-
公开(公告)号：US4906945A
公开(公告)日：1990-03-06
申请号：US340748
申请日：1989-04-20
申请人： Koji Mizuno , Haruyoshi Endo , Mitsuo Makimoto
发明人： Koji Mizuno , Haruyoshi Endo , Mitsuo Makimoto
摘要： There is disclosed herein a millimeter-wave/submillimeter-wave oscillator comprising a mirror and a diffraction grating so as to form a Fabry-Perot type resonator. The mirror, being a concave mirror or a plane mirror, and the diffraction grating are disposed in facing and spaced relation to each other. The diffraction grating has a plurality of channels extending in a direction normal to a surface of the mirror so that the oscillator has a comb-like configuration. A plurality of oscillation elements are mounted on portions within the channels of the diffraction grating.
摘要翻译： 这里公开了一种包括反射镜和衍射光栅的毫米波/亚毫米波振荡器，以形成法布里 - 珀罗型谐振器。 作为凹面镜或平面镜的反射镜和衍射光栅以彼此面对和间隔的关系设置。 衍射光栅具有沿垂直于反射镜表面的方向延伸的多个通道，使得振荡器具有梳状结构。 多个振荡元件安装在衍射光栅通道内的部分上。
-
公开(公告)号：US4449108A
公开(公告)日：1984-05-15
申请号：US348768
申请日：1982-02-16
CPC分类号： H01P1/202
摘要： A band-stop filter for VHF-UHF band comprises at least three series resonance circuits and at least two transmission lines each connected between the series resonance circuits. One of the transmission lines, which is connected to the input terminal of the band-stop filter, has an electrical length which is shorter or longer than the quarter wavelength of the center frequency of the stop band by more than 20 but less than 50 percent. When a band-stop filter comprises four transmission lines, one of the transmission lines, which is connected to the output terminal of the band-stop filter, has the same length as the transmission line connected to the input terminal. With this arrangement, the band-stop filter exhibits a sharp attenuation characteristic in a frequency range below or above the center frequency. Other transmission lines, which are not directly connected to either the input terminal or the output terminal, may have a length which is shorter or longer than the quarter wavelength by 5 to 20 percent so as to provide a sharper attenuation characteristic.
摘要翻译： 用于VHF-UHF频带的带阻滤波器包括至少三个串联谐振电路和至少两个连接在串联谐振电路之间的传输线。 连接到带阻滤波器的输入端子的传输线之一具有比阻带的中心频率的四分之一波长短或长的电长度大于20但小于50％的电长度 。 当带阻滤波器包括四条传输线时，连接到带阻滤波器的输出端的传输线之一具有与连接到输入端的传输线相同的长度。 通过这种布置，带阻滤波器在低于或高于中心频率的频率范围内表现出明显的衰减特性。 不直接连接到输入端子或输出端子的其它传输线路可以具有比四分之一波长短或长于5％至20％的长度，以便提供更清晰的衰减特性。
-
3.发明授权Push-push oscillator using a transmission line resonator and differential output 失效使用传输线谐振器和差分输出的推压振荡器
公开(公告)号：US5138284A
公开(公告)日：1992-08-11
申请号：US722468
申请日：1991-06-27
CPC分类号： H03B5/1847 , H03B19/14 , H03B2200/0008 , H03B2200/0016 , H03B2200/007 , H03B2200/0088 , H03B2202/07 , H03B2202/086
摘要： A push-push oscillator comprises: a resonator having a transmission line and a capacitance connected to the transmission line in parallel; an oscillator for producing two outputs having an antiphase relation therebetween in response to the resonator; and a differential signal producing circuit for producing a differential signal in accordance with difference between these two outputs. These outputs can be obtained from the resonator. The transmission lines comprise strip line or microstrip line which is curved to form an open loop. The transmission line may be made of a dielectric material and is curved to form an open loop whose both ends are connected to a capacitance. The resonator may further comprise two second transmission lines, each provided to an end of the transmission line, these two second transmission lines facing each other with a given distance therebetween, the distance and length of the second transmission lines being determined such that necessary capacitance is provided. Impedance of each portion of the resonator is determined to miniaturize the resonator. The differential signal producing circuit comprises a balanced to unbalanced converting circuit.
