公开(公告)号：US07649505B2

公开(公告)日：2010-01-19

申请号：US11826100

申请日：2007-07-12

申请人： John L. Schadler

发明人： John L. Schadler

IPC分类号： H01Q1/12

CPC分类号： H01Q21/26 ,  H01Q1/005 ,  H01Q1/246 ,  H01Q1/427 ,  H01Q21/24

摘要： A circularly polarized, omnidirectional, corporate-feed pylon antenna uses multiple helically-oriented dipoles in each bay, and includes a vertical and diagonal support arrangement of simple structural shapes configured to provide a frame strong enough to sustain mechanical top loads applied externally. The radiators in each bay fit within the vertical supports. The radiators are integrally formed with cross-braces, and are fed with manifold feed straps incorporating tuning paddles. A single cylindrical radome surrounds the radiative parts and the vertical supports. The antenna admits of application to the upper L-band at the full FCC-allowed ERP. Beam tilt, null fill, and vertical null can be readily accommodated.

摘要翻译： 圆极化的全向公司馈线塔天线在每个间隔中使用多个螺旋取向的偶极子，并且包括简单结构形状的垂直和对角支撑布置，其被配置为提供足够强的框架以承受外部施加的机械顶部负载。 每个舱中的散热器配合在垂直支架内。 散热器与交叉支架一体形成，并配有带有调节桨的歧管进料带。 单个圆柱形雷达罩围绕辐射部分和垂直支撑。 天线允许在完整的FCC允许的ERP上应用于上L波段。 光束倾斜，零填充和垂直零点可以容易地适应。

公开(公告)号：US20080036683A1

公开(公告)日：2008-02-14

申请号：US11826100

申请日：2007-07-12

申请人： John L. Schadler

发明人： John L. Schadler

IPC分类号： H01Q1/12

CPC分类号： H01Q21/26 ,  H01Q1/005 ,  H01Q1/246 ,  H01Q1/427 ,  H01Q21/24

摘要： A circularly polarized, omnidirectional, corporate-feed pylon antenna uses multiple helically-oriented dipoles in each bay, and includes a vertical and diagonal support arrangement of simple structural shapes configured to provide a frame strong enough to sustain mechanical top loads applied externally. The radiators in each bay fit within the vertical supports. The radiators are integrally formed with cross-braces, and are fed with manifold feed straps incorporating tuning paddles. A single cylindrical radome surrounds the radiative parts and the vertical supports. The antenna admits of application to the upper L-band at the full FCC-allowed ERP. Beam tilt, null fill, and vertical null can be readily accommodated.

摘要翻译： 圆极化的全向公司馈线塔天线在每个间隔中使用多个螺旋取向的偶极子，并且包括简单结构形状的垂直和对角支撑布置，其被配置为提供足够强的框架以承受外部施加的机械顶部负载。 每个舱中的散热器配合在垂直支架内。 散热器与交叉支架一体形成，并配有带有调节桨的歧管进料带。 单个圆柱形雷达罩围绕辐射部分和垂直支撑。 天线允许在完整的FCC允许的ERP上应用于上L波段。 光束倾斜，零填充和垂直零点可以容易地适应。

公开(公告)号：US07327325B2

公开(公告)日：2008-02-05

申请号：US11499644

申请日：2006-09-29

申请人： John L. Schadler

发明人： John L. Schadler

IPC分类号： H01Q9/16

CPC分类号： H01Q13/20 ,  H01Q1/246 ,  H01Q1/42 ,  H01Q9/28 ,  H01Q21/10

摘要： A vertically polarized traveling wave antenna is omnidirectional, bottom-mounted, and bottom-fed. A robust center coax provides a self-supporting mechanical structure. Multiple dipoles are capacitively coupled to the coax in quads, with a first two dipoles placed on opposite sides of the center coax and spaced by a quarter wavelength along the coax from the second two, which couple at right angles to the first two. This matched-layer spacing cancels the reactive components of the impedances of the dipoles. Beam tilt is readily incorporated over a wide range by adjusting layer spacing to add phase taper. All dipoles are oriented parallel to the coax axis, with opposite “hot” (center coupled) dipole elements oriented oppositely to each other. A radiated signal thus has rotating phase, when viewed from above, but is vertically polarized at each azimuth. A lightweight radome, provided for weather protection, is not needed for structural integrity.

