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    • 14. 发明授权
    • Low cost 2-D electronically scanned array with compact CTS feed and MEMS phase shifters
    • 低成本的2-D电子扫描阵列,具有紧凑的CTS馈电和MEMS移相器
    • US06677899B1
    • 2004-01-13
    • US10373941
    • 2003-02-25
    • Jar J. LeeClifton QuanBrian M. Pierce
    • Jar J. LeeClifton QuanBrian M. Pierce
    • H01Q300
    • H01Q3/36
    • A microelectromechanical system (MEMS) steerable electronically scanned lens array (ESA) antenna and method of frequency scanning are disclosed. The MEMS ESA antenna includes a MEMS E-plane steerable lens array and a MEMS H-plane steerable linear array. The MEMS E-plane steerable lens array includes first and second arrays of wide band radiating elements, and an array of MEMS E-plane phase shifter modules disposed between the first and second arrays of radiating elements. The MEMS H-plane steerable linear array includes a continuous transverse stub (CTS) feed array and an array of MEMS H-plane phase shifter modules at an input of the CTS feed array. The MEMS H-plane steerable linear array is disposed adjacent the first array of radiating elements of the MEMS E-plane steerable lens array for providing a planar wave front in the near field. The H-plane phase shifter modules shift RF signals input into the CTS feed array based on the phase settings of the H-plane phase shifter modules, and the E-plane phase shifter modules steer a beam radiated from the CTS feed array in an E-plane based on the phase settings of the E-plane phase shifter modules.
    • 公开了一种微机电系统(MEMS)可控电子扫描透镜阵列(ESA)天线和频率扫描方法。 MEMS ESA天线包括MEMS E平面可控透镜阵列和MEMS H平面可导向线性阵列。 MEMS E平面可控透镜阵列包括宽带辐射元件的第一和第二阵列,以及设置在辐射元件的第一和第二阵列之间的MEMS E平面移相器模块阵列。 MEMS H平面可导向线性阵列包括在CTS馈送阵列的输入处的连续横向短截线(CTS)馈电阵列和MEMS H平面移相器模块阵列。 MEMS H平面可导向线性阵列邻近MEMS E平面可控透镜阵列的第一辐射元件阵列设置,用于在近场提供平面波前。 H平面移相器模块基于H平面移相器模块的相位设置将输入到CTS馈送阵列的RF信号移位,并且E平面移相器模块将从CTS馈送阵列辐射的光束转向E 基于E平面移相器模块的相位设置。
    • 15. 发明授权
    • Wideband shielded coaxial to microstrip orthogonal launcher using distributed discontinuities
    • 宽带屏蔽同轴微带正交发射器使用分布式不连续性
    • US06236287B1
    • 2001-05-22
    • US09310525
    • 1999-05-12
    • Clifton QuanEdward L. RobertsonRosie M. JorgensonMark Y. HashimotoDavid E. Roberts
    • Clifton QuanEdward L. RobertsonRosie M. JorgensonMark Y. HashimotoDavid E. Roberts
    • H01P104
    • H01P5/085
    • A coaxial-to-microstrip vertical transition includes a dielectric substrate having formed on a first surface thereof a primary microstrip conductor trace, and on a second surface a secondary microstrip conductor trace. A first conductive via extends through the dielectric substrate and electrically connects the primary conductor trace to the secondary conductor trace. A second conductive via is spaced from the first conductive via and extends through the dielectric substrate to electrically connect the secondary conductor trace to the coaxial center conductor. A bottom microstrip ground plane layer is defined on the second substrate surface. A conductive base plate structure has a cavity formed therein, the substrate positioned such that the base plate structure is in contact with the bottom ground plane layer, and the secondary conductor trace is positioned over the cavity. The substrate is positioned between a cover structure and the base plate structure, the cover structure disposed in spaced relation with respect to the first surface of the substrate. A coaxial transmission line structure includes an outer shield and a coaxial center conductor structure disposed within the outer conductor and transverse to the substrate, the center conductor passed through an opening in the cover structure to contact the second via. A conductive plate structure is positioned between the plane of the cover structure and the substrate, providing shielding surrounding the center conductor between the cover and the substrate.
    • 同轴对微带垂直转变包括在其第一表面上形成有初级微带导体迹线的介质基片,在第二表面上形成次级微带导体迹线。 第一导电通孔延伸穿过电介质基板并将初级导体迹线电连接到次级导体迹线。 第二导电通孔与第一导电通孔间隔开并延伸穿过电介质基板,以将次导体迹线电连接到同轴中心导体。 底部微带接地平面层限定在第二基板表面上。 导电基板结构具有形成在其中的空腔,基板被定位成使得底板结构与底部接地平面层接触,并且次级导体迹线位于空腔上方。 基板位于盖结构和基板结构之间,盖结构相对于基板的第一表面间隔开设置。 同轴传输线结构包括外屏蔽和同轴中心导体结构,其设置在外导体内且横向于衬底,中心导体穿过盖结构中的开口以接触第二通孔。 导电板结构位于盖结构的平面和基板之间,提供围绕盖和基板之间的中心导体的屏蔽。
    • 17. 发明授权
    • Vertical grounded coplanar waveguide H-bend interconnection apparatus
    • 垂直接地共面波导H型弯曲互连装置
    • US5561405A
    • 1996-10-01
    • US463327
    • 1995-06-05
    • Richard M. HoffmeisterClifton Quan
    • Richard M. HoffmeisterClifton Quan
    • H01P1/02H01P1/04H01P3/00H01P3/02H01P3/08H01P5/02H01P5/00
    • H01P3/006H01P1/02
    • Interconnection apparatus providing a right angle H-plane bend in grounded coplanar waveguide (GCPW) transmission line media. Respective first and second GCPW lines include a dielectric substrate, on which is formed on a bottom surface a bottom conductive ground plane, and on a top surface is formed a center conductor strip sandwiched between first and second top ground plane strips. The two GCPW lines are disposed orthogonally, forming a corner junction at which corresponding bottom and top ground planes, and the center conductor strips, of the lines are electrically connected. The gaps between corresponding top ground plane strips and the center conductor strips have regions of increased gap width at the corner junction to compensate for the capacitance resulting from the junction.