摘要翻译： 按压式振荡器包括：具有传输线和并联连接到传输线的电容的谐振器; 用于响应谐振器产生具有反相关系的两个输出的振荡器; 以及用于根据这两个输出之间的差产生差分信号的差分信号产生电路。 这些输出可以从谐振器获得。 传输线包括弯曲形成开环的带状线或微带线。 传输线可以由介电材料制成，并且被弯曲以形成其两端连接到电容的开环。 谐振器可以进一步包括两条第二传输线，每条第二传输线分别设置在传输线的一端，这两条第二传输线彼此面对给定的距离，第二条传输线的距离和长度被确定为使得必要的电容是 提供。 确定谐振器的每个部分的阻抗以使谐振器小型化。 差分信号产生电路包括平衡到不平衡转换电路。
-
公开(公告)号：US5055809A
公开(公告)日：1991-10-08
申请号：US529700
申请日：1990-05-31
CPC分类号： H01P1/20336 , H01P1/20381 , H01P7/082 , H01P7/084
摘要： A resonator having a strip line, the strip line comprising: a first portion forming an open loop; and two second portions, each provided to each end of the first portion, the second portions facing each other with a given distance therebetween, the distance and length of the second portion being determined such that necessary capacitance is provided. The capacitor is provided instead of a discrete capacitor for saving space and for reducing dielectric loss therein. A second resonator further comprises second and third capacitor having a semicircle strip-line patterns for providing capacitances between ends of the first portion and grounded planes which decrease the resonance frequency so that size of the second resonator are reduced. A third resonator also comprises the first capacitor, but arranged outside of the first portion. Capacitance of the first capacitor can be increased by teeth provided to the second portions. A filter comprises plural third resonators so arranged that coupling between the resonators is obtained by one selected from magnetic-field coupling through the first portions, electromagnetic-field coupling through first and second portions, and electric-field coupling through second portions.
摘要翻译： 一种具有带状线的谐振器，所述带状线包括：形成开环的第一部分; 以及两个第二部分，每个设置在第一部分的每个端部，第二部分彼此面对给定的距离，第二部分的距离和长度被确定为提供必要的电容。 提供电容器代替分立电容器，以节省空间并减少其中的介质损耗。 第二谐振器还包括具有用于在第一部分的端部和接地平面之间提供电容的半圆形带状线图案的第二和第三电容器，这降低了谐振频率，使得第二谐振器的尺寸减小。 第三谐振器还包括第一电容器，但是布置在第一部分的外部。 通过提供给第二部分的齿可以增加第一电容器的电容。 滤波器包括多个第三谐振器，其被布置成通过选自通过第一部分的磁场耦合，通过第一和第二部分的电磁场耦合，以及通过第二部分的电场耦合来获得谐振器之间的耦合。
-
公开(公告)号：US4876744A
公开(公告)日：1989-10-24
申请号：US144156
申请日：1988-01-15
申请人： Kouei Misaizu , Mitsuo Makimoto , Haruyoshi Endo
发明人： Kouei Misaizu , Mitsuo Makimoto , Haruyoshi Endo
CPC分类号： H03D9/0633 , H03D2200/0003 , H03D2200/0013 , H03D2200/0023 , H03D7/1408
摘要： A mixer for outputting an intermediate frequency signal as the result of mixing of a radio frequency signal and a local oscillator signal which are inputted into the mixer. The mixer comprises a balanced-to-unbalanced conversion circuit and a bridge-coupled diode circuit and the balanced-to-unbalanced conversion circuit is constructed of first and second rat race circuits, one being for the radio frequencey signal and comprising a first ring-shaped line and the other being for the local oscillator signal and comprising a second ring-shaped line. The mixer is arranged to include a substrate having first and second pattern-forming surfaces and the first ring-shaped line of the first rat race circuit is formed as a pattern on the first pattern-forming surface of the substrate and the second ring-shaped line of the second rat race circuit is formed as a pattern on the second pattern-forming surface. The bridge-coupled diode circuit is positioned on the first pattern-forming surface thereof and inside the patterned first ring-shaped line.
