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1. 发明授权

US4237432A Surface acoustic wave filter with feedforward to reduce triple transit effects 失效
标题翻译：表面声波滤波器具有前馈，减少三重转接效应
公开(公告)号：US4237432A
公开(公告)日：1980-12-02
申请号：US17215
申请日：1979-03-05
申请人： Marshall Y. Huang , Albert J. Grote , Kuo-Hsiung Yen
发明人： Marshall Y. Huang , Albert J. Grote , Kuo-Hsiung Yen
IPC分类号： H03H9/02 , H03H9/64 , H03H9/25
CPC分类号： H03H9/0285 , H03H9/0296
摘要： A surface acoustic wave filter device having an input transducer and an output transducer, in which triple transit effects are minimized by the addition of a second output transducer spaced from the input transducer, preferably by a distance three times the spacing between the normal input and output transducers, to duplicate the triple transit path length. A triple transit signal is thereby simulated at the second output transducer, is adjusted in amplitude and phase, and is applied to a summing circuit in which the simulated triple transit signal is subtracted from a signal derived from the original output transducer, to effectively cancel the triple transit component.
摘要翻译：具有输入换能器和输出换能器的表面声波滤波器装置，其中通过添加与输入换能器间隔开的第二输出换能器来最小化三重转接效应，优选地距离正常输入和输出之间的距离的三倍传感器，以复制三重传输路径长度。在第二输出传感器上模拟三通道信号，在幅度和相位上进行调整，并将其应用于从源自原始输出换能器的信号中减去模拟三重转接信号的求和电路，以有效地消除三重运输组件。

2. 发明授权

US4641369A Local oscillator and mixer assembly 失效
标题翻译：本地振荡器和搅拌机总成
公开(公告)号：US4641369A
公开(公告)日：1987-02-03
申请号：US676324
申请日：1984-11-29
申请人： Albert J. Grote , Raghbir S. Tahim , Kai Chang
发明人： Albert J. Grote , Raghbir S. Tahim , Kai Chang
IPC分类号： H03B9/14 , H03D7/14 , H03D9/06 , H04B1/26
CPC分类号： H03D9/0641 , H03B9/147 , H03D2200/0017 , H03D7/1408 , H03D9/0633
摘要： A radio-frequency mixer and a local oscillator integrated into a single housing, and including a Gunn-type oscillator coupled to the mixer by a section of microstrip transmission line and a section of suspended stripline. A broadside coupler in the suspended stripline provides dc and intermediate-frequency isolation for the mixer, and a block of dielectric material on the microstrip provides improved temperature compensation for the diode oscillator. The entire compact assembly has good conversion loss performance over a relatively wide frequency band, and is relatively insensitive to temperature changes.
摘要翻译：集成在单个外壳中的射频混频器和本地振荡器，并且包括通过一段微带传输线耦合到混频器的Gunn型振荡器和一段悬挂的带状线。悬挂带状线中的宽边耦合器为混频器提供直流和中频隔离，微带上的一组电介质材料为二极管振荡器提供了改进的温度补偿。整个紧凑型组件在相对宽的频带上具有良好的转换损耗性能，并且对温度变化相对不敏感。

3. 发明授权

US5126696A W-Band waveguide variable controlled oscillator 失效
标题翻译： W波段波导可变控制振荡器
公开(公告)号：US5126696A
公开(公告)日：1992-06-30
申请号：US744051
申请日：1991-08-12
申请人： Albert J. Grote , Paul J. Johnson , James R. Hayes
发明人： Albert J. Grote , Paul J. Johnson , James R. Hayes
IPC分类号： H03B1/00 , H03B7/08 , H03B9/14
CPC分类号： H03B9/145 , H03B2201/015 , H03B7/08 , H03B9/146
摘要： A W-band waveguide variable controlled oscillator incorporating a capacitively coupled Gunn diode and varactor diode arranged in such a manner that adverse environmental conditions do not deleteriously effect the stability of the output of the oscillator. The Gunn diode is electrically connected to a waveguide chamber within the oscillator and includes a resonator electrically connected to its end cap. The resonator is electrically connected to a DC bias source by means of a DC bias filter and a wire inductor. Opposite and above the Gunn diode is a varactor assembly including a varactor diode, which is also electrically connected to a DC bias source through a DC bias filter. A variable coupling spacer within the varactor assembly adjusts the distance between the varactor diode and the Gunn diode such that the capacitive coupling between the two can be adjusted. In addition, an adjustable back-short is incorporated within the waveguide channel to adjust the power output of the oscillator. Also, a fine tuning screw is threadably engaged to the waveguide channel to adjust the capacitance of the resonator. This configuration enables the oscillator to have a stable output and low power losses under adverse environmental conditions.
摘要翻译：一种W波段波导可变控制振荡器，其包含电容耦合的耿氏二极管和变容二极管，其排列方式使得不利的环境条件不会有害地影响振荡器输出的稳定性。耿氏二极管电连接到振荡器内的波导室，并且包括电连接到其端盖的谐振器。谐振器通过DC偏置滤波器和线电感器电连接到DC偏置源。耿氏二极管的相对和上方是包括变容二极管的变容二极管，变容二极管也通过直流偏置滤波器电连接到直流偏压源。可变电抗器组件内的可变耦合间隔件调整变容二极管和耿氏二极管之间的距离，使得可以调节两者之间的电容耦合。此外，在波导通道内并入可调节的反向短路，以调整振荡器的功率输出。此外，微调螺丝螺纹地接合到波导通道以调节谐振器的电容。该配置使得振荡器在不利的环境条件下具有稳定的输出和低功率损耗。

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