公开(公告)号：EP0495598A1

公开(公告)日：1992-07-22

申请号：EP92300251.3

申请日：1992-01-10

申请人： RAYTHEON COMPANY

发明人： Russell, Mark E.

IPC分类号： H03D9/06

CPC分类号： H03D9/0633 ,  H03D2200/0037 ,  H03D2200/009

摘要： A mixer (20) has a diode pair (24), a first RF propagation network (22a) having a first end coupled to a first terminal (20a) of the mixer (20) and a second end coupled to a first electrode (24a) of the diode pair (24). A network (28) is coupled to the first RF propagation network (22a) for providing a low impedance DC signal path to ground and for providing a high impedance signal path to signals propagating at a first radio frequency (RF) frequency received at the first terminal (20a). A first transmission line resonator (30) is coupled to the first RF propagation network (22a) and has an electrical pathlength which is one quarter of a wavelength at a second RF frequency (local oscillator frequency LO). A second RF propagation network (22b) has a first end coupled to a second terminal (20b) of the mixer (20) and a second end coupled to a second electrode (24b) of the diode pair (24). A second transmission line resonator (32) is coupled to the second RF propagation network (22b) and has an electrical pathlength which is one quarter of a wavelength at the first RF frequency. A further network (34) has a first end coupled to the second RF propagation network (22b) and a second end coupled to a third terminal (20c) of the mixer (20) to signals propagating at a third RF frequency (the intermediate frequency IF) and for providing a high impedance at its first end to signals propagating along the second RF propagation network (22b) at the second RF frequency (local oscillartor frequency LO). The use of resonators (30,32) instead of filters enables the mixer to be made in the form of a hybrid monolithic microwave/millimetre wave integrated circuit (HMIMIC).

摘要翻译： 混合器（20）具有二极管对（24），第一RF传播网络（22a），其具有耦合到混合器（20）的第一端子（20a）的第一端和耦合到第一电极（24a）的第二端 ）二极管对（24）。 网络（28）耦合到第一RF传播网络（22a），用于提供到地面的低阻抗DC信号路径，并且用于向在第一RF接收的第一射频（RF）频率传播的信号提供高阻抗信号路径 端子（20a）。 第一传输线谐振器（30）耦合到第一RF传播网络（22a），并且具有在第二RF频率（本地振荡器频率LO）下波长的四分之一的电通路长度。 第二RF传播网络（22b）具有耦合到混合器（20）的第二端子（20b）的第一端和耦合到二极管对（24）的第二电极（24b）的第二端。 第二传输线谐振器（32）耦合到第二RF传播网络（22b），并且具有在第一RF频率下四分之一波长的电通路长度。 另一个网络（34）具有耦合到第二RF传播网络（22b）的第一端和耦合到混频器（20）的第三端子（20c）的第二端，以在第三RF频率（中频） IF），并且用于在其第一端处以在第二RF频率（本地振荡器频率LO）沿着第二RF传播网络（22b）传播的信号提供高阻抗。 使用谐振器（30,32）代替滤波器使混合器能够以混合单片微波/毫米波集成电路（HMIMIC）的形式制成。

公开(公告)号：EP0190902A3

公开(公告)日：1988-07-27

申请号：EP86300694

申请日：1986-02-03

申请人： NEC CORPORATION

发明人： Shizume, Yasumichi c/o NEC Corporation

IPC分类号： H03D09/06

CPC分类号： H03D9/0633 ,  H03D7/18 ,  H03D2200/0037 ,  H03D2200/009

摘要： In order to be able to use a selected one of two local oscillation signals with respective input terminals (2, 3), a microwave mixer has a radio frequency input terminal connected by way of a transmission line section (5) to one terminal of a mixer diode (6). The other diode terminal is connected to a quarter wavelength line section (7) and to an intermediate frequency output terminal (4) by way of a line section incorporating a low pass filter (10). Transmission line sections connected to the local oscillation terminals (2,3) are coupled to the quarter wavelength section (7) by respective distribution coupling type bandpass filters (8,9) tuned to the two different local oscillation frequencies.

公开(公告)号：EP0068870A2

公开(公告)日：1983-01-05

申请号：EP82303372.5

申请日：1982-06-28

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人： Saka, Hiroshi ,  Tanaka, Toshihide

IPC分类号： H03D9/06

CPC分类号： H03D9/0633 ,  H03D2200/0037

摘要： In a mixer using a planar circuit such as a strip line or a microstrip line etc., an IF signal interruption circuit (9, 27) which passes an RF signal but exhibits an open-circuit impedance against an IF signal is provided in shunt with a main line (2,21) on which the RF signal propagates toward a mixer diode (3, 22), and a low-pass filter (10, 11, 28) is connected in the vicinity of the IF signal interruption circuit in order to short-circuit a mount point of the diode for the IF signal by high frequency short-circuiting technique wherein an open-ended quarter wavelength transmission line or a short-circuited half-wavelength transmission line is used, whereby low noise performance can be obtained over a wide frequency band even under such an operating condition that the IF signal is in the GHz band.

