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
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.
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)
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 |
DK0988964T3 (da) * | 1998-09-25 | 2001-11-12 | Sika Ag | Speciel klæbestofforbindelse, som er egnet til let afmontering |
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)
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 |
-
1991
- 1991-10-31 US US07/786,225 patent/US5192924A/en not_active Expired - Lifetime
-
1992
- 1992-09-23 WO PCT/US1992/008068 patent/WO1993009574A1/en active Application Filing
- 1992-09-23 CA CA002098009A patent/CA2098009C/en not_active Expired - Fee Related
- 1992-09-23 DE DE4293793A patent/DE4293793C1/de not_active Expired - Lifetime
- 1992-09-23 HU HU9301905A patent/HUT65958A/hu unknown
- 1992-09-23 JP JP5508393A patent/JPH06504177A/ja active Pending
- 1992-09-23 KR KR1019930701973A patent/KR960008981B1/ko not_active IP Right Cessation
- 1992-09-23 TW TW081107496A patent/TW239906B/zh not_active IP Right Cessation
- 1992-09-23 AU AU26689/92A patent/AU648698B2/en not_active Ceased
- 1992-09-23 BR BR9205557A patent/BR9205557A/pt not_active IP Right Cessation
- 1992-09-23 GB GB9312026A patent/GB2267620B/en not_active Expired - Lifetime
- 1992-10-23 IT ITRM920777A patent/IT1258884B/it active IP Right Grant
- 1992-10-26 FR FR929212752A patent/FR2687868B1/fr not_active Expired - Lifetime
- 1992-10-28 MX MX9206214A patent/MX9206214A/es unknown
Also Published As
Publication number | Publication date |
---|---|
MX9206214A (es) | 1993-04-01 |
FR2687868A1 (fr) | 1993-08-27 |
AU2668992A (en) | 1993-06-07 |
US5192924A (en) | 1993-03-09 |
ITRM920777A1 (it) | 1994-04-23 |
GB2267620A (en) | 1993-12-08 |
BR9205557A (pt) | 1994-04-26 |
KR930703713A (ko) | 1993-11-30 |
CA2098009C (en) | 1997-01-14 |
WO1993009574A1 (en) | 1993-05-13 |
JPH06504177A (ja) | 1994-05-12 |
CA2098009A1 (en) | 1993-05-01 |
TW239906B (it) | 1995-02-01 |
DE4293793C1 (de) | 1996-11-14 |
HUT65958A (en) | 1994-08-29 |
KR960008981B1 (ko) | 1996-07-10 |
AU648698B2 (en) | 1994-04-28 |
ITRM920777A0 (it) | 1992-10-23 |
GB2267620B (en) | 1995-08-30 |
HU9301905D0 (en) | 1993-10-28 |
GB9312026D0 (en) | 1993-08-11 |
FR2687868B1 (fr) | 1994-11-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19961010 |