摘要翻译： 垂直极化行波天线是全向，底部安装和底部馈电。 坚固的中心同轴电缆提供自支撑的机械结构。 多个偶极子以四边形电容耦合到同轴电缆，其中前两个偶极子放置在中心同轴电缆的相对侧上，并沿着与第二两个直角耦合的第二个二极管的同轴电缆间隔四分之一波长。 该匹配层间隔消除偶极子阻抗的无功分量。 通过调节层间距以增加相位锥度，光束倾斜容易在宽范围内结合。 所有偶极子平行于同轴轴线定向，相反的“热”（中心耦合）偶极子元件彼此相对定向。 因此，当从上方观察时，辐射信号具有旋转相位，但在每个方位角处被垂直极化。 为了结构完整性，不需要一个用于天气保护的轻型雷达罩。

公开(公告)号：US06914579B2

公开(公告)日：2005-07-05

申请号：US10396818

申请日：2003-03-26

申请人： John L. Schadler

发明人： John L. Schadler

IPC分类号： H01Q20060101 ,  H01Q1/12 ,  H01Q1/24 ,  H01Q1/36 ,  H01Q1/52 ,  H01Q21/24 ,  H01Q25/00

CPC分类号： H01Q21/24 ,  H01Q1/1242 ,  H01Q1/246 ,  H01Q1/36 ,  H01Q1/52 ,  H01Q25/001

摘要： Each of a pair of antennas for broadcasting has multiple elements arranged vertically on the same tower. The antennas transmit circularly polarized signals of opposite polarization. The opposite circular polarization of the radiated signals increases their mutual isolation and permits broadcast of conventional FM-band signals and digital FM at the same frequency. The polarization technique allows the elements of the two antennas to share an aperture without degradation of function.

摘要翻译： 用于广播的一对天线中的每一个天线垂直地布置在同一塔上。 天线发射具有相反极化的圆偏振信号。 辐射信号的相反圆形极化增加了它们的相互隔离，并允许以相同的频率广播常规的FM频带信号和数字FM。 极化技术允许两个天线的元件共享孔径而不降低功能。

公开(公告)号：US06762730B2

公开(公告)日：2004-07-13

申请号：US10263684

申请日：2002-10-04

申请人： John L. Schadler

发明人： John L. Schadler

IPC分类号： H01Q1310

CPC分类号： H01Q21/24 ,  H01Q1/246 ,  H01Q13/08 ,  H01Q21/08 ,  H01Q21/10

摘要： An antenna includes conductive panels pierced with bow-tie-shaped cutouts (long axis vertical) fed at the narrow point of the cutout to achieve horizontal polarization. Each two panels are configured at right angles as an ‘X’ when viewed from above. The radiation pattern from each panel is a peanut shape; with a hybrid phase shifter to feed each pair in quadrature, the combined pattern is omnidirectional. Multiple crossed-cutout modules can be arranged vertically and fed in parallel to achieve high vertical directivity. The general design permits outdoor application with no supporting mast. The general design is compatible with the power capability and frequency range needed for commercial UHF television broadcast.

摘要翻译： 天线包括在切口的窄点处馈送的弓形切口（长轴垂直）刺穿的导电板，以实现水平极化。 当从上方观察时，每两个面板以直角配置为“X”。 每个面板的辐射图是花生形状; 使用混合移相器以正交方式馈送每对，组合模式是全向的。 可以垂直布置多个交叉切口模块，并行进给以实现高垂直方向性。 一般设计允许户外应用无支撑桅杆。 一般设计与商用UHF电视广播所需的功率能力和频率范围兼容。

公开(公告)号：US06320555B1

公开(公告)日：2001-11-20

申请号：US09735910

申请日：2000-12-14

申请人： John L. Schadler

发明人： John L. Schadler

IPC分类号： H01Q1312

CPC分类号： H01Q21/0062

摘要： A slotted coaxial antenna design that accomplishes four-way branch feeding without the use of feedlines, is disclosed. In a preferred embodiment, the antenna design is based on a number of layered coaxial feeds where each layer feeds the next outer layer. The internally branch fed slotted coaxial antenna design produces substantially no beam sway over at least four television channels, can accommodate pressurizing for increased power handling, and provides desirable antenna output response performance suitable for digital TV transmission and NTSC antenna systems.

