EP 3631492 A1 20200408 - RADIO-FREQUENCY GENERATING UNIT
Title (en)
RADIO-FREQUENCY GENERATING UNIT
Title (de)
HOCHFREQUENZ-ERZEUGUNGSEINHEIT
Title (fr)
UNITÉ DE PRODUCTION HAUTE FRÉQUENCE
Publication
Application
Priority
- DE 102017111820 A 20170530
- EP 2018059128 W 20180410
Abstract (en)
[origin: WO2018219534A1] The invention relates to a radio-frequency generating unit (11) for an FMCW radar-based fill level measuring device (1) which according to the invention comprises the following components: a clock unit (111) for generating a clock signal (sClock), a digital switch mechanism (114) controlled by the clock signal (sClock) for generating a digital output signal (Sd), and a digital/analogue converter (115) which converts the digital output signal (Sd) of the digital switch mechanism (114) into an analogue radio-frequency signal (SHF). Due to this construction according to the invention, a radio-frequency generating unit (11) for an FMCW-based fill level measurement system can be produced which in particular functions without a voltage-controlled oscillator connected to a sensitive control loop, as is normally required in the prior art. This substantially reduces the circuit complexity, so that the radio-frequency generating unit (11) can be made very compact, if necessary as a single monolithically integrated circuit. With regard to the fill level measurement, the radio-frequency generating unit (11) according to the invention, because of the low-interference signal generation of the radio-frequency generating unit, allows the fill level (L) to be determined more precisely and more reliably.
IPC 8 full level
G01S 7/03 (2006.01); G01F 23/284 (2006.01); G01S 13/88 (2006.01)
CPC (source: EP)
G01S 7/032 (2013.01); G01S 13/88 (2013.01); G01F 23/284 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2018219534 A1 20181206; DE 102017111820 A1 20181206; EP 3631492 A1 20200408
DOCDB simple family (application)
EP 2018059128 W 20180410; DE 102017111820 A 20170530; EP 18717034 A 20180410