一和第二馈电，其终止于相应的第一和第二微机电系统（MEMS）开关。第二导电分支与第一导电分支处于相互间隔开的关系。第二导电支路的一端终止于第三MEMS开关，第二导电支路的相对端通过第四MEMS开关连接到第一导电支路。第四MEMS开关被配置为选择性地闭合以电连接第一和第二导电分支，使得天线作为第一频带中的环形天线辐射。第四开关还被配置为打开以电隔离第一和第二导电分支，使得天线作为与第一频带不同的第二频带中的倒F天线辐射。

10. 发明授权

US06198943B1 Parasitic dual band matching of an internal looped dipole antenna 有权
标题翻译：内部环形偶极天线的寄生双频带匹配
公开(公告)号：US06198943B1
公开(公告)日：2001-03-06
申请号：US09313044
申请日：1999-05-17
申请人： Robert A. Sadler , Gerard Hayes
发明人： Robert A. Sadler , Gerard Hayes
IPC分类号： H04B138
CPC分类号： H01Q9/26 , H01Q1/243 , H01Q5/371 , H01Q5/378
摘要： An internal, loop dipole antenna for a mobile terminal is capable of operating in two distinct RF bands. The antenna includes a resonating element and a parasitic tuning element. The resonating element has a looped, dipole configuration including a primary tuning loop, a secondary tuning loop, and a ground loop. The parasitic tuning element is disposed in a plane spaced from the plane of the resonating element. The parasitic element includes a first portion that generally follows the ground loop on the resonating element, and a second portion that bisects the primary tuning loop on the resonating element. First and second tuning arms extend along opposing ends of the parasitic tuning element. The length of the tuning arms is adjusted to tune the resonance of the antenna in the primary and secondary operating bands.
摘要翻译：用于移动终端的内部环形偶极天线能够在两个不同的RF频带中操作。天线包括谐振元件和寄生调谐元件。谐振元件具有环形偶极配置，其包括初级调谐环路，二次调谐环路和接地回路。寄生调谐元件设置在与谐振元件的平面间隔开的平面中。寄生元件包括通常沿着谐振元件上的接地回路的第一部分和将谐振元件上的主调谐回路平分的第二部分。第一和第二调谐臂沿着寄生调谐元件的相对端延伸。调整调谐臂的长度以调整天线在初级和次级操作频段中的谐振。

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