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公开(公告)号：US5016202A
公开(公告)日：1991-05-14
申请号：US414556
申请日：1989-09-29
CPC分类号： H03B23/00 , H03B19/00 , H03B2200/0048 , H03B2200/0092 , H03B2201/0241 , H03C3/0908
摘要： A swept synthesizer signal source provides a digital synchronization signal for accurate internal synchronization of events and for external synchronization of data taking and other operations to predetermined frequencies generated by an oscillator during a sweep. The digital synchronization signal includes a predetermined number of digital pulses, regardless of the sweep time. A ramp voltage which controls the oscillator is corrected during a calibration period to sweep between predetermined limits, thereby insuring that the ramp voltage is synchronized to the digital synchronization signal. The slope of the frequency versus time sweep is also corrected to further improve accuracy. A power level correction technique insures precision power leveling regardless of the sweep range. A table of correction/frequency pairs is entered into the instrument, and an interpolation algorithm is employed to determine corrections at frequencies correponding to each synchronization pulse. The source can be used in a network analyzer system wherein the synchronization pulses are provided to a receiver to trigger data taking. Two or more sources can be interconnected to provide synchronized sweeps.
摘要翻译： 扫频合成器信号源提供数字同步信号，用于精确的事件内部同步以及数据采集和其他操作的外部同步到扫描期间由振荡器产生的预定频率。 无论扫描时间如何，数字同步信号包括预定数量的数字脉冲。 在校准周期期间校正控制振荡器的斜坡电压以在预定极限之间扫描，从而确保斜坡电压与数字同步信号同步。 频率对时间扫描的斜率也被校正以进一步提高精度。 功率电平校正技术无论扫描范围如何都能保证精确的功率均衡。 校正/频率对的表被输入到仪器中，并且使用内插算法来确定在与每个同步脉冲相对应的频率处的校正。 源可以用在网络分析仪系统中，其中同步脉冲被提供给接收器以触发数据采集。 两个或更多个源可以互连以提供同步扫描。
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公开(公告)号：US3676751A
公开(公告)日：1972-07-11
申请号：US3676751D
申请日：1971-01-04
申请人： NARDA MICROWAVE CORP
发明人： HAUSNER JERRY
CPC分类号： H03B23/00 , H03B19/00 , H03B2200/0092 , H03B2201/0241
摘要： A broad band high frequency sweep generator is disclosed wherein the operating modes and critical frequencies are selected by pushbutton actuated switches. The switches are interconnected in order to insure that each mode discretely controls operation of the generator and the critical frequencies required for any particular mode only are selected.
摘要翻译： 公开了一种宽带高频扫描发生器，其中通过按钮致动的开关选择操作模式和临界频率。 这些开关是互连的，以确保每个模式离散地控制发电机的运行，并且仅选择任何特定模式所需的临界频率。
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3.发明授权Cavity resonator tuned by means of magnetically controlled coaxial ferrite material located in an auxiliary cavity 失效通过位于辅助腔中的磁控同轴铁氧体材料调谐的腔谐振器
公开(公告)号：US3202945A
公开(公告)日：1965-08-24
申请号：US27426163
申请日：1963-04-19
申请人： NIPPON ELECTRIC CO
发明人： HIROSHI TACHIZAWA , SUSUMU KITAZUME
CPC分类号： H03B5/1817 , H01P7/06 , H03B2201/0241 , H03B2201/036
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公开(公告)号：US5617104A
公开(公告)日：1997-04-01
申请号：US616337
申请日：1996-03-15
申请人： Satyendranath Das
发明人： Satyendranath Das
CPC分类号： H01Q1/364 , H03B9/142 , H03B15/00 , H03B2201/0241 , H03B5/1882
摘要： Three embodiments of a tunable ferroelectric transmitting system are included. Each embodiment includes a tunable oscillator and a tunable antenna. Two embodiments include a negative resistance diode, the frequency of oscillation being controlled by a single crystal tunable ferroelectric resonator. The third embodiment uses a transistor. The tunable antenna is made of a single crystal tunable ferroeletric resonator. All conducting depositions are made of films of a high Tc superconducting material.
