公开(公告)号：US3755758A

公开(公告)日：1973-08-28

申请号：US3755758D

申请日：1971-10-04

Applicant: CALIFORNIA MICROWAVE

Inventor： LEESON D

IPC: H03B1/00 ,  H03B5/18

CPC classification number: H03B5/1841 ,  H03B2200/0056 ,  H03B2201/0208 ,  H03B2201/0258

Abstract: A high stability digitally tuned L-band cavity oscillator employs PIN diode switching of the cavity resonant frequency to provide an output signal at any one of 16 discrete frequencies under the control of a four-wire digital input. An analog input is added to adjust the center-line frequency over a bandwidth at least as wide as the least significant incremental step to further provide for AFC and phase lock capability. A half-wave resonator cavity is used with a quarter-wave member notched at intervals along its length. A switching diode adapted to be coupled to a source of digital signals is coupled across each notch to digitally control the electrical characteristics of the resonator and its output frequency. A varactor provides the analog and fine tuning control.

Abstract translation: 高稳定性数字调谐的L波段空腔振荡器采用PIN谐振频率的PIN二极管切换，在四线数字输入的控制下，以16个离散频率中的任一个提供输出信号。 添加模拟输入以调整至少与最低有效增量步长一样宽的带宽上的中心线频率，以进一步提供AFC和锁相能力。 使用半波谐振腔，其四分之一波长的部件沿其长度间隔开。 适于耦合到数字信号源的开关二极管跨越每个陷波耦合，以数字地控制谐振器的电特性及其输出频率。 变容二极管提供模拟和微调控制。

公开(公告)号：US3614667A

公开(公告)日：1971-10-19

申请号：US3614667D

申请日：1964-03-19

Applicant: ITEK CORP

Inventor： FLETCHER MARTIN W

IPC: H03B1/00 ,  H03B5/36 ,  H03J5/24 ,  H03C3/28

CPC classification number: H03J5/246 ,  H03B5/366 ,  H03B2200/0048 ,  H03B2200/0052 ,  H03B2200/0056 ,  H03B2201/0258

Abstract: 6. Apparatus for pulse modulating a crystal oscillator comprising: A TRANSISTOR AMPLIFIER; A PLURALITY OF PARALLEL FEEDBACK PATHS CONNECTED TO SAID AMPLIFIER, EACH SAID FEEDBACK PATH INCLUDING A CRYSTAL HAVING A DIFFERENT RESONANT FREQUENCY; SWITCH MEANS ASSOCIATED WITH EACH OF SAID FEEDBACK PATHS, EACH SAID SWITCH MEANS NORMALLY OPEN TO DISCONNECT EACH OF SAID FEEDBACK PATHS FROM SAID AMPLIFIER; MEANS FOR APPLYING A PULSE MODULATING SIGNAL TO AT LEAST THE BASE ELECTRODE OF ONE TRANSISTOR FORMING ONE STAGE OF SAID AMPLIFIER TO RENDER IT CONDUCTIVE; GAIN CONTROL MEANS CONNECTED TO THE STAGE OF SAID AMPLIFIER TO WHICH SAID-PULSE MODULATING SIGNAL IS APPLIED FOR PROVIDING MAXIMUM GAIN IN SAID AMPLIFIER WHEN SAID AMPLIFIER IS FIRST RENDERED CONDUCTIVE AND FOR DECREASING THIS GAIN THEREAFTER; AND MEANS FOR APPLYING SUCCESSIVE SWITCHING SIGNALS TO SAID SWITCH MEANS, ONE AT A TIME, TO THEREBY CONNECT DIFFERENT ONES OF SAID FEEDBACK PATHS TO SAID AMPLIFIER, WHEREBY AN OUTPUT SIGNAL OF THE FREQUENCY OF THE CRYSTAL ASSOCIATED WITH THE CONNECTED FEEDBACK PATH IS GENERATED.

