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    • 16. 发明授权
    • Rolled edge compact range reflectors
    • 滚边紧凑型反射镜
    • US06339393B1
    • 2002-01-15
    • US09619830
    • 2000-07-20
    • Walter D. BurnsideDavid SteinbergerTeh-Hong LeeKevin Sickles
    • Walter D. BurnsideDavid SteinbergerTeh-Hong LeeKevin Sickles
    • H01Q1514
    • H01Q15/16H01Q19/022
    • The present invention includes rolled edge compact range reflectors and reflector systems. This invention also includes machines or electronic apparatus using these aspects of the invention. The present invention also includes methods and processes for making and using these devices and systems. In a preferred embodiment, lightweight foam panels are added to the periphery of a sharp edge terminated compact range reflector. These foam panels may be shaped using simple two-dimensional cutting apparatus. The foam panels are then preferably positioned around the edge of the reflector with the planar edges of the foam pieces abutting one another so as to form a substantially continuous rounded edge to the reflector. The edge may then be shaped, filled, sanded, or coated to improve performance of the resultant reflector.
    • 本发明包括卷边紧凑范围反射器和反射器系统。 本发明还包括使用本发明的这些方面的机器或电子设备。 本发明还包括制造和使用这些装置和系统的方法和方法。 在优选实施例中,轻质泡沫板被添加到锋利边缘端接的紧凑范围反射器的周边。 这些泡沫板可以使用简单的二维切割装置成型。 然后,泡沫板优选地围绕反射器的边缘定位,其中泡沫块的平面边缘彼此邻接,以便形成到反射器的基本上连续的圆形边缘。 然后可以将边缘成型,填充,砂磨或涂覆,以改善所得反射器的性能。
    • 19. 发明授权
    • Tapered anechoic chamber
    • 锥形消声室
    • US06437748B1
    • 2002-08-20
    • US09619782
    • 2000-07-20
    • Walter D. BurnsideEric K. WaltonStephen EssmanWilhelmus Theunissen
    • Walter D. BurnsideEric K. WaltonStephen EssmanWilhelmus Theunissen
    • G01R2908
    • G01R29/105
    • The present invention includes tapered anechoic chambers and chamber systems. This invention also includes machines or electronic apparatus using these aspects of the invention. The present invention also includes methods and processes for using these devices and systems. In a preferred embodiment, a TEM antenna is utilized that is terminated by a resistive card, or R-card. This makes for a very broadband antenna that may be used to properly illuminate the test zone in a tapered chamber without changing the feed antenna. A preferred chamber utilizes an absorber layout that has never been applied to a tapered chamber, called a Chebyshev absorber layout. The concept is to place the wedge absorber tips at different heights relative to the mounting side wall and pyramidal absorber tips at different heights relative to the back wall. In this pattern, wave reflections off the pyramid tips and valleys behave very much like reflections in a multi-section transmission line. Using this Chebyshev layout around the test zone, the test zone fields will be very clean of stray signals and the polarization will be dictated by the feed horn. Also, it is then not necessary to use very thick absorber for low frequency applications, which tend to deteriorate over time. A preferred chamber also comprises a design wherein an entire tip portion of the tapered section is a separate unit. This unit is preferably designed to rotate on a system of rollers positioned between the unit and the main chamber. The result is that the polarization of the chamber can be easily changed from vertical to horizontal by simply rotating the feed structure, which can be done without disconnecting any cables to the feed.
    • 本发明包括锥形消声室和室系统。 本发明还包括使用本发明的这些方面的机器或电子设备。 本发明还包括使用这些装置和系统的方法和方法。 在优选实施例中,利用由电阻卡或R卡端接的TEM天线。 这使得可以用于在不改变馈电天线的情况下在锥形室中适当地照亮测试区域的非常宽的天线。 优选的室采用从未被应用于称为切比雪夫吸收器布局的锥形室的吸收体布局。 该概念是将楔形吸收器尖端相对于相对于后壁的不同高度处的安装侧壁和锥体吸收器尖端放置在不同的高度处。 在这种模式中,金字塔尖端和谷底的波反射表现得非常像多段传输线中的反射。 在测试区周围使用切比雪夫布局,测试区域将非常干净的杂散信号,极化将由馈电喇叭决定。 此外,不需要使用非常厚的吸收剂用于低频应用,其随时间而趋于劣化。 优选的腔室还包括其中锥形部分的整个尖端部分是单独的单元的设计。 该单元优选设计成在位于单元和主室之间的辊系统上旋转。 结果是,通过简单地旋转馈送结构,可以容易地将腔室的极化从垂直方向改变为水平,这可以在不断开任何馈线的电缆的情况下完成。