IT1258884B - Circuito filtrante per ottenere segnali in alta frequenza. - Google Patents

Circuito filtrante per ottenere segnali in alta frequenza.

Info

Publication number
IT1258884B
IT1258884B ITRM920777A ITRM920777A IT1258884B IT 1258884 B IT1258884 B IT 1258884B IT RM920777 A ITRM920777 A IT RM920777A IT RM920777 A ITRM920777 A IT RM920777A IT 1258884 B IT1258884 B IT 1258884B
Authority
IT
Italy
Prior art keywords
filter circuit
inductor
high frequency
frequency signals
obtain high
Prior art date
Application number
ITRM920777A
Other languages
English (en)
Inventor
Darioush Agahi-Kesheh
Duane C Rabe
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of ITRM920777A0 publication Critical patent/ITRM920777A0/it
Publication of ITRM920777A1 publication Critical patent/ITRM920777A1/it
Application granted granted Critical
Publication of IT1258884B publication Critical patent/IT1258884B/it

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0123—Frequency selective two-port networks comprising distributed impedance elements together with lumped impedance elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0115—Frequency selective two-port networks comprising only inductors and capacitors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Filters And Equalizers (AREA)
  • Transmitters (AREA)
  • Networks Using Active Elements (AREA)

Abstract

Oggetto dell'invenzione è un circuito di filtro passa basso (200; 600; 700) per un radiotelefono (950) il quale filtra le componenti armoniche spettrali di un segnale modulato generato dal radiotelefono (950). Il circuito di filtro (200; 600; 700) è costituito da induttori (260, 280; 660, 680; 760, 780) e da condensatori (202, 220, 240; 602, 620, 640; 702, 720, 740) in cui ciascun induttore (260, 280; 660, 680; 760, 780) e ciascun condensatore (202, 220, 240; 602, 620, 640; 702, 720, 740) del filtro (200; 600; 700) è costituito da una porzione ad elementi distribuiti (604, 622, 642, 666, 682; 704-714, 722-736, 742-752, 762, 764, 766, 782, 784, 786) e da una porzione ad elementi discreti (616, 618, 637, 638, 654, 656, 664, 688; 716, 718, 737, 738, 754, 756, 768, 788). Le porzioni ad elementi distribuiti di ciascun induttore e di ciascun condensatore del filtro attenuano le componenti spettrali a frequenza superiore di un segnale applicato ad essi. Le porzioni ad elementi discreti di ciascun induttore e di ciascun condensatore del filtro attenuano le componenti spettrali a frequenza inferiore del segnale applicato ad esse.
ITRM920777A 1991-10-31 1992-10-23 Circuito filtrante per ottenere segnali in alta frequenza. IT1258884B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/786,225 US5192924A (en) 1991-10-31 1991-10-31 Filter circuit for attenuating high frequency signals

Publications (3)

Publication Number Publication Date
ITRM920777A0 ITRM920777A0 (it) 1992-10-23
ITRM920777A1 ITRM920777A1 (it) 1994-04-23
IT1258884B true IT1258884B (it) 1996-03-01

Family

ID=25137962

Family Applications (1)

Application Number Title Priority Date Filing Date
ITRM920777A IT1258884B (it) 1991-10-31 1992-10-23 Circuito filtrante per ottenere segnali in alta frequenza.

Country Status (14)

