公开(公告)号：WO1992004764A1

公开(公告)日：1992-03-19

申请号：PCT/JP1991001158

申请日：1991-08-30

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. ,  FUJISAKI, Hirotaka

Inventor： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

IPC: H03B05/18

CPC classification number: H01P7/082 ,  H03B5/1847 ,  H03B2200/004 ,  H03B2201/014 ,  H03B2201/0208 ,  H03B2201/0225

Abstract: A voltage controlled oscillator the free-running frequency of which can be easily adjusted, even if its oscillation frequency is 2 GHz or more, by adding a trimming stub (3) for adjusting the free-running frequency to a microstrip line resonator (4) in parallel with it.

Abstract translation: 通过添加用于将自由运行频率调整到微带线谐振器（4）的修整短截线（3），即使其振荡频率为2GHz以上，也可以容易地调整其自由运转频率的压控振荡器， 与之并行。

公开(公告)号：WO1991001590A1

公开(公告)日：1991-02-07

申请号：PCT/US1990004190

申请日：1990-07-17

Applicant: AT&E CORPORATION

Inventor： AT&E CORPORATION ,  SUTER, Richard, R.

IPC: H03B05/04

CPC classification number: H03L1/023 ,  H03B2201/0208

Abstract: A circuit (10) for temperature compensation of a varactor voltage controlled oscillator control signal (Vtune) includes a proportional to absolute temperature (PTAT) current source (32) and an adjustable, temperature stable current source (34). The difference between these two current sources defines an offset current (I2-I1, 40). The varactor control signal voltage (VIN) is shifted by a predetermined reference voltage (VREF) and offset by an offset voltage proportional to the offset current (I2-I1), in a differential amplifier portion of the circuit (36), to provide a tuning signal (Vtune) for controlling the varactor (DVCO) so as to compensate for the varactor capacitance temperature drift. The adjustable, temperature stable current source (34) allows tuning (R1) the circuit in order to precisely tune the VCO to a desired frequency under a predetermined set of operating conditions in order to correct component and process variations.

公开(公告)号：WO1987000706A1

公开(公告)日：1987-01-29

申请号：PCT/JP1986000358

申请日：1986-07-14

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. ,  KUBO, Kazuhiko ,  USUI, Akira ,  NAGAI, Hiroyuki

Inventor： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

IPC: H03B05/04

CPC classification number: H03L1/023 ,  H03B5/1221 ,  H03B5/1231 ,  H03B5/1243 ,  H03B5/1811 ,  H03B2200/004 ,  H03B2201/0208

Abstract: A local oscillator used for communication equipment or a double superheterodyne tuner. The local oscillator comprises a coaxial resonator (1), an amplifier circuit (26) of which the output terminal is connected to a central conductor of the coaxial resonator (1) via a first capacitor (2) and of which the input terminal is connected to the central conductor via a second capacitor (3), and a variable-capacity diode (5) of which one terminal is connected to the central conductor of the coaxial resonator (1) via a third capacitor (4) and of which the other terminal is grounded in an alternating current manner, and wherein the oscillation frequency changes depending upon the voltage applied to the variable-capacity diode (5). Factors of temperature drift in the oscillation frequency can be substantially eliminated, and stable oscillation can be obtained by simply compensating the temperature characteristics of the coaxial resonator (1).

Abstract translation: 用于通信设备的本地振荡器或双超外差调谐器。 本地振荡器包括同轴谐振器（1），放大器电路（26），其输出端经由第一电容器（2）连接到同轴谐振器（1）的中心导体，并且其输入端子被连接 经由第二电容器（3）到中心导体，以及可变容量二极管（5），其中一个端子经由第三电容器（4）连接到同轴谐振器（1）的中心导体，并且其中一个 端子以交流方式接地，并且其中振荡频率根据施加到可变容量二极管（5）的电压而改变。 可以基本上消除振荡频率的温度漂移的因素，通过简单地补偿同轴谐振器（1）的温度特性，可以获得稳定的振荡。

公开(公告)号：TR9600643A2

公开(公告)日：1997-03-21

申请号：TR9600643

申请日：1996-08-05

Applicant: TEMIC TELEFUNKEN MIKROELECTRON

Inventor： FORSTNER HANS-PETER ,  STUMP SIMON ,  MANN ULRICH

IPC: H03B1/00 ,  H03B5/12 ,  H03J3/18

CPC classification number: H03J3/185 ,  H03B5/1203 ,  H03B5/1231 ,  H03B5/1243 ,  H03B5/1293 ,  H03B2200/004 ,  H03B2201/0208

公开(公告)号：NO924553A

公开(公告)日：1993-05-27

申请号：NO924553

申请日：1992-11-25

Applicant: SIEMENS AG

Inventor： ELIAS HOLGER

IPC: H01P7/04 ,  H03B1/00 ,  H03B1/04 ,  H03B5/18

CPC classification number: H01P7/04 ,  H03B5/1805 ,  H03B5/187 ,  H03B2200/002 ,  H03B2201/0208 ,  H03B2201/0225 ,  H03B2202/03 ,  H03B2202/05

