EP0818883A3 - Duplexfilter - Google Patents
Duplexfilter Download PDFInfo
- Publication number
- EP0818883A3 EP0818883A3 EP97304719A EP97304719A EP0818883A3 EP 0818883 A3 EP0818883 A3 EP 0818883A3 EP 97304719 A EP97304719 A EP 97304719A EP 97304719 A EP97304719 A EP 97304719A EP 0818883 A3 EP0818883 A3 EP 0818883A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- stage
- filter stage
- stages
- saw
- 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.)
- Withdrawn
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
- H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Non-Reversible Transmitting Devices (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI962815A FI962815A0 (fi) | 1996-07-11 | 1996-07-11 | Duplex-filter |
FI962815 | 1996-07-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0818883A2 EP0818883A2 (de) | 1998-01-14 |
EP0818883A3 true EP0818883A3 (de) | 1998-09-09 |
Family
ID=8546372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97304719A Withdrawn EP0818883A3 (de) | 1996-07-11 | 1997-06-30 | Duplexfilter |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0818883A3 (de) |
FI (1) | FI962815A0 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11154804A (ja) * | 1997-11-20 | 1999-06-08 | Hitachi Ltd | 高周波回路装置 |
JP3704442B2 (ja) * | 1999-08-26 | 2005-10-12 | 株式会社日立製作所 | 無線端末 |
JP2001345662A (ja) * | 2000-05-31 | 2001-12-14 | Murata Mfg Co Ltd | デュプレクサ及びそれを用いた移動体通信装置 |
JP3889351B2 (ja) | 2002-12-11 | 2007-03-07 | Tdk株式会社 | デュプレクサ |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59108407A (ja) * | 1982-12-14 | 1984-06-22 | Nec Corp | 温度補償型弾性表面波発振器 |
US4509165A (en) * | 1981-12-22 | 1985-04-02 | Nippon Electric Co., Ltd. | Miniaturized antenna duplexer using SAW filter |
EP0614242A1 (de) * | 1993-03-03 | 1994-09-07 | Lk-Products Oy | Elektrisches Filter |
EP0678973A1 (de) * | 1994-04-18 | 1995-10-25 | NEC Corporation | Empfängerschaltung zur Generierung von Zwischenfrequenzsignalen mit einer temperaturschwankungsunabhängigen Frequenzcharakteristik |
-
1996
- 1996-07-11 FI FI962815A patent/FI962815A0/fi unknown
-
1997
- 1997-06-30 EP EP97304719A patent/EP0818883A3/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4509165A (en) * | 1981-12-22 | 1985-04-02 | Nippon Electric Co., Ltd. | Miniaturized antenna duplexer using SAW filter |
JPS59108407A (ja) * | 1982-12-14 | 1984-06-22 | Nec Corp | 温度補償型弾性表面波発振器 |
EP0614242A1 (de) * | 1993-03-03 | 1994-09-07 | Lk-Products Oy | Elektrisches Filter |
EP0678973A1 (de) * | 1994-04-18 | 1995-10-25 | NEC Corporation | Empfängerschaltung zur Generierung von Zwischenfrequenzsignalen mit einer temperaturschwankungsunabhängigen Frequenzcharakteristik |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 008, no. 229 (E - 273) 20 October 1984 (1984-10-20) * |
Also Published As
Publication number | Publication date |
---|---|
EP0818883A2 (de) | 1998-01-14 |
FI962815A0 (fi) | 1996-07-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AKX | Designation fees paid | ||
RBV | Designated contracting states (corrected) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19990310 |