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91. 发明专利

JPS58207742A OPTICAL SIGNAL TRANSMITTER 失效
公开(公告)号：JPS58207742A
公开(公告)日：1983-12-03
申请号：JP9072082
申请日：1982-05-28
申请人： YAGI ANTENNA , HITACHI KIDEN KOGYO KK , TSUMURA TOSHIHIRO
发明人： TAKAHASHI AKIRA , KAMEI SHIGEKI , TSUMURA TOSHIHIRO
IPC分类号： G02F2/00 , G02F2/02 , H04B10/00
摘要： PURPOSE:To attain bidirectional communication with one light emitting source, by providing a modulator performing optical modulation to rays in front of a corner cube and providing a demodulator demodulating a reflecting signal applied with optical-modultion for the side of the light emitting source. CONSTITUTION:When incident rays A and reflecting rays B are made incident at a position shifted from a center 2a of the corner cube 2, the reflecting rays B only pass through a modulating element 3 and the rays B are applied with optical-modulation by a signal frequency fed to a transparent electrode 5. When the incident rays A are made incident to a lower part than the center 2a of the cube 2 as shown in broken lines, the incident rays A pass through the modulating element 3 and applied with optical-modulation by the signal frequency fed to the transparent electrode 5 in this case. Further, the optically modulated wave is reflected on the cube 2 and returned to the light emitting source in parallel with the incident rays A.

92. 发明专利

JPS57127302A Synthesizer of high frequency signal 失效
标题翻译：高频信号合成器
公开(公告)号：JPS57127302A
公开(公告)日：1982-08-07
申请号：JP1270481
申请日：1981-01-30
申请人： Yagi Antenna Co Ltd
发明人： TAKAHASHI AKIRA
IPC分类号： H01Q3/30 , H01Q3/36 , H04B1/10
CPC分类号： H01Q3/36
摘要： PURPOSE:To consecutively change the phase with no contact to eliminate the noise and to realize the minaturization of a synthesizer of high frequency signals, by providing by variable phase shifter to which the signal of one side is supplied, a fixed phase shifter to which the signal of the other side is supplied plus a synthesizer which synthesizes the outputs of both phase shifters. CONSTITUTION:A fixed line 13 is connected between an input terminal 11 and a synthesizer 12. At the some time, a variable phase shifter 15 consisting of a directional coupler and a variable reactance circuit is connected between an input terminal 14 and the synthesizer 12. In such constitution, the phase can be consecutively changed with no contact. In addition, a delaying circuit or a changeover switch which is so far required can be excluded to eliminate an incomplete contact or noise as well as to realize the miniaturization.
摘要翻译：目的：为了不间断地改变相位，消除噪声，实现高频信号合成器的小型化，通过提供一侧信号的可变移相器提供一个固定的移相器，提供另一侧的信号加上合成两个移相器的输出的合成器。构成：固定线路13连接在输入端子11和合成器12之间。有时候，由定向耦合器和可变电抗电路组成的可变移相器15连接在输入端子14和合成器12之间。在这种结构中，可以不接触地连续地改变相位。此外，可以排除迄今为止所需的延迟电路或切换开关，以消除不完全的接触或噪声以及实现小型化。

93. 发明专利

JPS55114016A HIGH FREQUENCY RESONATOR 失效
公开(公告)号：JPS55114016A
公开(公告)日：1980-09-03
申请号：JP1969479
申请日：1979-02-23
申请人： YAGI ANTENNA
发明人： SEKIUCHI KAZUNORI , MITA YOSHIHISA , TAKAHASHI AKIRA
IPC分类号： H03H5/02
摘要： PURPOSE:To vary the resonance frequency of a resonator by inflecting a flexible lead wire to let a capacitor element, provided connecting across an inductance element via the flexible lead wire, come away from and in contact with the inductance element. CONSTITUTION:To positions A and B fixed more away than an interval between electrodes of capacitor element 2 on conductor 1, both terminals of capacitor element 2 are connected via flexible lead wire 3. An interval between A and B is approximate 10mm in the UHFTV band and this part serves as an inductance element. Thus, a high frequency resonator of simple constitution can be obtained which is mechanically hard and has excellent temperature characteristics.

94. 发明专利

JPS5520028A DISTURBING WAVE ELIMINATING DEVICE 失效
公开(公告)号：JPS5520028A
公开(公告)日：1980-02-13
申请号：JP9246778
申请日：1978-07-31
申请人： YAGI ANTENNA
发明人： FUJITA RIKUO , SEKIUCHI KAZUNORI , TAKAHASHI AKIRA
IPC分类号： H04N5/21 , H01Q3/26 , H04B7/08
摘要： PURPOSE:To obtain a disturbing wave eliminating device featuring an easy distribution by using the phase shifter featuring the linear phase change characteristics at the fixed frequency band and the compensating circuit for the residual phase and thus securing the invariable direction for the null point to the variation of the reception frequency. CONSTITUTION:The double-step vertical connection is given to the constitution of directional coupler 9, coil 10 and capacity 11. Coil 10 adjusts the resonance frequency to about 1.5-fold of the using band against the maximum value of the capacity to from variable phase shifter 5 featuring the linear phase variation. Antennas 1 and 2 of the same structure are arranged on the same phase surface with fixed spaced between and in the direction of the desired wave, and then variable phase shifter 5 is connected to antenna 1 and compensating circuit 6 plus attenuator 7 are connected in series to antenna 2 repectively to be then added to in-phase compounding unit 8. And the compound output is supplied to the receiver. The maximum phase variable amount is c onverted to length L of the space to calculate line length A featuring the same characteristics between the inclination and the residual phase characteristics at the time of the minimum phase delay. Then the line length of circuit 6 is adjusted to A, and thus dsintheta=L is obtained. As a result, null point direction theta becomes constant to the frequency change, facilitating an easy distribution.