Country Link
US (1) US5192924A (it)
JP (1) JPH06504177A (it)
KR (1) KR960008981B1 (it)
AU (1) AU648698B2 (it)
BR (1) BR9205557A (it)
CA (1) CA2098009C (it)
DE (1) DE4293793C1 (it)
FR (1) FR2687868B1 (it)
GB (1) GB2267620B (it)
HU (1) HUT65958A (it)
IT (1) IT1258884B (it)
MX (1) MX9206214A (it)
TW (1) TW239906B (it)
WO (1) WO1993009574A1 (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5495217A (en) * 1994-06-30 1996-02-27 Philips Electronics North America Corporation Compact hybrid microwave choke
ATE206354T1 (de) * 1998-09-25 2001-10-15 Sika Ag Spezieller klebstoffverbund geeignet für einfachen ausbau
DE102011120827B4 (de) 2011-12-13 2019-03-21 Andrew Wireless Systems Gmbh Kommunikationsnetzwerk
CN115412043B (zh) * 2022-10-31 2023-01-24 成都科谱达信息技术有限公司 一种提升远端抑制性能的对称集总参数低通滤波器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3065434A (en) * 1959-10-02 1962-11-20 Bird Electronic Corp Filter
DE1917308A1 (de) * 1969-04-03 1970-10-15 Blaupunkt Werke Gmbh Abstimmeinrichtung fuer den UHF-Bereich
JPS5761313A (en) * 1980-09-30 1982-04-13 Matsushita Electric Ind Co Ltd Band-pass filter for ultra-high frequency
GB2112599A (en) * 1981-12-24 1983-07-20 Philips Electronic Associated Bandpass filters

Also Published As

Publication number Publication date
GB2267620B (en) 1995-08-30
US5192924A (en) 1993-03-09
ITRM920777A0 (it) 1992-10-23
GB9312026D0 (en) 1993-08-11
TW239906B (it) 1995-02-01
GB2267620A (en) 1993-12-08
FR2687868A1 (fr) 1993-08-27
HU9301905D0 (en) 1993-10-28
CA2098009C (en) 1997-01-14
AU648698B2 (en) 1994-04-28
CA2098009A1 (en) 1993-05-01
KR960008981B1 (ko) 1996-07-10
FR2687868B1 (fr) 1994-11-18
BR9205557A (pt) 1994-04-26
KR930703713A (ko) 1993-11-30
AU2668992A (en) 1993-06-07
ITRM920777A1 (it) 1994-04-23
DE4293793C1 (de) 1996-11-14
MX9206214A (es) 1993-04-01
JPH06504177A (ja) 1994-05-12
HUT65958A (en) 1994-08-29
WO1993009574A1 (en) 1993-05-13

Similar Documents

Publication Publication Date Title
DE69916660T2 (de) Elektrisch abstimmbare filter mit dielektrischen varaktoren
DE59812496D1 (de) U-Umrichter
EP1455448A4 (en) FILTERING CIRCUIT
EP0253224A3 (en) Circuit arrangement for operating low-pressure discharge lamps
CA2239277A1 (en) Passive element circuit
EP0930695A3 (de) Filteranordnung zur Dämpfung für Umrichter mit geregeltem Spannungszwischenkreis und sinusförmigen Phasenströmen
SE0001505L (sv) Filter
WO2001065893A3 (en) Electronic ballast
EP0325379A3 (en) Value determining method for line filter and its components
US6194840B1 (en) Self-oscillating resonant converter with passive filter regulator
IT1258884B (it) Circuito filtrante per ottenere segnali in alta frequenza.
DE69115814D1 (de) Elektrisches Gerät mit einem Leistungswandler
TWI256769B (en) Noise filter
CA2069649A1 (en) Quality factor improvement for filter applications
US5157362A (en) Narrow band notch filter with extended passband
KR940004956A (ko) 듀티 사이클 제어회로
WO1999001932A1 (en) Mains filter circuit arrangement
EP0442637A3 (en) Circuit arrangement for connecting rf amplifier and supply voltage filter
SU382208A1 (ru) Устройство для снижения гармоник выпрямленного напряжения
US20210216097A1 (en) Clock Generation Circuit
RU2001131610A (ru) Фильтр нижних частот коротковолнового передатчика
JPH02179015A (ja) Ａｃラインフィルタ
MY129226A (en) Radio frequency interference (rfi) filter
SU1119134A1 (ru) Устройство дл сглаживани пульсаций выпр мленного напр жени
JPS56138313A (en) Low-pass filter

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19961010