Broadband electroacoustic delay lines
    1.
    发明授权
    Broadband electroacoustic delay lines 失效
    宽带电声延迟线

    公开(公告)号:US3946341A

    公开(公告)日:1976-03-23

    申请号:US53903275

    申请日:1975-01-06

    CPC分类号: H03H9/30

    摘要: In a broadband microwave acoustic delay line, two or more transducers are used for energy translation from electromagnetic into acoustic (one type) and reverse (the other type) which are mechanically independent and resonant at acoustic frequencies different from one to the others. Each transducer of one type is connected to a first end of a matching section which constitutes a series resonant circuit tuned at a frequency within the band different from the frequency corresponding to any other transducer. The second ends of the two or more matching sections are connected at the same end of a wideband impedance transformer.

    摘要翻译: 在宽带微波声波延迟线中,使用两个或更多个换能器将能量从电磁转换成声学(一种)和反向(另一种类型),它们在机械上是独立的,并且在不同于其它声学频率的声频频率下共振。 一种类型的每个换能器连接到匹配部分的第一端,该匹配部分构成在与对应于任何其它换能器的频率不同的频带内的频率调谐的串联谐振电路。 两个或多个匹配部分的第二端连接在宽带阻抗变压器的同一端。

    Waveguide to microstrip coupler
    2.
    发明授权
    Waveguide to microstrip coupler 失效
    波导到微带耦合器

    公开(公告)号:US3924204A

    公开(公告)日:1975-12-02

    申请号:US46723574

    申请日:1974-05-06

    IPC分类号: H01P5/107 H01P1/16 H01P5/08

    CPC分类号: H01P5/107

    摘要: In a waveguide to microstrip coupler comprising a metal part fastened to one of the waveguide large walls in which a channel is machined and a strip line within said channel protruding through an opening in said waveguide large wall, the distance between the nonmetalized face of the strip line substrate and the channel wall is set to a value depending on the mid band frequency of the transmitted bandwidth in order to provide a bandwidth equal to 40 percent of the mid band frequency value.

    摘要翻译: 在波导到微带耦合器中,包括固定到其中加工通道的波导大壁之一的金属部分和在所述通道内穿过所述波导大壁中的开口突出的带状线,条带的非金属化面之间的距离 线路基板和信道壁被设置为取决于所发送带宽的中频带频率的值,以便提供等于中频带频率值的40%的带宽。

    Ultra high frequency transistors manufacturing process
    3.
    发明授权
    Ultra high frequency transistors manufacturing process 失效
    超高频晶体管的制造工艺

    公开(公告)号:US3890163A

    公开(公告)日:1975-06-17

    申请号:US41128173

    申请日:1973-10-31

    IPC分类号: H01L21/265 H01L29/00 H01L7/54

    摘要: The production sequence of the UHF transistors includes at least one ion implantation step for doping the emitter, which takes place after doping of the base, through an emitter window etched from a thin oxide layer closing the base window previously etched from a thick oxide layer. This ion implantation is followed by an anneal in neutral atmosphere while the emitter window remains open, at a temperature lower than 1000*C in the case of silicon. The base is doped either by diffusion or ion implantation. Two further ion implantations are used to degenerate the base contact area and to reduce transversal base resistance.

    摘要翻译: UHF晶体管的生产顺序包括至少一个离子注入步骤,用于掺杂发射体,其在掺杂基底之后通过从薄氧化物层蚀刻的发光体窗口进行掺杂,所述发射器窗口从先前从厚氧化物层蚀刻的基底窗口封闭。 该离子注入之后是中性气氛中的退火,而在硅的情况下,在低于1000℃的温度下,发射极窗口保持断开。 碱通过扩散或离子注入进行掺杂。 使用两个另外的离子注入来简化基极接触面积并降低横向基极电阻。

    Automatic equalizing amplifiers for the transmission of digital signals
    4.
    发明授权
    Automatic equalizing amplifiers for the transmission of digital signals 失效
    用于传输数字信号的自动均衡放大器

