Flutter-preventive antenna
    11.
    发明专利
    Flutter-preventive antenna 失效
    防水天线

    公开(公告)号:JPS5783902A

    公开(公告)日:1982-05-26

    申请号:JP15961180

    申请日:1980-11-14

    Applicant: Toshiba Corp

    CPC classification number: H01Q21/22

    Abstract: PURPOSE:To improve flutter suppression effect more by stacking >=4 wide-band directional antennas at prescribed intervals and by providing them with prescribed energizing current distribution. CONSTITUTION:When five directional antennas A1-A5 are stacked, 0.36lambda0

    Abstract translation: 目的:通过以规定的间隔叠加> = 4个宽带定向天线,并通过向其提供规定的通电电流分布来提高颤振抑制效果。 构成:当五个定向天线A1-A5被堆叠时,0.36λ1<= S1 <=0.67λ0和0.36λλ<= S2 <=0.67λ0; 并且α1= 0.57-1.0和α2= 0.7-1.0,其中天线的间隔是S1和S2,并且用于调节到各个天线的通电电流的衰减器42-45的衰减因子是α1和α2。 当四个天线被堆叠时,0.36λ1= S3 <=0.67λ,0.36λ0= S4 <=0.67λ,而α1= 0.57-1.0。 因此,获得了具有小的向上旁瓣的垂直方向性。

    Retrodirective antenna
    12.
    发明专利
    Retrodirective antenna 失效
    回归天线

    公开(公告)号:JPS5761302A

    公开(公告)日:1982-04-13

    申请号:JP13659180

    申请日:1980-09-30

    Applicant: Toshiba Corp

    Inventor: HIDAKA KAZUTAKA

    CPC classification number: H01Q3/2647

    Abstract: PURPOSE:To obtain an antenna adjusting its directivity to the arrival direction of a radio wave automatically by providing distributors to two element antennas and by controlling the phase shifting of one distributor by the composite output of the outputs of both the distributors. CONSTITUTION:To output terminals of element antennas A1 and A2 arranged at an interval S, distributors D1 and D2 are connected, and one-side output terminals of the distributors D1 and D2 are connected to a synthesizer C1 through limiters L1 and L2. Then when the azimuth angle is theta, wavelength is lambda, and k=2pi/lambda, the output voltage V1 of the synthesizer C1 is as shown by equation (I) (where A is a value proportional to the gain of the element antenna, electricfield intensity, etc.). The other output of the distributor D1, on the other hand, is passed through a phase shifter phi1 and mixed with the other output of the distributor D2 by a synthesizer C2. When the extent of phase shifting of the phase shifter phi is phi, the output voltage V2(theta) of the synthesizer C2 is as shown by equation (II), (where B is a value proportional to the gain of the element antenna, electric field intensity, etc.), so the extent phi of phase shifting is controlled, as shown by equation (III), corresponding to the voltage V1(theta), thereby adjusting the directivity to the arrival direction of a radio wave automatically.

    Abstract translation: 目的:通过向两个元件天线提供分配器并通过两个分配器的输出的复合输出控制一个分配器的相移来获得天线调整其到无线电波到达方向的方向性。 构成:为了输出以间隔S排列的元件天线A1和A2的端子,分配器D1和D2连接,分配器D1和D2的单侧输出端子通过限制器L1和L2连接到合成器C1。 然后当方位角为θ时,波长为λ,k = 2pi /λ,合成器C1的输出电压V1如等式(I)所示(其中A是与元件天线的增益成比例的值, 电场强度等)。 另一方面,分配器D1的另一个输出通过移相器phi1并通过合成器C2与分配器D2的另一个输出混合。 当移相器phi的相移程度为phi时,合成器C2的输出电压V2(theta)如等式(II)所示,其中B是与元件天线的增益成比例的值,电 场强等),因此如等式(III)所示,相应于电压V1(theta)来控制相移的程度phi,从而自动调整到无线电波的到达方向的方向性。

    METHOD FOR MEASURING RADIATION EFFICIENCY OF ANTENNA

    公开(公告)号:JPS63165773A

    公开(公告)日:1988-07-09

    申请号:JP30904286

    申请日:1986-12-27

    Applicant: TOSHIBA CORP

    Inventor: HIDAKA KAZUTAKA

    Abstract: PURPOSE:To shorten a measuring time, by a method wherein the power radiated from a cavity aperture is calculated from the integral value of a remote field and the radiation efficiency of an object to be measured is calculated from the ratio of the calculated power value and the radiation power value of a reference antenna of which the radiation efficiency is known. CONSTITUTION:A cavity 1 formed of Al has an open aperture 4 and a reference signal antenna 5 is provided in the vicinity of the cavity 1. The electromagnetic wave radiated from the object 2 to be measured held by the person 3 in the cavity 1 is received by the probe antenna 6 of the scanner 7 provided to the front surface of the aperture 4. The position of this antenna 6 is detected by a position detector 17 on the basis of the signal generated corresponding to the number of rotations of motors 10, 12 and converted to digital data by a position A/D interface 18 to be inputted to CPU 21 as position data. The signal received by the antenna 6 is inputted to a receiver 16 through a mixer 13 and a rotary joint 14 while the minute signal received by the antenna 5 is inputted to the receiver 16 as a reference signal through a mixer 15. The outputs of the receiver 16 are respectively inputted to CPU 21 through an amplitude A/D interface 19 and a phase A/D interface 20 to calculate the radiation efficiency of the object to be measured.

