CA2034157A1 - Frequency linearization circuit for a microwave vco in ridged waveguide - Google Patents

Frequency linearization circuit for a microwave vco in ridged waveguide

Info

Publication number
CA2034157A1
CA2034157A1 CA2034157A CA2034157A CA2034157A1 CA 2034157 A1 CA2034157 A1 CA 2034157A1 CA 2034157 A CA2034157 A CA 2034157A CA 2034157 A CA2034157 A CA 2034157A CA 2034157 A1 CA2034157 A1 CA 2034157A1
Authority
CA
Canada
Prior art keywords
frequency
ridged waveguide
circuit
microwave
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2034157A
Other languages
French (fr)
Other versions
CA2034157C (en
Inventor
John N. Poelker
Ralston S. Robertson, Jr.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raytheon Co
Original Assignee
Hughes Aircraft Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of CA2034157A1 publication Critical patent/CA2034157A1/en
Application granted granted Critical
Publication of CA2034157C publication Critical patent/CA2034157C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B9/00—Generation of oscillations using transit-time effects
    • H03B9/12—Generation of oscillations using transit-time effects using solid state devices, e.g. Gunn-effect devices
    • H03B9/14—Generation of oscillations using transit-time effects using solid state devices, e.g. Gunn-effect devices and elements comprising distributed inductance and capacitance
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B9/00—Generation of oscillations using transit-time effects
    • H03B9/12—Generation of oscillations using transit-time effects using solid state devices, e.g. Gunn-effect devices
    • H03B9/14—Generation of oscillations using transit-time effects using solid state devices, e.g. Gunn-effect devices and elements comprising distributed inductance and capacitance
    • H03B9/141—Generation of oscillations using transit-time effects using solid state devices, e.g. Gunn-effect devices and elements comprising distributed inductance and capacitance and comprising a voltage sensitive element, e.g. varactor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B9/00—Generation of oscillations using transit-time effects
    • H03B9/12—Generation of oscillations using transit-time effects using solid state devices, e.g. Gunn-effect devices
    • H03B2009/126—Generation of oscillations using transit-time effects using solid state devices, e.g. Gunn-effect devices using impact ionization avalanche transit time [IMPATT] diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
    • H03B2201/02—Varying the frequency of the oscillations by electronic means
    • H03B2201/0208—Varying the frequency of the oscillations by electronic means the means being an element with a variable capacitance, e.g. capacitance diode
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B9/00—Generation of oscillations using transit-time effects
    • H03B9/12—Generation of oscillations using transit-time effects using solid state devices, e.g. Gunn-effect devices
    • H03B9/14—Generation of oscillations using transit-time effects using solid state devices, e.g. Gunn-effect devices and elements comprising distributed inductance and capacitance
    • H03B9/145—Generation of oscillations using transit-time effects using solid state devices, e.g. Gunn-effect devices and elements comprising distributed inductance and capacitance the frequency being determined by a cavity resonator, e.g. a hollow waveguide cavity or a coaxial cavity
    • H03B9/146—Generation of oscillations using transit-time effects using solid state devices, e.g. Gunn-effect devices and elements comprising distributed inductance and capacitance the frequency being determined by a cavity resonator, e.g. a hollow waveguide cavity or a coaxial cavity formed by a disc, e.g. a waveguide cap resonator

Abstract

A voltage controlled oscillator having improved frequency linearization charac-teristics. A radial line, (top-hat) disc geometry in conjunction with a varactor diode are disposed in a broadband, ridged waveguide oscillator circuit to produce a frequency linearized voltage controlled oscillator. A negative resistance device is recessed into the ridged waveguide and coaxially coupled via an impedance transformer to the ridged waveguide cavity. The present invention uses a disc resonator in a ridged waveguide to transform the microwave impedance of a non-RF generating element, a varactor diode, to values which provide improved voltage controlled oscillator tuning linearity.
The disc resonator or radial line is located above the varactor diode. The radial line transforms the microwave impedance of the varactor diode to a new value which is then coupled into the ridged waveguide circuit and subsequently to the RF generating diode.
The circuit impedance, which is a function of the varactor voltage, acts to linearize the frequency versus voltage characteristic of the diode. A comparison of the operation of the circuit with and without the radial line/tuning disc shows a 13:1 improvement in the frequency linearity. Experimental results show that the circuit configuration of the pre-sent invention is ideal for use in microwave and millimeter-wave voltage controlled oscillators which require inherent frequency versus voltage linearity. Since the voltage cpmtrolled oscillator frequency linearity is a critical factor in phase locked loop perfor-mance, it is especially suited for use in microwave and millimeter-wave radar or com-munication systems which are frequency agile.
CA002034157A 1990-02-08 1991-01-15 Frequency linearization circuit for a microwave vco in ridged waveguide Expired - Lifetime CA2034157C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/476,991 US5014021A (en) 1990-02-08 1990-02-08 Frequency linearization circuit for a microwave VCO in ridged waveguide
US476,991 1990-02-08