摘要翻译： 包括可调谐铁电传输系统的三个实施例。 每个实施例包括可调谐振荡器和可调谐天线。 两个实施例包括负电阻二极管，振荡频率由单晶可调铁电谐振器控制。 第三实施例使用晶体管。 可调天线由单晶可调铁电谐振器制成。 所有导电沉积由高Tc超导材料的薄膜制成。
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公开(公告)号：US5168248A
公开(公告)日：1992-12-01
申请号：US832583
申请日：1992-02-07
申请人： Yoshihiro Konishi
发明人： Yoshihiro Konishi
CPC分类号： H03B5/1882 , H03C3/00 , H03B2201/0241 , H03C3/06 , H03C3/18
摘要： For realizing a highly sensitive and favorably linear frequency modulator stably operating with a small-sized and readily manufactured arrangement, input and output strip electrodes are disposed in face on both ends of a ferri-magnetic film deposited on a magnetic substrate and applied with a DC magnetic field perpendicular thereto, a high frequency electro-magnetic wave being applied through the input electrode, so as to generate a magneto-static forward volume wave propagating through the magnetic film, the propagation phase of which is modulated in response to the intensity variation of the applied magnetic field modulated by a signal, so as to derive a frequency modulated electro-magnetic wave from the output electrode.
摘要翻译： 为了实现用小尺寸且容易制造的布置稳定工作的高灵敏度和有利的线性频率调制器，输入和输出条形电极面对沉积在磁性基底上并施加DC的铁磁性膜的两端 垂直于其的磁场，通过输入电极施加的高频电磁波，以便产生传播通过磁膜的磁静态正向体积波，其传播相位响应于 所施加的磁场由信号调制，从而从输出电极导出调频的电磁波。
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公开(公告)号：US5068627A
公开(公告)日：1991-11-26
申请号：US617130
申请日：1990-11-19
CPC分类号： H03B5/1882 , H01P1/365 , H03B2201/0241 , H03B5/1841
摘要： A resonant microwave isolator is described in which a diagonal slot is fod in the top conductor of a microstrip, a strip of ferromagnetic material is mounted over at least a portion of the slot and magnetic flux is established in the ferromagnetic material in a direction intersecting the slot.
摘要翻译： 描述了一种谐振微波隔离器，其中在微带的顶部导体中形成对角槽，在该槽的至少一部分上安装有铁磁材料条，并且在铁磁材料中沿着与 槽
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公开(公告)号：US5056144A
公开(公告)日：1991-10-08
申请号：US597970
申请日：1990-10-15
申请人： William P. Cornelius
发明人： William P. Cornelius
CPC分类号： H03B9/142 , H03B5/1894 , H03B2200/0054 , H03B2200/0088 , H03B2201/0241 , H03B2202/017 , H03B2202/06
摘要： Apparatus for allowing low noise and fast frequency switching of a ferri-resonant oscillator, such as YIG, that uses a coil to control output signal frequency by current level. The apparatus positions an active filter in parallel with the oscillator coil, which can be set to one of two impedance levels. A low impedance level provides low pass filtering of the current to the oscillator coil for low noise operation. A second high impedance level allows fast settling of transients during frequency changes. Once current levels have stabilized, the active filter can then be switched to low impedance mode without creating a significant transient. This facilitates fast frequency switching.