公开(公告)号：EP0707757A1

公开(公告)日：1996-04-24

申请号：EP95915967.0

申请日：1995-05-04

申请人： Philips Electronics N.V. ,  PHILIPS NORDEN AB

发明人： KOOL, Leo ,  CLARKE, Ian, Mc.Cullocy

IPC分类号： H01P5 ,  H03D7 ,  H03D9

CPC分类号： H03D9/0641 ,  H03D7/1408 ,  H03D7/161 ,  H03D7/18 ,  H03D2200/0037 ,  H03D2200/009

摘要： In a microwave transmission system a microwave signal is transmitted by a transmitter (1) using an antenna (2) to a receiver (4) which employs an antenna (3). The received signal is coupled to a mixer (17) via a waveguide section (15) having a cut off frequency being higher than the frequency of the signal generated by the local oscillator unit (18). In this way, undesired emission of local oscillator signal is avoided. Furthermore no additional image rejection filter is required.

公开(公告)号：EP0322612B1

公开(公告)日：1994-03-02

申请号：EP88120535.5

申请日：1988-12-08

申请人： SIEMENS TELECOMUNICAZIONI S.P.A.

发明人： Bonato, Paolo

IPC分类号： H03D9/06

CPC分类号： H03D9/0633 ,  H03B19/18 ,  H03B2200/0032 ,  H03D2200/0037 ,  H03D2200/0082

公开(公告)号：EP0317642A1

公开(公告)日：1989-05-31

申请号：EP88904661.1

申请日：1988-06-01

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人： SHIOMI, Yasufumi

IPC分类号： H03D7/02 ,  H03D9/06 ,  H04J11/00

CPC分类号： H03D7/02 ,  H03D9/0633 ,  H03D2200/0037 ,  H03D2200/0043

摘要： A frequency converter circuit used for a receiver for satellite broadcast. Local oscillation signals are supplied from a single local oscillation circuit (8) to mixer circuits (11a,11 b) of electric signal processing circuits (4, 5) of two or more systems, and a mixer diode (27) of each ofthe mixercircuits (11a, 11 b) is biased with a direct current. Even the mixer diode (27) of the signal processing circuit of the system that is not in operation is biased with the direct current at all times, presenting advantage in regard to stable operation, small size, light weight, and low cost.

摘要翻译： 本地振荡信号从单个本地振荡电路（8）提供给两个或更多个系统的电信号处理电路（4,5）的混频器电路（11a，11b），以及每个混频器的混频二极管（27） 电路（11a，11b）用直流电流偏置。 即使在不工作的系统的信号处理电路的混频器二极管（27）也始终以直流偏置。

公开(公告)号：EP0081818A3

公开(公告)日：1983-10-19

申请号：EP82111430

申请日：1982-12-09

申请人： NEC CORPORATION

发明人： Ishihara, Hiroyuki

IPC分类号： H03D09/06

CPC分类号： H03D9/0608 ,  H03D7/18 ,  H03D9/0633 ,  H03D2200/0037

摘要： A microwave integrated circuit frequency converter includes a first filter (30) for a signal frequency and a second filter (32) for a local oscillator frequency connected at one terminal thereof with one terminal of the signal frequency filter (30) by a line (38), (40) having a predetermined electrical length. A parallel stub line (42) is short-circuited at one end thereof. A diode (34) is connected at its one end to a third filter (36) which is adapted to reflect the signal and local oscillator frequencies while passing an intermediate frequency. The parallel stub line (42) and diode (34) are connected at their other ends to a specific mixing point P on the connecting line (38, 40) at which the impedance is opened for the signal frequency when the local oscillator frequency filter (32) is seen from the signal frequency filter (30) side and the impedance is opened for the local oscillator frequency when the signal frequency filter (30) is seen from the local oscillator frequency filter (32) side.

公开(公告)号：EP1653603A1

公开(公告)日：2006-05-03

申请号：EP05023542.3

申请日：2005-10-27

申请人： Synergy Microwave Corporation

发明人： Rohde, Ulrich ,  Almeida, Antonio ,  Podder, Ajay Kumar ,  Ahmed, Vaseem ,  Ilkov, Nikolay ,  Schoepf, Klaus Juergen

IPC分类号： H03D7/14

CPC分类号： H03D7/1441 ,  H03D7/1408 ,  H03D7/1458 ,  H03D7/1466 ,  H03D7/1491 ,  H03D2200/0007 ,  H03D2200/0023 ,  H03D2200/0037 ,  H03D2200/0074 ,  H03D2200/0088 ,  H03D2200/009