Publications (2)

Publication Number Publication Date
CA2034157A1 true CA2034157A1 (en) 1991-08-09
CA2034157C CA2034157C (en) 1996-02-06

Family

ID=23894060

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002034157A Expired - Lifetime CA2034157C (en) 1990-02-08 1991-01-15 Frequency linearization circuit for a microwave vco in ridged waveguide

Country Status (11)

Country Link
US (1) US5014021A (en)
EP (1) EP0441532B1 (en)
JP (1) JP2530388B2 (en)
KR (1) KR960003621B1 (en)
AU (1) AU623047B2 (en)
CA (1) CA2034157C (en)
DE (1) DE69114873T2 (en)
EG (1) EG22053A (en)
ES (1) ES2079560T3 (en)
IL (1) IL96934A0 (en)
NO (1) NO177517C (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7558556B1 (en) 1999-10-21 2009-07-07 Broadcom Corporation Adaptive radio transceiver with subsampling mixers
US7555263B1 (en) 1999-10-21 2009-06-30 Broadcom Corporation Adaptive radio transceiver
US6961546B1 (en) 1999-10-21 2005-11-01 Broadcom Corporation Adaptive radio transceiver with offset PLL with subsampling mixers
US7113744B1 (en) 1999-10-21 2006-09-26 Broadcom Corporation Adaptive radio transceiver with a power amplifier
US7082293B1 (en) 1999-10-21 2006-07-25 Broadcom Corporation Adaptive radio transceiver with CMOS offset PLL
US8014724B2 (en) 1999-10-21 2011-09-06 Broadcom Corporation System and method for signal limiting
US7299006B1 (en) 1999-10-21 2007-11-20 Broadcom Corporation Adaptive radio transceiver
US6987966B1 (en) * 1999-10-21 2006-01-17 Broadcom Corporation Adaptive radio transceiver with polyphase calibration
US7061445B2 (en) * 2003-08-26 2006-06-13 Andrew Corporation Multiband/multichannel wireless feeder approach

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5926123B2 (en) * 1978-08-29 1984-06-25 富士通株式会社 frequency modulation oscillator
JPS5797709A (en) * 1980-12-10 1982-06-17 Matsushita Electric Ind Co Ltd Solid oscillating device with stabilized frequency
US4429287A (en) * 1981-06-11 1984-01-31 Hughes Aircraft Company Coaxially coupled tunable oscillator using a ridge waveguide
FR2524223A1 (en) * 1982-03-23 1983-09-30 Thomson Csf FREQUENCY-ACCORDABLE OSCILLATOR COMPRISING AN OSCILLATOR DIODE AND A VARIABLE CAPACITY DIODE AND MECHANICAL TUNING METHOD OF THE OSCILLATOR
JPH0247601Y2 (en) * 1986-09-09 1990-12-14
FR2610151A1 (en) * 1987-01-28 1988-07-29 Alcatel Thomson Faisceaux MILLIMETRIC WAVE GENERATOR WITH HIGH STABILITY, AGILE FREQUENCY

Also Published As

Publication number Publication date
JPH04219002A (en) 1992-08-10
CA2034157C (en) 1996-02-06
KR960003621B1 (en) 1996-03-20
EP0441532A3 (en) 1991-12-18
AU6944791A (en) 1991-08-15
NO910481L (en) 1991-08-09
NO177517B (en) 1995-06-19
EG22053A (en) 2002-06-30
US5014021A (en) 1991-05-07
ES2079560T3 (en) 1996-01-16
EP0441532A2 (en) 1991-08-14
DE69114873D1 (en) 1996-01-11
IL96934A0 (en) 1992-03-29
JP2530388B2 (en) 1996-09-04
DE69114873T2 (en) 1996-05-23
NO177517C (en) 1995-09-27
EP0441532B1 (en) 1995-11-29
KR910016107A (en) 1991-09-30
NO910481D0 (en) 1991-02-07
AU623047B2 (en) 1992-04-30

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