公开(公告)号：US3296550A

公开(公告)日：1967-01-03

申请号：US30822963

申请日：1963-09-11

Applicant: NIPPON ELECTRIC CO

Inventor： TADASU HUKAMI ,  TADASHI TOMIZAWA

IPC: H03B1/00 ,  H03B5/36 ,  H03K17/62 ,  H03K19/162 ,  H04B1/50

CPC classification number: H04B1/50 ,  H03B5/366 ,  H03B2200/0046 ,  H03B2200/0048 ,  H03B2201/0258 ,  H03K17/6257 ,  H03K17/6285 ,  H03K19/162

公开(公告)号：US3243726A

公开(公告)日：1966-03-29

申请号：US29195063

申请日：1963-07-01

Applicant: SIEMENS AG ALBIS

Inventor： PETER AEMMER

IPC: G01S13/84 ,  H03B1/00 ,  H03B5/36

CPC classification number: G01S13/84 ,  H03B5/36 ,  H03B2200/0048 ,  H03B2200/0056 ,  H03B2201/0258

公开(公告)号：US20160173137A1

公开(公告)日：2016-06-16

申请号：US14971086

申请日：2015-12-16

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tuan Thanh TA ,  Akihide SAI ,  Masanori FURUTA

IPC: H04B1/00 ,  H04L25/08 ,  H04B1/16 ,  H03B9/14 ,  H03F3/19

CPC classification number: H04B1/0007 ,  H03B5/12 ,  H03B9/141 ,  H03B2201/0208 ,  H03B2201/0258 ,  H03F3/19 ,  H03F2200/294 ,  H03L7/0991 ,  H03L7/22 ,  H03L2207/06 ,  H04B1/16

Abstract: According to an embodiment, a receiver includes a voltage controlled oscillator, a frequency-to--digital converter and an input sensitivity controller. In the voltage controlled oscillator, input sensitivity relative to a baseband signal is controlled based on an input sensitivity control signal. The voltage controlled oscillator oscillates at a frequency controlled by a voltage of the baseband signal to generate an oscillation signal. . The frequency--to-digital converter performs frequency-to-digital conversion of the oscillation signal to generate a digital signal. The input sensitivity controller generates the input sensitivity control signal based on the digital signal.

Abstract translation: 根据实施例，接收机包括压控振荡器，频数转换器和输入灵敏度控制器。 在压控振荡器中，基于输入灵敏度控制信号来控制相对于基带信号的输入灵敏度。 压控振荡器以由基带信号的电压控制的频率振荡以产生振荡信号。 。 频数转换器执行振荡信号的频数转换以产生数字信号。 输入灵敏度控制器根据数字信号产生输入灵敏度控制信号。

公开(公告)号：US08963648B2

公开(公告)日：2015-02-24

申请号：US13598426

申请日：2012-08-29

Applicant: Hyman Shanan

Inventor： Hyman Shanan

IPC: H03B5/12 ,  H03B1/04

CPC classification number: H03B1/04 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1265 ,  H03B2200/005 ,  H03B2200/0062 ,  H03B2200/009 ,  H03B2201/0258 ,  H03B2201/0266 ,  H03B2202/03

Abstract: Apparatus and methods are also disclosed related to an oscillator that includes a switching network configured to tune a resonant frequency of a resonant circuit. One such apparatus includes a switching network having a circuit element, such as a capacitor, that can be selectively coupled to the resonant circuit by a switch, such as a field effect transistor. For instance, the switch can electrically couple to circuit element to the resonant circuit when on and not electrically couple the circuit element to the resonant circuit when off. An active circuit can assert a high impedance on an intermediate node between the switch and the circuit element when the switch is off.

Abstract translation: 还公开了一种与振荡器相关的装置和方法，该振荡器包括配置成调谐谐振电路的谐振频率的开关网络。 一种这样的设备包括具有诸如电容器的电路元件的开关网络，其可以通过诸如场效应晶体管的开关选择性地耦合到谐振电路。 例如，当断开时，开关可以在接通时将电路元件电耦合到谐振电路，而不将电路元件电耦合到谐振电路。 当开关关闭时，有源电路可以在开关和电路元件之间的中间节点上断言高阻抗。

公开(公告)号：US20130082788A1

公开(公告)日：2013-04-04

申请号：US13598429

申请日：2012-08-29

Applicant: Hyman Shanan

Inventor： Hyman Shanan

IPC: H03B1/04

CPC classification number: H03B1/04 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1265 ,  H03B2200/005 ,  H03B2200/0062 ,  H03B2200/009 ,  H03B2201/0258 ,  H03B2201/0266 ,  H03B2202/03

Abstract: Apparatus and methods are disclosed related to an oscillator that includes a sustaining amplifier. One such apparatus includes a resonant circuit configured to operate at a resonant frequency, a sustaining amplifier, and a passive impedance network. The resonant circuit can have a first terminal and a second terminal. The sustaining amplifier can include at least a first switch configured to drive the first terminal of the resonant circuit in response to an input at a first control terminal of the first switch. The passive impedance network can be configured to pass a bias to the first control terminal, such as a gate of a field effect transistor, of the first switch. The passive impedance network can be electrically coupled to the second terminal of the resonant circuit and can include at least one inductor.