摘要翻译： 一种用于输出中频信号的混频器，作为输入混频器的射频信号和本地振荡器信号的混合结果。 混频器包括平衡不平衡转换电路和桥耦合二极管电路，并且平衡不平衡转换电路由第一和第二大鼠游戏电路构成，一个用于无线电频率信号，并且包括第一环 - 并且另一个用于本地振荡器信号并且包括第二环形线。 混合器被布置成包括具有第一和第二图案形成表面的基板，并且第一大鼠赛道回路的第一环形线形成为基板的第一图案形成表面上的图案，并且第二环形 第二大鼠赛道回路的线形成为第二图案形成表面上的图案。 桥耦合二极管电路位于其第一图案形成表面上并且位于图案化的第一环形线内部。
-
6.发明授权Coaxial filter having a plurality of resonators each having a bottomed cylinder 失效同轴滤波器具有多个谐振器，每个谐振器都具有有底圆筒
公开(公告)号：US4437076A
公开(公告)日：1984-03-13
申请号：US348766
申请日：1982-02-16
CPC分类号： H01P1/2053
摘要： In a coaxial filter arrangement having a plurality of coaxial resonators each having a bottomed metallic cylinder interposed between a dielectric plate and one end of a center conductor of each resonator, the peripheral wall portion of the metallic cylinder is received in the bore of an outer conductor having an open end and a closed end connected to the other end of the center conductor. In one embodiment, the bottom of the metallic cylinder has a convex portion at its center so that the bottom center projects outwardly. In another embodiment, an annular metallic member is interposed between the dielectric plate and the outer surface of the flat bottom of the metallic cylinder. Since the distance between bottoms of metallic cylinders of adjacent resonators is made large with this arrangement, influence due to leakage flux of electromagnetic field is small, while stray capacitance is negligibly small, thereby providing a filter having high performance and low loss.
摘要翻译： 在具有多个同轴谐振器的同轴滤波器装置中，每个同轴谐振器具有插入介电板和每个谐振器的中心导体的一端之间的有底金属圆柱体，金属圆筒的周壁部分容纳在外导体的孔中 具有连接到中心导体的另一端的开口端和封闭端。 在一个实施例中，金属圆筒的底部在其中心处具有凸起部分，使得底部中心向外突出。 在另一个实施例中，环形金属构件介于电介质板和金属圆筒的平底部的外表面之间。 由于这种布置使相邻谐振器的金属圆筒的底部之间的距离变大，所以由于电磁场的漏磁通引起的影响小，而杂散电容变小，从而提供具有高性能和低损耗的滤波器。
-
7.发明授权
公开(公告)号：US4631506A
公开(公告)日：1986-12-23
申请号：US514262
申请日：1983-07-15
IPC分类号： H01P7/04
CPC分类号： H01P7/04
摘要： A coaxial dielectric resonator for VHF and/or UHF band comprising a generally cylindrical dielectric having inner surface and outer surface. The inner and outer surfaces of the dielectric are respectively covered by outer and inner conductors and these conductors are connected at one end of the dielectric. An adjusting screw for adjusting resonance frequency is provided at the other end of the dielectric which is covered by a lid while holding a gap between the adjusting screw and the lid. A microwave filter using a plurality of the coaxial dielectric resonator is further described.
摘要翻译： 一种用于VHF和/或UHF带的同轴介质谐振器，包括具有内表面和外表面的大致圆柱形电介质。 电介质的内表面和外表面分别由外导体和内导体覆盖，并且这些导体在电介质的一端连接。 在保持调节螺钉和盖子之间的间隙的情况下，在由盖子覆盖的电介质的另一端设置有用于调节共振频率的调节螺钉。 进一步描述使用多个同轴介质谐振器的微波滤波器。
-
公开(公告)号：US06407718B2
公开(公告)日：2002-06-18
申请号：US09794339
申请日：2001-02-28
申请人： Naoki Adachi , Takashi Fukagawa , Suguru Fujita , Kenichi Maeda , Kazuaki Takahashi , Makoto Hasegawa , Morikazu Sagawa , Mitsuo Makimoto
发明人： Naoki Adachi , Takashi Fukagawa , Suguru Fujita , Kenichi Maeda , Kazuaki Takahashi , Makoto Hasegawa , Morikazu Sagawa , Mitsuo Makimoto
IPC分类号： H01Q138
CPC分类号： H01Q9/0485
摘要： A hemispherical dielectric resonator is arranged on a conductive substrate with a flat surface of the resonator in contact with the conductive substrate and fixed by a pair of fixing blocks. The dielectric resonator is fed with a signal feeder at a position at one side of the resonator such that intensity of the electric field is higher at that position. The fixing blocks contact a portion of the dielectric resonator where the intensity of the electric field is of a local minimum.