    • 互连装置在接地共面波导(GCPW)传输线介质中提供直角H平面弯曲。 相应的第一和第二GCPW线包括电介质基板,在其上形成底部导电接地平面,并且在顶表面上形成夹在第一和第二顶部接地平面条之间的中心导体条。 两个GCPW线被正交地布置,形成一个角接合部,在该拐角处,相应的底部和顶部接地平面以及中心导体条线被电连接。 相应的顶部接地平面条和中心导体条之间的间隙具有在拐角处具有增加的间隙宽度的区域,以补偿由该结形成的电容。
    • 18. 发明授权
    • Microstrip diagnostic probe for thick metal flared notch and ridged
waveguide radiators
    • 用于厚金属喇叭口和脊波导散热器的微带诊断探头
    • US5502372A
    • 1996-03-26
    • US320030
    • 1994-10-07
    • Clifton Quan
    • Clifton Quan
    • G01R1/067G01R29/10H01Q13/08G01R31/02G01R19/28
    • G01R1/06772H01Q13/085G01R29/10
    • A microstrip probe that can be inserted into the mouth or radiating portion of a thick flared notch or open ridged waveguide radiator element within an array antenna aperture and coupled to the TEM feed circuit transition of that element. The probe can then be used to extract performance diagnostic data of the circuitry behind the array aperture without removing the aperture itself. The probe bypasses the radiating portion of the array element and the effects of mutual coupling associated with the array. The probe is a printed circuit board whose thickness matches the gap dimension of the flared notch feed circuit transition line at its feed launch point. A coaxial connector at one end provides a connection to a microstrip line formed on the circuit board. The ground plane of the microstrip narrows to transform the microstrip line into a broadside coupled strip transmission line, which runs to the insertion end of the probe. The strips are shorted together at the insertion end. A slot is formed at the insertion end which is one quarter wavelength in length to encourage coupling from the feed circuit into the probe.
    • 一个微带探头,可以插入阵列天线孔内的一个厚的喇叭口或开放的脊状波导散热元件的口部或辐射部分,并与该元件的TEM馈电电路转换耦合。 然后可以使用探头来提取阵列孔径后面的电路的性能诊断数据,而无需去除孔径本身。 探头绕过阵列元件的辐射部分和与阵列相关的相互耦合的影响。 探针是印刷电路板,其厚度与其进料发射点处的扩口凹陷进给电路转换线的间隙尺寸相匹配。 一端的同轴连接器提供与形成在电路板上的微带线的连接。 微带的接地平面变窄,将微带线变换成宽边耦合的条形传输线,其传播到探头的插入端。 条带在插入端短接在一起。 在插入端形成一个长度为四分之一波长的槽,以促进从进料回路耦合到探头中。
    • 20. 发明授权
    • Phase shift device using voltage-controllable dielectrics
    • 使用电压可控电介质的相移装置
    • US5355104A
    • 1994-10-11
    • US10943
    • 1993-01-29
    • Ronald I. WolfsonClifton QuanDonald R. Rohweller
    • Ronald I. WolfsonClifton QuanDonald R. Rohweller
    • H01P1/18H01P3/08H01P9/00
    • H01P1/181
    • A length of strip transmission line uses two symmetrically spaced center conductors between two groundplanes. These conductive strips produce an even-mode electric field between the two groundplanes when excited in-phase and an odd-mode electric field when excited in anti-phase relationship. For the latter case, the phase velocity of the odd-mode is significantly affected by the electric field in the gap region between the conducting strips. By varying the relative dielectric constant of a material located in the gap region, e.g., by means of a voltage-controllable dielectric such as barium-titanate compositions, the phase velocity and, hence, the phase shift of an RF signal propagating through the strip transmission medium can be controlled.
    • 一段带状传输线在两个接地面之间使用两个对称间隔的中心导体。 当激发同相时,这些导电条在两个接地平面之间产生均匀模式的电场,当以反相位激发时,产生奇模态电场。 对于后一种情况,奇数模式的相位速度显着地受到导电条之间的间隙区域中的电场的影响。 通过改变位于间隙区域中的材料的相对介电常数,例如通过诸如钛酸钡组合物的电压可控电介质,相速度以及因此传播通过条带的RF信号的相移 可以控制传输介质。