    公开(公告)号:US3857048A

    公开(公告)日:1974-12-24

    申请号:US40647973

    申请日:1973-10-15

    IPC分类号: H04L25/03 H03K1/14 H04B3/04

    CPC分类号: H04L25/03019

    摘要: A device for equalizing the electrically equivalent lengths of line sections between successive amplifiers in a digital signal transmission system. It comprises the cascade combination of a plurality of amplifiers, fixed impedance networks and adjustable impedance networks controlled by variable resistances, and includes a feedback path delivering a current to said variable resistances, said current varying according to the average peak amplitude of the output signal of said device. The attenuation provided by the adjustable networks is higher when the equivalent length of the preceding line section is shorter. Means are provided for adjusting the variation ranges of the variable resistors.

    摘要翻译: 一种用于均衡数字信号传输系统中的连续放大器之间的线路部分的电等效长度的装置。 它包括多个放大器,固定阻抗网络和由可变电阻控制的可调阻抗网络的级联组合,并且包括将电流传递到所述可变电阻的反馈路径,所述电流根据输出信号的平均峰值幅度而变化 说装置。 当前线部分的等效长度较短时,由可调网络提供的衰减较高。 提供了用于调整可变电阻器的变化范围的装置。

    Adjustable aperture antenna employing dielectric and ferrimagnetic material
    5.
    发明授权
    Adjustable aperture antenna employing dielectric and ferrimagnetic material 失效
    可调节的APERTURE天线使用电介质和铁电材料

    公开(公告)号:US3765021A

    公开(公告)日:1973-10-09

    申请号:US3765021D

    申请日:1971-07-14

    发明人: CHIRON B DUFFAU L

    IPC分类号: H01Q13/24 H01Q25/00 H01Q13/00

    CPC分类号: H01Q25/002 H01Q13/24

    摘要: In order to obtain wide aperture and high directivity radiation patterns from the same antenna, the radiating structure is made of a non magnetic dielectric and a dielectric ferrimagnetic material. The magnetic part is associated with magnetizing coils energized from an aperture control current source. When the antenna is of the rod type, the rod is made of the non magnetic dielectric which is covered at least partly with a magnetic coating. When the antenna is of the spherical type, a magnetic material core is surrounded with a non magnetic dielectric shell.

    摘要翻译: 为了从相同的天线获得宽孔径和高方向性辐射图案,辐射结构由非磁性电介质和介电铁磁材料制成。 磁性部分与从孔径控制电流源激励的磁化线圈相关联。 当天线为杆型时,杆由至少部分被磁性涂层覆盖的非磁性电介质制成。 当天线是球形时,磁性材料芯被非磁性电介质外壳包围。

    Communication system using binary to multi-level and multi-level to binary coded pulse conversion
    6.
    发明授权
    Communication system using binary to multi-level and multi-level to binary coded pulse conversion 失效
    使用二进制多级和多级二进制编码脉冲转换的通信系统

    公开(公告)号:US3754237A

    公开(公告)日:1973-08-21

    申请号:US3754237D

    申请日:1972-03-02

    CPC分类号: H03M5/00 H04L25/4919

    摘要: A communication system in which binary coded pulses are translated into multi-level pulses before being transmitted through a communication circuit, at the receiving end of which they are reconverted into binary coded pulses. The binary pulses are grouped into words of n bits, to each of which a (n+1)th-bit of constant value is added. The (n+1) bit words are subdivided into k partial words each having q bits, with (n+1) equal to the product kq. Each one of the partial words is translated into a multi-level pulse of one or the other polarity according to the algebraic sign of the sum of the positive and negative amplitudes of the previously transmitted multi-level pulses. A method for the insertion of synchronization words is described. At the receiving end of the system, the (n+1)th-bit in each group of k partial words is used for controlling the correct restitution of the original binary coded word, by eliminating the ambiguity which otherwise could result from the fact that different multilevel pulses may correspond to identical binary coded partial words, according to their position in the sequence of these words.

