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    • 3. 发明授权
    • High permitivity dielectric microstrip dipole antenna
    • 高介电性微带偶极天线
    • US5021799A
    • 1991-06-04
    • US374817
    • 1989-07-03
    • Joseph P. KobusRonald F. Kielmeyer, Jr.Arthur Diaz
    • Joseph P. KobusRonald F. Kielmeyer, Jr.Arthur Diaz
    • H01Q9/28
    • H01Q9/285
    • A miniature microstrip dipole antenna is constructed on a high permitivity dielectric substrate for compactibility with microwave monolithic integrated circuit (MMIC) technology. The antenna comprises two dipole arms coupled to opposite faces of the substrate. The dipole arms are coupled to a microstrip transmission line through a tapered balun. The tapered balun comprises two conductors on opposite faces of the substrate which are coupled to corresponding dipole arms. The conductors are separated laterally (with respect to the width of the face of the substrate) a calculated distance, and are gradually tapered. This allows the balun to efficiently transform unbalanced signals at the microstrip transmission line to balanced signals at the plurality of dipole arms. Alternatively, the balun allows balanced signals at the dipole arms to be efficiently transformed to unbalanced signals at the microstrip transmission line. To achieve additional radiation directivity, a ground plane is coupled to and parallel with a back face of the substrate. By using a high dielectric substrate, the cavity formed between the substrate and the ground plane is relatively very shallow.
    • 微型微带偶极天线由高介电性介质基片构成,用于微波单片集成电路(MMIC)技术的紧凑性。 天线包括耦合到衬底的相对面的两个偶极臂。 偶极臂通过锥形平衡 - 不平衡转换器耦合到微带传输线。 锥形平衡 - 不平衡变压器包括耦合到对应偶极臂的衬底相对面上的两个导体。 导体横向(相对于基板的表面的宽度)分开计算的距离,并逐渐变细。 这允许平衡 - 不平衡变换器有效地将微带传输线处的不平衡信号转换成多个偶极臂处的平衡信号。 或者,平衡 - 不平衡转换器允许在偶极臂处的平衡信号被有效地转换成微带传输线上的不平衡信号。 为了获得附加的辐射方向性,接地平面耦合到衬底的背面并平行于衬底的背面。 通过使用高电介质衬底,形成在衬底和接地平面之间的腔相对较浅。
    • 4. 发明授权
    • Analog frequency divider utilizing two amplifiers and a LC resonant
circuit
    • 使用两个放大器和LC谐振电路的模拟分频器
    • US5192875A
    • 1993-03-09
    • US787474
    • 1991-11-04
    • Ronald F. Kielmeyer, Jr.
    • Ronald F. Kielmeyer, Jr.
    • H03B19/14
    • H03B19/14
    • An microwave analog frequency divider capable of ten percent bandwidth at 10 GHz has push-push amplifiers forming an injection locked oscillator. The input frequency f.sub.i is injected at the amplifier reference terminals. The amplifier control terminals are coupled by L's and the reference terminals are coupled by C's and the reference and control terminals form with the L's and C's a resonant circuit tuned approximately to the output frequency f.sub.o =f.sub.i /N, where N is the divisor. Parallel resonant circuits in the f.sub.i injection path have high impedance at f.sub.o to prevent loading of the oscillator. A control device in the f.sub.i injection path turns the oscillator on when f.sub.i is present and off when f.sub.i is absent. Matching networks are included at input, output and between the control device and the oscillator to obtain efficient operation.
    • 10 GHz带宽为10%的微波模拟分频器具有形成注入锁定振荡器的推挽放大器。 输入频率fi注入放大器参考端。 放大器控制端子由L s耦合,参考端子由C耦合,参考和控制端子形成,L和C的谐振电路近似调谐到输出频率fo = fi / N,其中N是除数。 fi注入路径中的并联谐振电路在fo处具有高阻抗,以防止振荡器的负载。 当fi不存在时,fi注入路径中的控制装置会使振荡器接通,如果fi存在则关闭振荡器。 匹配网络包括在输入,输出和控制设备与振荡器之间,以获得有效的操作。