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公开(公告)号：US5023571A
公开(公告)日：1991-06-11
申请号：US414555
申请日：1989-09-29
CPC分类号： H03B23/00 , H03B19/00 , H03B2200/0048 , H03B2200/0092 , H03B2201/0241 , H03C3/0908
摘要： A swept synthesizer signal source provides a digital synchronization signal for accurate internal synchronization of events and for external synchronization of data taking and other operations to predetermined frequencies generated by an oscillator during a sweep. The digital synchronication signal includes a predetermined number of digital pulses, regardless of the sweep time. A ramp voltage which controls the oscillator is corrected during a calibration period to sweep between predetermined limits, thereby insuring that the ramp voltage is synchronized to the digital synchronication signal. The slope of the frequency versus time sweep is also corrected to further improve accuracy. A power level correction technique insures precision power leveling regardless of the sweep range. A table of correction/frequency pairs is entered into the instrument, and an interpolation algorithm is employed to determine corrections at frequencies corresponding to each synchronization pulse. The source can be used in a network analyzer system wherein the synchronization pulses are provided to a receiver to trigger data taking. Two or more sources can be interconnected to provide synchronized sweeps.
摘要翻译： 扫频合成器信号源提供数字同步信号，用于精确的事件内部同步以及数据采集和其他操作的外部同步到扫描期间由振荡器产生的预定频率。 无论扫描时间如何，数字同步信号包括预定数量的数字脉冲。 在校准周期期间校正控制振荡器的斜坡电压以在预定极限之间扫描，从而确保斜坡电压与数字同步信号同步。 频率对时间扫描的斜率也被校正以进一步提高精度。 功率电平校正技术无论扫描范围如何都能保证精确的功率均衡。 校正/频率对的表被输入到仪器中，并且使用内插算法来确定在与每个同步脉冲对应的频率处的校正。 源可以用在网络分析仪系统中，其中同步脉冲被提供给接收器以触发数据采集。 两个或更多个源可以互连以提供同步扫描。
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公开(公告)号：US4318061A
公开(公告)日：1982-03-02
申请号：US115080
申请日：1980-01-24
CPC分类号： H03H2/001 , H03B5/1882 , H03B2201/0241 , H03B2202/017 , H03B2202/05
摘要： Microwave oscillator using magnetostatic surface or bulk waves which can be transmitted in a thin layer of magnetic material having two cavity resonators with coupled gratings of different equivalent lengths in such a way that the first is multimode and the second monomode in the reflection pass band of the gratings, the cavities being arranged in such a way that the second filters the modes transmitted in the first. Microwave signals are applied to one of the two cavities and the resonated waves are collected in the second cavity.
摘要翻译： 使用静磁表面或体波的微波振荡器，其可以在具有两个具有不同等效长度的耦合光栅的两个谐振腔的磁性材料薄层中传输，使得第一个是多模，而第二个单模在第 光栅，空腔以这样的方式布置，使得第二滤光器在第一滤光片中传输的模式。 微波信号被施加到两个空腔中的一个，并且谐振波被收集在第二腔中。
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10.发明授权Microwave frequency synthesizer having selectable oscillator sources and output power control 失效具有选择性振荡源的微波频率合成器和输出功率控制
公开(公告)号：US5237291A
公开(公告)日：1993-08-17
申请号：US899480
申请日：1992-06-16
申请人： George Hjipieris , Guy Purchon , Alan M. Elston , Garry Thorp
发明人： George Hjipieris , Guy Purchon , Alan M. Elston , Garry Thorp
CPC分类号： H03L7/23 , H03B23/00 , H03B2201/0241 , H03C3/0908
摘要： A microwave synthesiser comprising: a plurality of oscillator sources (1, 13, 3, 15, 5, 17, 7), each for generating signals over a range of frequencies, said ranges of frequencies together extending over a total range of frequencies generated; phase locked loops (19, 31, 83, 37, 38, 41, 81) for phase-locking any selected one of said oscillator sources (1, 13, 3, 15, 5, 17, 7) so that it generates signals of a frequency at which it is set; a single low harmonic modulator (21) for modulating the signals generated by the selected one of said oscillator sources (1, 13, 3, 15, 5, 17, 7), the modulated signals passing to an output (27) of said synthesiser; and at said output (27) elements (25, 29) for detecting the power of the signals at said output (27), the modulation by said single low harmonic modulator (21) being controlled in dependence on the detected power thereby to control the power of the signals at said output (27).
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