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1. 发明申请

WO1985002945A1 TRANSITION BETWEEN A CONTINUOUS AND A CORRUGATED CIRCULAR WAVEGUIDES FOR EFFICIENT LAUNCH OF SIGNALS IN TWO FREQUENCY BANDS 审中-公开
标题翻译：连续性和有效启动两个频率信号的圆形波形之间的过渡
公开(公告)号：WO1985002945A1
公开(公告)日：1985-07-04
申请号：PCT/BR1984000007
申请日：1984-12-27
申请人： TELECOMUNICACOES BRASILEIRAS S/A - TELEBRAS , GHOSH, Subir , PRATA JUNIOR, Aluizio
发明人： TELECOMUNICACOES BRASILEIRAS S/A - TELEBRAS
IPC分类号： H01Q13/02
CPC分类号： H01Q13/0216
摘要： The transition achieves transformation of the TE11 mode, the dominant signal carrier mode of a continuous waveguide (11), into the HE11 hybrid mode, the corresponding mode carrying signals in the corrugated structures, by employing a tapered waveguide transition of circular cross-section having dual-depth circumferencial corrugations (14, 15) in the interior boundary surface. The transition utilizes mutual resonance property of dual-depth corrugations at the port (12) which connects to continuous waveguide to achieve a satisfactory return loss in two bands. At the port (13) which is connected to the corrugated horn, whereas the quarter wavelength self resonance of the individual slots in the dual-depth corrugation configuration provides the desired HE11 hybrid mode under balanced hydrid condition in two bands. A gradual transition of the electrical characteristics is achieved along the length of the transition through an adjustment of the corrugation parameters. Excitation of higher order spurious modes can be maintained at a low level when properly chosen cross-sectional dimensions are considered along the length of the transition.
摘要翻译：该转变实现了将TE11模式（连续波导（11）的主要信号载波模式）转换为HE11混合模式，波形结构中的相应模式承载信号，通过采用具有圆形横截面的锥形波导过渡，具有在内部边界表面的双深度圆周波纹（14,15）。该转换在端口（12）处使用双重波纹的相互共振特性，其连接到连续波导，以在两个带中实现令人满意的回波损耗。在与波纹喇叭连接的端口（13）处，双重波纹结构中的单个槽的四分之一波长自谐振在两个频带的平衡环境条件下提供期望的HE11混合模式。通过调整波纹参数，沿着转换的长度实现电特性的逐渐转变。当沿转换长度考虑正确选择的横截面尺寸时，可以将较高阶杂散模式的激励维持在较低水平。

2. 发明申请

WO1985002065A1 DIRECTIONAL COUPLER FOR SEPARATION OF SIGNALS IN TWO FREQUENCY BANDS WHILE PRESERVING THEIR POLARIZATION CHARACTERISTICS 审中-公开
标题翻译：用于在保留其极化特性的情况下分离两个频段的信号的方向耦合器
公开(公告)号：WO1985002065A1
公开(公告)日：1985-05-09
申请号：PCT/BR1984000005
申请日：1984-10-24
申请人： TELECOMUNICAÇOES BRASILEIRAS S/A - TELEBRAS , GHOSH, Subir , PRATA, Junior, Aluizio
发明人： TELECOMUNICAÇOES BRASILEIRAS S/A - TELEBRAS
IPC分类号： H01P01/213
CPC分类号： H01P1/213
摘要： The coupler comprises a principal corrugated waveguide (10) and four identical secondary waveguides (11) regularly disposed on the perimeter of the principal waveguide and in such a way that the five axis are parallel. Coupling units (12) allow transfer of energy between principal and secondary waveguides. Due to reactance boundary conditions and size, only the HE11 mode in the higher frequency band and the EH11 mode in the lower frequency band can propagate in the principal waveguide. This perserves the polarization characteristics. Directional filtering is obtained by close agreement of phase constants in the different waveguides and 90 phase change between two successive coupling units in the higher frequency band, and evanescence or very low phase constant in the secondary waveguides in the low frequency band.
摘要翻译：耦合器包括主波导波导（10）和四个相同的次级波导（11），其规则地布置在主波导的周边上，并且使得五轴平行。耦合单元（12）允许在主波导和次波导之间传输能量。由于电抗边界条件和尺寸，只有较高频带中的HE11模式和较低频带中的EH11模式才能在主波导中传播。这就是维持极化特性。通过在不同波导中的相位常数和较高频带中的两个连续耦合单元之间的90°相位变化的近似一致以及低频带中的次级波导中的消逝或非常低的相位常数来获得方向滤波。

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