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    • 7. 发明授权
    • Transmission circuit using strip line in three dimensions
    • 传输电路采用带状线三维
    • US6023211A
    • 2000-02-08
    • US986306
    • 1997-12-05
    • Junichi Somei
    • Junichi Somei
    • H01P3/08H01P5/02H01P5/08H05K1/02H05K3/42H05K1/11
    • H01P3/081H05K1/0251H02M2007/53876H05K2201/0715H05K2201/09336H05K2201/09627H05K2201/09845H05K3/429
    • There is provided a transmission circuit using a strip line which can be formed in three dimensions with simple construction and low cost and which has high reliability. A first microstrip line is formed by sandwiching a dielectric substrate 1 between a first strip conductor 2 provided on a top surface of the dielectric substrate 1 and a first grounding conductor 3 provided on a bottom surface of the dielectric substrate 1. A second microstrip line is formed by sandwiching the dielectric substrate 1 between a second strip conductor 4 provided on the bottom surface of the dielectric substrate 1 and a second grounding conductor 5 provided on the top surface of the dielectric substrate 1. The first strip conductor 2 and the second strip conductor 4 are electrically connected to each other by a connecting through hole 11 provided in the dielectric substrate 1.
    • 提供了一种使用带状线的传输电路,其可以以简单的结构和低成本三维形成,并且具有高可靠性。 通过将电介质基板1夹持在设置在电介质基板1的上表面上的第一带状导体2和设置在电介质基板1的底面上的第一接地导体3之间来形成第一微带线。第二微带线是 通过将电介质基板1夹持在设置在电介质基板1的底面上的第二带状导体4和设置在电介质基板1的上表面的第二接地导体5之间而形成。第一带状导体2和第二带状导体 4通过设置在电介质基板1中的连接通孔11彼此电连接。
    • 9. 发明授权
    • Switching circuit for a satellite broadcasting converter capable of
assuring a high sensitivity
    • 用于能够确保高灵敏度的卫星广播转换器的开关电路
    • US5649311A
    • 1997-07-15
    • US464560
    • 1995-06-05
    • Junichi Somei
    • Junichi Somei
    • H04B1/18G01R23/15H03J5/24H04B1/26H04B3/44
    • H03J5/242G01R23/15
    • There is provided a switching circuit of a BS converter capable of assuring a high sensitivity. A BS tuner superimposes a band switching pulse signal on a power voltage when selecting a high band, and supplies the resulting signal to a BS converter. The BS converter amplifies a pulse signal selected by a filter circuit of a switching circuit by ten times in a differential amplifier, rectifies the resulting signal in a rectifying circuit, and compares the resulting signal with a reference voltage in a comparator circuit, thereby detecting the presence or absence of the band switching pulse signal. When the band switching pulse signal is detected, a high-band local oscillator is turned on by a drive circuit. When the signal is not detected, a low-band local oscillator is turned on. Thus, by amplifying by about ten times the band switching pulse signal having a voltage of about 0.6 V, a reception frequency band is switchedly selected with high accuracy.
    • 提供了能够确保高灵敏度的BS转换器的开关电路。 当选择高频带时,BS调谐器将频带切换脉冲信号叠加在电源电压上,并将得到的信号提供给BS转换器。 BS转换器将差分放大器中由开关电路的滤波器电路选择的脉冲信号放大十倍,对整流电路中的结果进行整流,并将比较电路中的结果信号与参考电压进行比较,从而检测 存在或不存在频带切换脉冲信号。 当检测到频带切换脉冲信号时,高频本地振荡器由驱动电路导通。 当未检测到信号时,低频本地振荡器导通。 因此,通过将具有约0.6V的电压的频带切换脉冲信号放大约十倍,以高精度切换地选择接收频带。