摘要翻译： 公开了一种在不使用馈线的情况下实现四通分支馈线的开槽同轴天线设计。 在优选实施例中，天线设计基于多层分层同轴馈送，其中每层馈送下一个外层。 内部分支馈线槽同轴天线设计在至少四个电视频道上基本上不产生光束摆动，可以适应加压以增加功率处理，并且提供适合于数字电视传输和NTSC天线系统的期望的天线输出响应性能。

公开(公告)号：US6137448A

公开(公告)日：2000-10-24

申请号：US197042

申请日：1998-11-20

申请人： John L. Schadler

发明人： John L. Schadler

IPC分类号： H01Q13/22 ,  H01Q21/00 ,  H01Q13/12

CPC分类号： H01Q21/0043 ,  H01Q13/22

摘要： A digital signal, beam radiation antenna consisting of a cylindrical mast having an inner tubular conductor and an outer tubular conductor, and means for exciting said inner conductor to establish a traveling wave internal to said antenna. Moreover, there are spaced slots in said outer conductor defining an illumination aperture coupled to the inner conductor and for radiating the beam from the antenna. This establishes the illumination along the aperture so as to produce a high beam tilt of the order of 0.6-3.5 degrees from the horizontal for the beam radiation; further, for varying the phase from layer to layer, such that there are substantially no null variations in the elevation pattern of the beam.

摘要翻译： 一种由具有内部管状导体和外部管状导体的圆柱形桅杆组成的数字信号束辐射天线，以及用于激发所述内部导体以在所述天线内部建立行进波的装置。 此外，在所述外部导体中存在间隔开的狭缝，其限定了连接到内部导体并用于从天线辐射光束的照明孔。 这建立了沿着孔径的照明，以便产生距射束辐射的水平方向为0.6-3.5度的高光束倾斜; 此外，为了从层到层改变相位，使得梁的高度图案基本上没有零变化。

公开(公告)号：US4988961A

公开(公告)日：1991-01-29

申请号：US392223

申请日：1989-08-10

申请人： John L. Schadler

发明人： John L. Schadler

IPC分类号： H01P5/103 ,  H01Q1/50

CPC分类号： H01Q1/50 ,  H01P5/103

摘要： A technique and arrangement for lowering the mismatch normally obtained, thereby increasing the bandwidth, in a standard rectangular-to-coaxial waveguide "T" junction coupling in an antenna system, such arrangement including, in a T-junction of a coaxial transmission line to a waveguide transmission line in which measured impedance values in the range of approximate 30 MHz in the UHF band must be within a 1.1:1 circle of voltage standing wave ratio, the improvement which achieves minimal reflection over said range of frequencies, according to which a diconical slug is connected between an upper and lower portion of the coaxial transmission line and mounted for support within the structure of the waveguide transmission line, and in which said diconical slug includes back-to-back conical sections such that the large diameter rims of the sections confront each other.

摘要翻译： 一种用于降低正常获得的失配的技术和装置，从而增加了在天线系统中的标准矩形到同轴波导“T”结耦合中的带宽，这种布置包括在同轴传输线到T 其中在UHF频带中约30MHz的范围内的测量阻抗值必须在电压驻波比的1.1:1的范围内的波导传输线，其改进在所述频率范围内实现最小的反射，根据该波导传输线 双锥形插头连接在同轴传输线的上部和下部之间，并被安装用于支撑在波导传输线的结构内，并且其中所述双锥形部分包括背对背锥形部分，使得大直径轮缘 部分面对面。