FREQUENCY SYNTHESIZER CIRCUIT

FREQUENCY SYNTHESIZER CIRCUIT

A frequency synthesizer circuit for a car radar system is disclosed, the circuit comprising: a phase locked loop for providing a frequency chirp at a range of tuning voltages, said phase locked loop comprising: a phase detector and a voltage controlled oscillator, wherein said phase locked loop has...

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Hauptverfasser: Osorio Tamayo Juan Felipe, Saric Tarik
Format: Patent
Sprache:eng
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AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
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creator Osorio Tamayo Juan Felipe
Saric Tarik
description A frequency synthesizer circuit for a car radar system is disclosed, the circuit comprising: a phase locked loop for providing a frequency chirp at a range of tuning voltages, said phase locked loop comprising: a phase detector and a voltage controlled oscillator, wherein said phase locked loop has an open loop gain dependent on the tuning voltage and a gain of the voltage controlled oscillator; a first varactor unit for altering the gain of the voltage controlled oscillator over a first subset range of tuning voltages; and a second varactor unit for altering the gain of the voltage controlled oscillator over a second subset range of tuning voltages, wherein the second subset range of tuning voltages is higher than the first subset range of tuning voltages; such that variations in the open loop gain over the first and second subset range of tuning voltages of the range of tuning voltages are compensated for by the varactor units.
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a first varactor unit for altering the gain of the voltage controlled oscillator over a first subset range of tuning voltages; and a second varactor unit for altering the gain of the voltage controlled oscillator over a second subset range of tuning voltages, wherein the second subset range of tuning voltages is higher than the first subset range of tuning voltages; such that variations in the open loop gain over the first and second subset range of tuning voltages of the range of tuning voltages are compensated for by the varactor units.</description><language>eng</language><subject>AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES ; BASIC ELECTRONIC CIRCUITRY ; ELECTRICITY</subject><creationdate>2016</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20161222&amp;DB=EPODOC&amp;CC=US&amp;NR=2016373122A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20161222&amp;DB=EPODOC&amp;CC=US&amp;NR=2016373122A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Osorio Tamayo Juan Felipe</creatorcontrib><creatorcontrib>Saric Tarik</creatorcontrib><title>FREQUENCY SYNTHESIZER CIRCUIT</title><description>A frequency synthesizer circuit for a car radar system is disclosed, the circuit comprising: a phase locked loop for providing a frequency chirp at a range of tuning voltages, said phase locked loop comprising: a phase detector and a voltage controlled oscillator, wherein said phase locked loop has an open loop gain dependent on the tuning voltage and a gain of the voltage controlled oscillator; a first varactor unit for altering the gain of the voltage controlled oscillator over a first subset range of tuning voltages; and a second varactor unit for altering the gain of the voltage controlled oscillator over a second subset range of tuning voltages, wherein the second subset range of tuning voltages is higher than the first subset range of tuning voltages; such that variations in the open loop gain over the first and second subset range of tuning voltages of the range of tuning voltages are compensated for by the varactor units.</description><subject>AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES</subject><subject>BASIC ELECTRONIC CIRCUITRY</subject><subject>ELECTRICITY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2016</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJB1C3INDHX1c45UCI70C_FwDfaMcg1ScPYMcg71DOFhYE1LzClO5YXS3AzKbq4hzh66qQX58anFBYnJqXmpJfGhwUYGhmbG5saGRkaOhsbEqQIAP-EiWw</recordid><startdate>20161222</startdate><enddate>20161222</enddate><creator>Osorio Tamayo Juan Felipe</creator><creator>Saric Tarik</creator><scope>EVB</scope></search><sort><creationdate>20161222</creationdate><title>FREQUENCY SYNTHESIZER CIRCUIT</title><author>Osorio Tamayo Juan Felipe ; 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a first varactor unit for altering the gain of the voltage controlled oscillator over a first subset range of tuning voltages; and a second varactor unit for altering the gain of the voltage controlled oscillator over a second subset range of tuning voltages, wherein the second subset range of tuning voltages is higher than the first subset range of tuning voltages; such that variations in the open loop gain over the first and second subset range of tuning voltages of the range of tuning voltages are compensated for by the varactor units.</abstract><oa>free_for_read</oa></addata></record>
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subjects AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
title FREQUENCY SYNTHESIZER CIRCUIT
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