95. 发明专利

JPS51144546A DIRECTIVITY COUPLER 失效
公开(公告)号：JPS51144546A
公开(公告)日：1976-12-11
申请号：JP6836375
申请日：1975-06-06
申请人： YAGI ANTENNA
发明人： TAKAHASHI AKIRA
IPC分类号： H03H7/52 , H03H7/48
摘要： PURPOSE:In a high frequency band use directional coupler comprising two coupling lines, permitting the coupler to have a condition equivalent to that of a dense coupling coil without using a magnetic substance.

96. 发明专利

JPS5111344A 失效
公开(公告)号：JPS5111344A
公开(公告)日：1976-01-29
申请号：JP8211674
申请日：1974-07-19
申请人： YAGI ANTENNA
发明人： FUJITA MUTSUO , TAKAHASHI AKIRA , MITSUKAICHI MASASHI
IPC分类号： H01Q3/26

97. 发明专利

JPH0738329A PLANE ANTENNA USING LEAKAGE WAVE NRD GUIDE 失效
公开(公告)号：JPH0738329A
公开(公告)日：1995-02-07
申请号：JP6801893
申请日：1993-03-26
申请人： YAGI ANTENNA , YONEYAMA TSUTOMU , AZUMA TOSHIHIKO
发明人： TAKAHASHI AKIRA , MINASE ATSUSHI , YONEYAMA TSUTOMU , AZUMA TOSHIHIKO
IPC分类号： H01P3/16 , H01Q13/10 , H01Q13/20 , H01Q21/06 , H01Q21/24
摘要： PURPOSE:To provide the plane antenna using a leakage wave NRD guide simple in structure and capable of exciting a radiation element with a uniform electric field distribution. CONSTITUTION:This plane antenna is constituted of one metallic plate 21 in which a radiation element is provided for every propagation wavelength lambdag, the other metallic plate 22 arranged in parallel at an interval of half-wavelength or below of a working frequency on one metallic plate thereof, a metallic wall 23 for supporting and connecting one metallic plate and the other metallic plate in its periphery, feeding parts 26, 27, and two leakage wave dielectric strips 24, 25 separated and arranged so as to be orthogonal to each other, which are inserted/held and provided between one metallic plate and the other metallic plate, and also, radiate a leakage radio wave without residual electric power, while transmitting electric power from the feeding part.

98. 发明专利

JPH06209212A LEAKAGE WAVE NRD GUIDE 失效
公开(公告)号：JPH06209212A
公开(公告)日：1994-07-26
申请号：JP34626392
申请日：1992-12-25
申请人： YAGI ANTENNA , YONEYAMA TSUTOMU , AZUMA TOSHIHIKO
发明人： TAKAHASHI AKIRA , MINASE ATSUSHI , YONEYAMA TSUTOMU , AZUMA TOSHIHIKO
IPC分类号： H01P3/16 , H01Q13/20 , H01Q21/06
摘要： PURPOSE:To efficiently radiate even a short electric wave by adding a dielectric having a higher dielectric constant than that of a dielectric strip to a discontinuous element. CONSTITUTION:The dielectric strip 14 is sandwiched between an upper metallic board 11 and a lower metallic board 12. The notch of a narrow width is provided on the dielectric strip 14 at every transmission wave length lambdag, and the dielectric having the high dielectric constant than that of the dielectric strip 14 is added to the notch. A discontinuous element 15 for which the dielectric is added is provided on the upper side of the dielectric strip 14, and a discontinuous element 16 for which the dielectric having the higher dielectric constant than that of the dielectric strip 14 is added after deviation from the discontinuous element 15 provided on the upper side by each lambdag/2 is provided on the lower side of the dielectric strip 14. Thus, the electric wave can be efficiently radiated by respective discontinuous elements 15 and 16 having the high dielectric constant provided on the dielectric strip 14 of a leakage wave NRD guide. Therefore, a plane antenna using the leakage wave NRD guide can be made compact.

99. 发明专利

JPH0554234B2 失效
公开(公告)号：JPH0554234B2
公开(公告)日：1993-08-12
申请号：JP2588587
申请日：1987-02-06
申请人： YAGI ANTENNA
发明人： TAKAHASHI AKIRA , MORIFUJI MOTOYOSHI , KANEKO YOICHI
IPC分类号： H01R13/719 , H01R13/7193 , H01R24/38 , H02H9/00

100. 发明专利

JPH0550210B2 失效
公开(公告)号：JPH0550210B2
公开(公告)日：1993-07-28
申请号：JP1966387
申请日：1987-01-31
申请人： YAGI ANTENNA
发明人： TAKAHASHI AKIRA , MORIFUJI MOTOYOSHI , KANEKO YOICHI
IPC分类号： H02H9/04

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