Abstract translation: 公开了涉及包括维持放大器的振荡器的装置和方法。 一种这样的设备包括被配置为以谐振频率操作的谐振电路，维持放大器和被动阻抗网络。 谐振电路可以具有第一端子和第二端子。 支持放大器可以包括至少第一开关，其被配置为响应于第一开关的第一控制端处的输入来驱动谐振电路的第一端子。 无源阻抗网络可以被配置为将偏置传递到第一开关的第一控制端子，例如场效应晶体管的栅极。 无源阻抗网络可以电耦合到谐振电路的第二端子并且可以包括至少一个电感器。

公开(公告)号：US5982243A

公开(公告)日：1999-11-09

申请号：US305190

申请日：1999-05-04

Applicant: Matthew D. Pope

Inventor： Matthew D. Pope

IPC: H03B1/00 ,  H03B5/12

CPC classification number: H03B5/1231 ,  H03B5/1203 ,  H03B5/1243 ,  H03B5/1262 ,  H03B2201/0208 ,  H03B2201/0258

Abstract: An electronic oscillator of the Colpitts type with an amplifying element and a tank circuit. The tank circuit includes a parallel tuned resonant circuit, a series tuned resonant circuit and a switching circuit that selectively connects one of the resonant circuits to the tank circuit. The oscillator operates at a first frequency in the parallel tuned mode and a second frequency that is substantially twice the first frequency in the series tuned mode.

Abstract translation: Colpitts型电子振荡器，具有放大元件和储能电路。 储能电路包括并联调谐谐振电路，串联调谐谐振电路和选择性地将谐振电路之一连接到储能电路的开关电路。 振荡器以并行调谐模式的第一频率工作，而第二频率基本上是串联调谐模式中第一频率的两倍。

公开(公告)号：US5880643A

公开(公告)日：1999-03-09

申请号：US971770

申请日：1997-11-17

Applicant: Christian Bjork ,  Martin Lantz ,  Torbjorn Gardenfors ,  Bojko Marholev

Inventor： Christian Bjork ,  Martin Lantz ,  Torbjorn Gardenfors ,  Bojko Marholev

IPC: H03B1/00 ,  H03B5/12 ,  G01R23/00

CPC classification number: H03B5/1209 ,  H03B5/1243 ,  H03B2201/0258

Abstract: A monolithic high frequency voltage controlled oscillator trimming circuit includes a plurality of capacitance loops selectively connected between a first and second differential input of a voltage oscillator active network. A plurality of diodes, connected in series with the respective plurality of capacitance loops, selectively connect respective capacitance loops between the first and second differential input when forward biased. In a similar fashion, the plurality of diodes selectively disconnect the respective capacitance loops from the first and second differential input when reverse biased. A controller applies a forward biasing voltage to the diode of the selected capacitance loop to connect the capacitance loop to the active network of the voltage controlled oscillator and applies a reverse biasing voltage to the diode of the selected capacitance loop to disconnect the capacitance loop from the active network. The diodes used in the capacitance loops form a switch operable at high frequencies and are formed from a bipolar complementary metal oxide semiconductor electro-static discharge protection diode.

Abstract translation: 单片高频压控振荡器微调电路包括选择性地连接在电压振荡器有源网络的第一和第二差分输入端之间的多个电容回路。 当正向偏置时，与相应的多个电容回路串联连接的多个二极管有选择地连接第一和第二差分输入之间的各个电容回路。 以类似的方式，当反向偏置时，多个二极管选择性地断开相应的电容环与第一和第二差分输入。 控制器向所选择的电容环路的二极管施加正向偏置电压，以将电容回路连接到压控振荡器的有源网络，并向所选择的电容环路的二极管施加反向偏置电压，以将电容环路与 活动网络 在电容环路中使用的二极管形成可在高频下工作并由双极互补金属氧化物半导体静电放电保护二极管形成的开关。

公开(公告)号：US3495187A

公开(公告)日：1970-02-10

申请号：US3495187D

申请日：1968-04-10

Applicant: INT STANDARD ELECTRIC CORP

Inventor： JEZIERSKI EUGENIUSZ CZESLAW JA ,  MCLELLAN JOHN

IPC: H03B1/00 ,  H03B5/36 ,  H03B5/30

CPC classification number: H03B5/36 ,  H03B2200/0026 ,  H03B2200/0048 ,  H03B2200/0056 ,  H03B2200/007 ,  H03B2201/02 ,  H03B2201/0258 ,  H03B2201/0283