    Antenna device
    15.
    发明专利
    Antenna device 失效
    天线设备

    公开(公告)号:JPS5944103A

    公开(公告)日:1984-03-12

    申请号:JP15470982

    申请日:1982-09-07

    Applicant: Toshiba Corp

    Inventor: HIDAKA KAZUTAKA

    CPC classification number: H01Q3/247

    Abstract: PURPOSE:To control the directivity with one loop antenna, by dividing a loop conductor into several parts at a fixed interval and connecting a switch, to which a feeder, resistance, and short-circuit conductor are connected under a switching possible condition, to each terminal. CONSTITUTION:A loop conductor 1 is divided into four loop conductor pieces 2, 3, 4, and 5 and switches S1, S2, S3, and S4 are installed to each terminal, respectively. A feeder, resistance R, and short-circuit conductor are connected to the contacts a1 and a1', b1 and b1', and c1 and c1' of the switch S1, respectively. The other switches S2, S3, and S4 are also constituted in the same way, but, when the terminal 11 is connected to the feeder, the switch S3 of the terminal 13 facing the terminal 11 is connected to the resistance and the switches of the other terminals 12 and 14 operate so that the terminals 12 and 14 are short-circuited. This relative relationship is maintained even when other terminals are connected with the feeder, and a condition, which is equal to the condition where an antenna constituted as a unilateral directive antenna by loading the resistance R onto a location facing the feeding terminal is rotated 90 deg. by 90 deg., is realized.

    Abstract translation: 目的:为了通过一个环形天线来控制方向性,通过将环形导体以固定的间隔分割成几个部分,并在可切换的状态下将馈线,电阻和短路导体连接到开关, 终奌站。 构成:环形导体1被分成四个环形导体片2,3,4和5,并且开关S1,S2,S3和S4分别安装到每个端子。 馈线,电阻R和短路导体分别连接到开关S1的触点a1和a1',b1和b1'以及c1和c1'。 其他开关S2,S3和S4也以相同的方式构成,但是当端子11连接到馈线时,端子13的面向端子11的开关S3连接到电阻,并且开关 其他端子12和14工作,使得端子12和14短路。 即使其他端子与馈线连接,也保持这种相对关系,并且等于通过将电阻R加载到面向馈电端子的位置而构成为单边指令天线的天线的状态旋转90度 。 达到90度。

    SINGLE FEEDER TYPE CIRCULARLY POLARIZED ANTENNA

    公开(公告)号:JPS63257310A

    公开(公告)日:1988-10-25

    申请号:JP9099787

    申请日:1987-04-15

    Applicant: TOSHIBA CORP

    Inventor: HIDAKA KAZUTAKA

    Abstract: PURPOSE:To simplify the antenna design and the antenna structure by arranging orthogonally equal folded conductors and selecting the lumped constant impedance and the capacitance depending on definite equations. CONSTITUTION:A circularly polarized wave is generated by having only to make two folded conductors orthogonal and the single feeding structure is attained by connecting the primary conductors of the two folded conductors. The lumped constant inductance L and the lumped constant capacitor C decided by equations are used as a loading impedance element for the secondary conductors of the two folded conductors. Thus, the phase difference of the exciting current of the antenna comprising the two loading folded conductors is selected to be 90 deg. and the amplitude is made equal to each other. In equations, nu is the current distribution rate, Xm is the reactance of the L and C to be loaded, Z is the balanced system impedance and R0 is the internal resistance of a high frequency power supply.

    LOOP ANTENNA
    17.
    发明专利

    公开(公告)号:JPS62200802A

    公开(公告)日:1987-09-04

    申请号:JP4293886

    申请日:1986-02-28

    Applicant: TOSHIBA CORP

    Inventor: HIDAKA KAZUTAKA

    Abstract: PURPOSE:To attain the reception over a wide frequency range with simple constitution by branching a short-circuit conductor from between a feeding point of a loop conductor and a cut part and connecting a switch element thereto. CONSTITUTION:A part of a loop conductor 1 having feeding points F1, F2 is bent inward and a balun 6 and an amplifier 7 are arranged at the inside of a bent part 1' of the loop conductor 1. When switch elements 5a, 5b are turned off, an antenna is formed by a current flowing to the outside loop of the loop conductor 1 and the antenna is operated at a low frequency band. When the switches 5a, 5b are turned on, since the loop conductor 1 is short-circuit by short-circuit conductors 3a, 3b and 4a, 4b, the antenna is formed by the inner loop of the loop conductor 1 mainly and the antenna acts at a high frequency band.