公开(公告)号：NO910481A

公开(公告)日：1991-08-09

申请号：NO910481

申请日：1991-02-07

Applicant: HUGHES AIRCRAFT CO

Inventor： POELKER JAMES ,  ROBERTSON RALSTON S

IPC: H01P1/00 ,  H03B1/00 ,  H03B5/18 ,  H03B9/14 ,  H03B7/14

CPC classification number: H03B9/141 ,  H03B9/146 ,  H03B2009/126 ,  H03B2201/0208

公开(公告)号：ZA8404169B

公开(公告)日：1985-01-30

申请号：ZA8404169

申请日：1984-06-04

Applicant: TELEFUNKEN ELECTRONIC GMBH

Inventor： HEIGL FRANZ ,  REHM JOSEF

IPC: H04B1/26 ,  H03B1/00 ,  H03B5/12 ,  H03D7/12 ,  H03J5/24 ,  H04B ,  H04N

CPC classification number: H03J5/244 ,  H03B5/1203 ,  H03B5/1231 ,  H03B5/1243 ,  H03B2200/004 ,  H03B2200/0048 ,  H03B2200/0052 ,  H03B2200/0056 ,  H03B2201/0208 ,  H03D7/12

公开(公告)号：WO2019084921A1

公开(公告)日：2019-05-09

申请号：PCT/CN2017/109391

申请日：2017-11-03

Applicant: HONG KONG APPLIED SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE COMPANY LIMITED

Inventor： GUO, Huimin ,  ZHOU, Zhong Liang ,  LAI, Yat Tung

IPC: H03B7/00

CPC classification number: H03B5/04 ,  H03B5/24 ,  H03B5/26 ,  H03B2200/005 ,  H03B2201/0208 ,  H03B2201/0266 ,  H03K3/0231

Abstract: An RC oscillator has a variable capacitor (26) that sets the output frequency. The variable capacitor (26) has m binary-weighted switched capacitor arrays, and each binary-weighted switched capacitor array has binary-weighted capacitors. P binary bits are decoded into an m-bit thermometer code that selects one of the m binary-weighted switched capacitor arrays to use n binary bits to switch its binary-weighted capacitors. Other binary-weighted switched capacitor arrays have all their capacitors switched on, or all their capacitors switched off by the thermometer code. The smallest or unit capacitance of each binary-weighted switched capacitor array is adjusted to compensate for the non-linear reciprocal relationship of frequency being proportional to 1/RC. The unit capacitance is increased for each successive binary-weighted switched capacitor array to reset to the ideal linear relationship of the (p, n)-bit code to frequency.

公开(公告)号：WO2016160729A1

公开(公告)日：2016-10-06

申请号：PCT/US2016/024567

申请日：2016-03-28

Applicant: SI-WARE SYSTEMS

Inventor： MIKHAEL, David, H.G. ,  ELKHOULY, Ahmed ,  HELMY, Ahmed ,  ELDIN, Mohamed A.S. ,  EL-AASSAR, Omar Essam ,  SINOUSSI, Nabil ,  ELSAYED, Ahmed ,  BAHRY, Mohamed Abd El-Moneim

IPC: H03B5/04 ,  H03B5/08

CPC classification number: H03B5/04 ,  H03B5/1265 ,  H03B27/00 ,  H03B2201/0208

Abstract: Techniques are described that enables controlling the TNULL characteristic of a self- compensated oscillator by controlling the magnitude and direction of the frequency deviation versus temperature, and thus, compensating the frequency deviation.

Abstract translation: 描述了通过控制频率偏差对温度的幅度和方向来控制自补偿振荡器的TNULL特性的技术，从而补偿了频率偏差。

公开(公告)号：WO2015133472A1

公开(公告)日：2015-09-11

申请号：PCT/JP2015/056210

申请日：2015-03-03

Applicant: 日本電波工業株式会社

Inventor： 中岡　高司 ,  赤池　和男 ,  星上　浩 ,  小林　薫

IPC: H03B5/32

CPC classification number: H03B5/32 ,  H03B5/366 ,  H03B2201/0208

Abstract: 　水晶発振器１は、水晶振動子１２を第１周波数で発振させる第１発振回路１３と、水晶振動子１２と第１発振回路１３とを有する第１発振系統のインピーダンスを調整する第１インピーダンス調整回路１７と、水晶振動子１２を第１周波数とは異なる第２周波数で発振させる第２発振回路１４と、水晶振動子１２と第２発振回路１４とを有する第２発振系統のインピーダンスを調整する第２インピーダンス調整回路１８と、第１インピーダンス調整回路１７及び第２インピーダンス調整回路１８を制御する制御回路１９とを備える。

Abstract translation: 石英振荡器（1）设置有：以第一频率振荡石英谐振器（12）的第一振荡电路（13） 调整具有石英谐振器（12）和第一振荡电路（13）的第一振荡系统的阻抗的第一阻抗调整电路（17）。 第二振荡电路（14），其以与第一频率不同的第二频率振荡石英谐振器（12）; 调节具有所述石英谐振器（12）和所述第二振荡电路（14）的第二振荡系统的阻抗的第二阻抗调整电路（18）。 以及控制第一阻抗调节电路（17）和第二阻抗调整电路（18）的控制电路（19）。