摘要翻译： 半导体介质谐振器布置在导电衬底上，谐振器的平坦表面与导电衬底接触并由一对固定块固定。 介质谐振器在谐振器一侧的位置处馈送有信号馈送器，使得该位置的电场强度较高。 固定块与介质谐振器的一部分接触，其中电场的强度为局部最小值。
-
9.发明授权Ring resonator oscillator usable in frequency synthesizers and communication apparatus 失效环形振荡器可用于频率合成器和通信设备
公开(公告)号：US5587690A
公开(公告)日：1996-12-24
申请号：US509663
申请日：1995-07-31
IPC分类号： H01P7/08 , H03B1/00 , H03B5/18 , H03B7/12 , H03B7/14 , H03D7/16 , H03L7/099 , H03L7/10 , H30L7/099
CPC分类号： H01P7/088 , H03B5/1852 , H03B7/12 , H03L7/099 , H03B2200/0016 , H03B2200/0034 , H03B2200/0048 , H03B2201/0208 , H03B2201/0225 , H03B7/14 , H03D7/161 , H03L7/10
摘要： A first oscillator includes: a ring resonator; an oscillation circuit having a negative resistance active circuit coupled to a first point on the ring resonator for oscillating at an oscillation frequency and resonating the resonator; an output terminal, coupled to a second point on the ring resonator where a voltage is substantially zero with respect to the predetermined frequency when the ring resonator resonates, for outputting a resonant frequency signal, wherein even order harmonic components are outputted with the fundamental component suppressed. A second oscillator includes a ring resonator having points A to D equidistantly dividing the ring resonator, first and second oscillation circuits coupled to the points A and B respectively, first and second grounding capacitors having capacitance equivalent to those of the first and second oscillation circuits. Thus, two independent oscillators which do not affect each other are provided with a single resonator. In the first and second oscillators, grounding capacitors, a resonant capacitor may be provided to miniaturize the oscillator. Variable capacitances may be provided to prevent the point from moving with a change in the controlled oscillation frequency. Frequency synthesizers and communication apparatus including the first or second oscillator are also disclosed.
摘要翻译： 第一振荡器包括：环形谐振器; 振荡电路，其具有耦合到所述环形谐振器上的第一点的负电阻有源电路，以振荡频率振荡并谐振谐振器; 输出端子，耦合到环形谐振器上的第二点，其中当环形谐振器谐振时相对于预定频率的电压基本上为零，用于输出谐振频率信号，其中偶数次谐波分量被抑制成基本分量 。 第二振荡器包括环形谐振器，其具有等距分割环形谐振器的点A至D，分别耦合到点A和B的第一和第二振荡电路，第一和第二接地电容器具有与第一和第二振荡电路相同的电容。 因此，没有彼此影响的两个独立振荡器设置有单个谐振器。 在第一和第二振荡器中，可以提供接地电容器，谐振电容器以使振荡器小型化。 可以提供可变电容以防止点随着受控振荡频率的变化而移动。 还公开了包括第一或第二振荡器的频率合成器和通信装置。
-
公开(公告)号：US5497131A
公开(公告)日：1996-03-05
申请号：US348169
申请日：1994-11-28
CPC分类号： H01P1/20381 , H01P7/082 , H01P7/084
摘要： A strip dual mode loop resonator includes loop-shaped strip line having a pair of straight strip lines arranged in parallel, an electric length of the loop-shaped strip line being equivalent to a wavelength of a microwave circulated in the loop-shaped strip line in two different directions according to a characteristic impedance of the loop-shaped strip line, and the straight strip lines being coupled to each other in electromagnetic coupling to change the characteristic impedance of the loop-shaped strip line. The microwave is transferred from an input strip line to the loop-shaped strip line through electromagnetic field induced by the microwave. Thereafter, the microwave is reflected in the straight strip lines of the loop-shaped strip line to produce reflected microwaves circulated in opposite directions. Thereafter, the reflected waves are resonated and filtered in dual mode in the loop-shaped strip line. Thereafter, the microwave formed of the reflected waves is transferred from the loop-shaped strip line to an output strip line through electromagnetic field induced by the microwave.
摘要翻译： 带状双模环路谐振器包括具有平行布置的一对直带线的环形带状线，该环形带状线的电长度等于在环形带状线中循环的微波的波长 根据环状带状线的特征阻抗的两个不同方向，并且直线条线在电磁耦合中彼此耦合以改变环形带状线的特征阻抗。 微波通过由微波引起的电磁场从输入带状线路传送到环形带状线。 此后，微波反射在环状带状线的直线条中，以产生沿相反方向循环的反射微波。 此后，反射波在环形带状线中以双重模式谐振和滤波。 此后，由反射波形成的微波通过由微波引起的电磁场从环形带状线路传送到输出带状线。
-
-
-
-
-
-
-
-
-
搜索结果
69 条记录 (耗时 0.022 秒)