    CIRCULARLY POLARIZED WAVE PRIMARY RADIATOR

    公开(公告)号:JPS61161003A

    公开(公告)日:1986-07-21

    申请号:JP80985

    申请日:1985-01-09

    Applicant: TOSHIBA CORP

    Abstract: PURPOSE:To realize both miniaturization and broad band by providing a conductor projection to convert a linearly polarized wave into a circularly polarized wave to an inner wall of a horn antenna. CONSTITUTION:Conductor projections 30, 31 made of copper, silver or aluminum are provided along the inner wall of the horn antenna 1. The conductor projections 30, 31 are provided in opposition to one electric field of orthogonal electric fields E1, E2 of an electric field E incident on a feeding end 50 of the antenna 1, e.g., the E1. The thickness and length of the conductor projections 30, 31 are selected so as to obtain a desired circularly polarized wave. Since it is not required to provide a circularly polarized wave generator in this way, the axial length is shortened and the shape is miniaturized. Since the horn antenna is used as a waveguide for a circularly polarized wave device, the diameter is large and broad band is realized easily without large-sized configuration as conventional radiators.

    Circularly polarized wave antenna
    19.
    发明专利
    Circularly polarized wave antenna 失效
    圆极化波浪天线

    公开(公告)号:JPS5912601A

    公开(公告)日:1984-01-23

    申请号:JP12100682

    申请日:1982-07-12

    Applicant: Toshiba Corp

    Inventor: HIDAKA KAZUTAKA

    CPC classification number: H01Q21/24

    Abstract: PURPOSE:To radiate a circularly polarized wave in any direction of 360 deg. without requiring any special feeding circuit by composing an antenna of a looped part and a dipole part. CONSTITUTION:The antenna conductor 1 is composed of the looped part 2 and dipole part 3 and the maximum diameter of the looped part 2 is

    Abstract translation: 目的:在360度的任何方向辐射圆偏振波。 而不需要通过组成环形部分的天线和偶极子部分的任何特殊馈电电路。 构成:天线导体1由环状部分2和偶极子部分3构成,并且环状部分2的最大直径与波长一样大于等于0.1。 另一方面,偶极子部分3a和3b从环形部分2的两端以直角和相反的方向延伸。 导体板4a和4b在彼此面对的情况下固定在偶极子部分3a和3b的顶部,并且谐振电路由两个导体之间的电容和天线导体1的电感形成。此外,从环形部分辐射的电场 3和偶极子3的振幅相等。 因此,圆偏振波在360度的任何方向上被辐射。 仅从进料点5a和5b进料,而不需要任何特殊的进料回路。

    Variable directivity antenna
    20.
    发明专利
    Variable directivity antenna 失效
    可变的方向性天线

    公开(公告)号:JPS5761306A

    公开(公告)日:1982-04-13

    申请号:JP13659280

    申请日:1980-09-30

    Applicant: Toshiba Corp

    Inventor: HIDAKA KAZUTAKA

    CPC classification number: H01Q3/2623

    Abstract: PURPOSE:To prevent a variable directivity antenna, which mixes the outputs of two element antennas passed through phase shifters, from changing in null direction by dividing each antenna output into two frequency bands and by passing only the low-band side output through an amplitude adjusting device. CONSTITUTION:Element antennas 1 and 2 are composed of a phase difference feeding antenna with a couple of dipole elements A1 and A2 arranged in parallel, balancers B1 and B2, feeders F1 and F2, and a mixer C. The outputs of the element antennas 1 and 2 are each divided into two frequency bands, high frequency range and low frequency range, and only low-band side output is supplied to signal proccessing circuits 5 and 6, mixing signals of both the bands together, through an amplitude adjusting device. Then, the output of the circuit 6 is passed through a phase shifter 3 and mixed with the output of the circuit 5 by a mixer 4. In this case, a fixed attenuator R for the circuit 5 and a variable attenuator VR for the circuit 6 are used as amplitude adjusting devices and deep null directivity is obtained in the same direction over a wide frequency band.

    Abstract translation: 目的:为了防止将通过移相器通过的两个元件天线的输出混合的可变方向性天线通过将每个天线输出分成两个频带并通过仅通过振幅调整的低频带侧输出来改变零方向 设备。 构成:元件天线1和2由具有并联布置的偶极子A1和A2,平衡器B1和B2,馈线F1和F2以及混频器C的相位差馈电天线组成。元件天线1的输出 和2分别被分成两个频带,高频范围和低频范围,并且只有低频带侧输出被提供给信号处理电路5和6,通过振幅调节装置将两个频带的信号混合在一起。 然后,电路6的输出通过移相器3,并通过混频器4与电路5的输出混合。在这种情况下,电路5的固定衰减器R和电路6的可变衰减器VR 用作幅度调整装置,并且在宽频带上以相同的方向获得深零方向性。

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