    摘要翻译: 一种通信系统,其中二进制编码脉冲在通过通信电路传输之前被转换为多电平脉冲,在其接收端将它们重新转换为二进制编码脉冲。 二进制脉冲被分组成n位的字,其中每一个加上恒定值的第(n + 1)位。 第(n + 1)位字被细分为每个具有q位的k个部分字,其中(n + 1)等于乘积kq。 根据先前传输的多电平脉冲的正和负振幅的和的代数符号,每个部分字被转换为一个或另一个极性的多电平脉冲。 描述插入同步字的方法。 在系统的接收端,每组k个部分字中的第(n + 1)位用于控制原始二进制编码字的正确恢复,通过消除否则可能由以下事实导致的模糊: 根据它们在这些字的顺序中的位置,不同的多电平脉冲可以对应于相同的二进制编码的部分字。

    Microwave integrated circuit
    7.
    发明授权
    Microwave integrated circuit 失效
    微波集成电路

    公开(公告)号:US3745486A

    公开(公告)日:1973-07-10

    申请号:US3745486D

    申请日:1972-03-01

    发明人: CHIRON B PUYHAUBERT J

    CPC分类号: H03H9/125 H03H9/36

    摘要: A microwave integrated circuit operating as an acoustic delay line comprises a substrate, at least an input strip line conductive pattern and an output strip line conductive pattern deposited on said substrate, at least one electroacoustic transducer between said lines and said substrate located so that the acoustic waves propagate within the substrate along a preferred axis.

    Microstrip ring-shaped resonators and microwave generators using the same
    8.
    发明授权
    Microstrip ring-shaped resonators and microwave generators using the same 失效
    MICROSTRIP环形谐振器和使用相同的微波发生器

    公开(公告)号:US3702445A

    公开(公告)日:1972-11-07

    申请号:US3702445D

    申请日:1971-10-18

    发明人: FORTERRE GERARD E

    IPC分类号: H01P7/08 H03B9/14 H03B7/06

    CPC分类号: H01P7/088 H03B9/142

    摘要: A microwave resonator comprising an insulating substrate plate with a metallized coating entirely covering one of its faces and a metallized ring on its other face, and a microstrip transmission line on the same plate capacitively coupled with said ring. Microwave generators using such a resonator for determining their working frequency and having a Gunn diode located in the central hole of the ring are also described. The substrate plate can be made of a non-magnetic material or, if a variable frequency is desired, of a magnetic material adjustably polarized by D.C. field producing means.

    摘要翻译: 一种微波谐振器,包括具有完全覆盖其表面之一的金属化涂层和其另一面上的金属化环的绝缘基板,以及与所述环电容耦合的同一板上的微带传输线。 还描述了使用这种谐振器来确定其工作频率并且具有位于环的中心孔中的耿氏二极管的微波发生器。 衬底板可以由非磁性材料制成,或者如果需要可变频率,则由D.C.场产生装置可调节地极化的磁性材料。

    Microstrip circuits wherein non-magnetic insulating substrate and magnetic insert have same crystalline structure
    9.
    发明授权
    Microstrip circuits wherein non-magnetic insulating substrate and magnetic insert have same crystalline structure 失效
    非磁性绝缘基片和磁性插件具有相同晶体结构的微结构电路

    公开(公告)号:US3697901A

    公开(公告)日:1972-10-10

    申请号:US3697901D

    申请日:1970-12-07

    IPC分类号: H01P1/387 H01P3/08 H01P1/32

    CPC分类号: H01P1/387

    摘要: Microwave integrated circuits are designed as microstrip patterns on insulating non magnetic substrates with the same crystalline structure as magnetic materials operating in the same frequency band. At X band, solid solutions of ferrites with titanates are described and a garnet-like non magnetic material is preferred at L band. Magnetic parts are set into the substrate.

    摘要翻译: 微波集成电路设计为绝缘非磁性基板上的微带图案,具有与在相同频带上工作的磁性材料相同的晶体结构。 在X波段,描述了具有钛酸盐的铁氧体的固溶体,并且在L波段优选石榴石状非磁性材料。 将磁性部件设置在基板中。