摘要： The present invention relates to passive reflection mixers including single, double, and triple balanced mixers that employ one or more field effect transistors (FETs).
In one aspect, the mixer comprises a first input port for receiving a first input signal from a local oscillator, a second port for connecting to a radio frequency source or sink and a third port for connecting to a intermediate frequency source or sink. The mixer may also comprise switching circuitry coupled to the first input through a coupling element such that the local oscillator is isolated from the second and third ports.
Further still, the switching circuit may comprise a pair of field effect transistors, each gate terminal being connected to the coupling element. In that regard, the coupling element may comprise a 0/180 degree phase splitter.
Further in accordance with this aspect, each gate terminal is coupled to the coupling element through pulse shaping circuitry. The pulse shaping circuitry may, for example comprise a pair of parallel L-C circuit networks, each L-C network being connected to each transistor gate.

摘要翻译： 本发明涉及包括使用一个或多个场效应晶体管（FET）的单，双和三平衡混频器的无源反射混频器。 在一个方面，混频器包括用于从本地振荡器接收第一输入信号的第一输入端口，用于连接到射频源或汇的第二端口和用于连接到中频源或汇的第三端口。 混频器还可以包括通过耦合元件耦合到第一输入的开关电路，使得本地振荡器与第二和第三端口隔离。 此外，开关电路可以包括一对场效应晶体管，每个栅极端子连接到耦合元件。 在这方面，耦合元件可以包括0/180度相位分离器。 此外，根据该方面，每个栅极端子通过脉冲整形电路耦合到耦合元件。 脉冲整形电路可以例如包括一对并行L-C电路网络，每个L-C网络连接到每个晶体管栅极。

公开(公告)号：EP0322612A3

公开(公告)日：1990-03-21

申请号：EP88120535.5

申请日：1988-12-08

申请人： SIEMENS TELECOMUNICAZIONI S.P.A.

发明人： Bonato, Paolo

IPC分类号： H03D9/06

CPC分类号： H03D9/0633 ,  H03B19/18 ,  H03B2200/0032 ,  H03D2200/0037 ,  H03D2200/0082

摘要： An image suppression harmonic frequency converter capable of operating in any microwave range (up to and including the Ka range) is described. Frequency conversion is obtained by making use of a local frequency (flo) which is half that of a conventional converter. In particular, the radiofrequency reception signal is converted into an intermediate frequency signal with suppression of the converted image band. Similarly, the intermediate frequency signal (fi) to be transmitted is converted into a single side band radiofrequency transmission signal (fs). The converter comprises two harmonic mixers (M1, M2), a first in quadrature radiofrequency hybrid coupler (HYB1), a second in quadrature intermediate frequency hybrid coupler (HYB2), two appropriate duplexer filters (FA, FB), two low-pass filters (FB1, FB2), two matching circuits (R1, R2), and two decoupling circuits (DCB1, DCB2).

公开(公告)号：EP0322612A2

公开(公告)日：1989-07-05

申请号：EP88120535.5

申请日：1988-12-08

申请人： SIEMENS TELECOMUNICAZIONI S.P.A.

发明人： Bonato, Paolo

IPC分类号： H03D9/06

CPC分类号： H03D9/0633 ,  H03B19/18 ,  H03B2200/0032 ,  H03D2200/0037 ,  H03D2200/0082

摘要： An image suppression harmonic frequency converter capable of operating in any microwave range (up to and including the Ka range) is described.
Frequency conversion is obtained by making use of a local frequency (flo) which is half that of a conventional converter. In particular, the radiofrequency reception signal is converted into an intermediate frequency signal with suppression of the converted image band. Similarly, the intermediate frequency signal (fi) to be transmitted is converted into a single side band radiofrequency transmission signal (fs).
The converter comprises two harmonic mixers (M1, M2), a first in quadrature radiofrequency hybrid coupler (HYB1), a second in quadrature intermediate frequency hybrid coupler (HYB2), two appropriate duplexer filters (FA, FB), two low-pass filters (FB1, FB2), two matching circuits (R1, R2), and two decoupling circuits (DCB1, DCB2).

摘要翻译： 描述了能够在任何微波范围（直到并包括Ka范围）运行的图像抑制谐波变频器。 通过利用传统转换器的一半的本地频率（flo）来获得频率转换。 特别地，射频接收信号被转换成具有抑制转换后的图像频带的中频信号。 类似地，要发送的中频信号（fi）被转换成单个边带射频信号（fs）。 该转换器包括两个谐波混频器（M1，M2），第一个正交射频混合耦合器（HYB1），第二个正交中频混合耦合器（HYB2），两个适当的双工器滤波器（FA，FB），两个低通滤波器 （FB1，FB2），两个匹配电路（R1，R2）和两个去耦电路（DCB1，DCB2）。