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    • 92. 发明申请
    • OSCILLATOR CIRCUIT
    • 振荡器电路
    • WO2010076670A1
    • 2010-07-08
    • PCT/IB2009/050014
    • 2009-01-05
    • FREESCALE SEMICONDUCTOR, INC.TROTTA, Saverio
    • TROTTA, Saverio
    • H03B5/12H03B5/18
    • H03B5/1847H03B2200/007H03B2200/0098
    • An oscillator circuit (10) comprises a push-push oscillator (12) and a differential output (14, 15), comprising a first (16) and a second (18) output circuit. The push-push oscillator (12) has a first (20) and a second (22) branch. Each of the first (20) and second (22) branch comprises an own voltage divider branch (24, 26) of a common bridge circuit (28). Each of the first (24) and second (26) voltage divider branches comprises an own pair of micro-strip lines (30, 32; 34, 36) connected in series. Each of the first (24) and second (26) voltage divider branches has an own tap (C, D). Both taps (C, D) are connected to each other by at least one of a first capacity (42) and a micro-strip line. The differential output comprises a first (14) and a second (15) output terminal. The first output terminal (14) is connected via the first output circuit (16) to a first node (A). The second output terminal (15) is connected via the second output circuit (18) to a second node (B). Each of the first (A) and second (B) nodes of the push-push oscillator (12) is a common node (A, B) of both of the first (20) and the second branches (22).
    • 振荡器电路(10)包括推挽振荡器(12)和差分输出(14,15),包括第一输入(16)和第二输出电路(18)。 推压振荡器(12)具有第一(20)和第二(22)分支。 第一(20)和第二(22)分支中的每一个分支包括共用电桥电路(28)的自己的分压器分支(24,26)。 第一(24)和第二(26)分压器分支中的每一个分别包括串联连接的自己的一对微带线(30,32; 34,36)。 第一(24)和第二(26)分压器分支中的每一个具有自己的抽头(C,D)。 两个抽头(C,D)通过第一容量(42)和微带线中的至少一个相互连接。 差分输出包括第一输入端(14)和第二输出端子(15)。 第一输出端子(14)经由第一输出电路(16)连接到第一节点(A)。 第二输出端子(15)经由第二输出电路(18)连接到第二节点(B)。 推挽振荡器(12)的第一(A)和第二(B)节点中的每一个是第一(20)和第二分支(22)两者的公共节点(A,B)。
    • 96. 发明申请
    • VOLTAGE CONTROLLED OSCILLATOR TUNING BY METAL LID APERTURE SELECTION
    • 电压控制振荡器通过金属引脚选择调谐
    • WO99045634A1
    • 1999-09-10
    • PCT/US1998/027004
    • 1998-12-18
    • H01P7/08H03B1/00H03B5/02H03B5/12H03B5/18
    • H03B5/1847H03B2200/004H03B2201/014H03B2201/0208Y10T29/49004
    • A method (100) for tuning a voltage controlled oscillator by changing electrical circuit parasitics includes a first step (102) of providing a voltage controlled oscillator circuit on a circuit board and a plurality of different metal lids each having different numbers, sizes and locations of holes. Each different lid presents a different electrical circuit parasitic to the voltage controlled oscillator. In a second step (104), the voltage controlled oscillator frequency is measured, and the frequency shift needed to achieve a desired operating frequency is calculated in a third step (106). In a fourth step (108), a lid is chosen that will present the parasitics needed to provide the amount of frequency shift needed. As a last step (110), the chosen lid is attached to the circuit board to obtain the desired nominal operating frequency from the voltage controlled oscillator.
    • 一种用于通过改变电路寄生效应来调节压控振荡器的方法(100)包括在电路板上提供压控振荡器电路的第一步骤(102)和多个不同的金属盖,每个金属盖具有不同的数量,尺寸和位置 孔。 每个不同的盖子呈现寄生于压控振荡器的不同电路。 在第二步骤(104)中,测量压控振荡器频率,并且在第三步骤(106)中计算达到期望工作频率所需的频移。 在第四步骤(108)中,选择一个盖子,其将呈现提供所需频移量所需的寄生效应。 作为最后一步(110),所选择的盖子连接到电路板,以从压控振荡器获得所需的标称工作频率。
    • 97. 发明申请
    • LASER TUNABLE THICK FILM MICROWAVE RESONATOR FOR PRINTED CIRCUIT BOARDS
    • 用于印刷电路板的激光可调薄膜微波谐振器
    • WO99041799A1
    • 1999-08-19
    • PCT/US1999/003355
    • 1999-02-17
    • H01P7/08H03B5/18
    • H01P7/088H03B5/1847
    • The resonator (10) of the present invention is preferably made of low cost alumina offering performance in a variable frequency oscillator application that is nearly equivalent to that of a high Q dielectric design. The resonator utilizes a unique geometric structure which employs a transmission line (18) preferably on alumina (11), conducting via holes (16) and a topside ground pattern formed with a thick film of silver and/or palladium. A plurality of resonators may be formed by a step and repeat pattern then snapped apart for low cost, high volume manufacture. The resonator may be tuned in both a vertical and horizontal direction by removing topside metal from the resonator, to raise and lower the frequency, until the desired frequency is met. Low phase noise is preferably achieved by using a slab resonator that is short in length in combination with a fairly large loading capacitor.
    • 本发明的谐振器(10)优选地由低成本的氧化铝制成,其在可变频率振荡器应用中提供几乎等同于高Q电介质设计的性能。 谐振器利用独特的几何结构,其采用优选在氧化铝(11)上的传输线(18),导电通孔(16)和形成有银和/或钯的厚膜的顶侧接地图案。 多个谐振器可以通过步骤形成,并且重复图案然后被分开以便低成本,大批量制造。 谐振器可以通过从谐振器中去除顶侧金属而在垂直和水平方向上进行调谐,以提高和降低频率,直到满足期望的频率。 优选地,通过使用与相当大的负载电容器组合的长度短的平板谐振器来实现低相位噪声。