ZA864700B - A wide-band radio transmitter - Google Patents
A wide-band radio transmitterInfo
- Publication number
- ZA864700B ZA864700B ZA864700A ZA864700A ZA864700B ZA 864700 B ZA864700 B ZA 864700B ZA 864700 A ZA864700 A ZA 864700A ZA 864700 A ZA864700 A ZA 864700A ZA 864700 B ZA864700 B ZA 864700B
- Authority
- ZA
- South Africa
- Prior art keywords
- sub
- transmitter
- filters
- filter
- frequency
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0475—Circuits with means for limiting noise, interference or distortion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
- H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
- H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
- H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Conductive Materials (AREA)
- Glass Compositions (AREA)
- Developing Agents For Electrophotography (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3522712 | 1985-06-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA864700B true ZA864700B (en) | 1987-02-25 |
Family
ID=6274148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA864700A ZA864700B (en) | 1985-06-25 | 1986-06-24 | A wide-band radio transmitter |
Country Status (7)
Country | Link |
---|---|
US (1) | US4723306A (xx) |
EP (1) | EP0208182B1 (xx) |
AT (1) | ATE47943T1 (xx) |
DE (1) | DE3666908D1 (xx) |
IN (1) | IN165870B (xx) |
NO (1) | NO168980C (xx) |
ZA (1) | ZA864700B (xx) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5129100A (en) * | 1989-09-05 | 1992-07-07 | General Instrument Corp. | Agile output band pass filter for agile up converter |
FR2666417B1 (fr) * | 1990-08-31 | 1993-03-26 | Tekelec Airtronic Sa | Procede pour controler le fonctionnement d'un systeme comprenant un arrangement de filtre et un dispositif utilisateur tel qu'une antenne relie a ce dernier, et agencement pour la mise en óoeuvre de ce procede. |
GB2251147B (en) * | 1990-10-01 | 1994-10-26 | Motorola Inc | Filter switching circuit |
JP3086512B2 (ja) * | 1990-11-14 | 2000-09-11 | エリクソン−ジーイー モービル コミュニケーションズ ホールディング インコーポレイテッド | 送信機及びその電力増幅回路 |
DE4116126A1 (de) * | 1991-05-17 | 1992-11-19 | Telefunken Systemtechnik | Sendeeinrichtung fuer den frequenz-hopping-betrieb |
FI91819C (fi) * | 1991-11-05 | 1994-08-10 | Nokia Mobile Phones Ltd | Menetelmä kahden eri taajuusalueella toimivan digitaalisen radiopuhelimen taajuuksien muodostamiseksi |
AU660063B2 (en) * | 1992-02-18 | 1995-06-08 | Alcatel N.V. | A system and method for combining multiple transmitters in a multi-channel cellular telephone communication system |
US5369373A (en) * | 1992-10-16 | 1994-11-29 | Unisys Corporation | Comb data generation |
JPH0722971A (ja) * | 1993-07-06 | 1995-01-24 | Mitsubishi Electric Corp | 無線通信機 |
DE59602405D1 (de) * | 1995-09-15 | 1999-08-12 | Siemens Ag | Funkgerät mit mehreren frequenzbereichen |
US6111459A (en) * | 1995-09-29 | 2000-08-29 | Matsushita Electric Industrial Co., Ltd. | Multi mode power amplifier and communication unit |
US5794131A (en) * | 1996-03-19 | 1998-08-11 | Ericsson Inc. | Reducing or eliminating radio transmitter mixer spurious outputs |
US5793309A (en) * | 1996-08-14 | 1998-08-11 | Lockheed Martin Corporation | Short range electromagnetic proximity detection |
US6078794A (en) * | 1997-02-19 | 2000-06-20 | Motorola, Inc. | Impedance matching for a dual band power amplifier |
SE508506C2 (sv) * | 1997-02-25 | 1998-10-12 | Ericsson Telefon Ab L M | Anordning och förfarande vid telekommunikation |
DE19823060C2 (de) * | 1998-05-22 | 2001-02-22 | Ericsson Telefon Ab L M | Leistungsverstärker-Ausgangsschaltung |
JP2004520758A (ja) * | 2001-04-27 | 2004-07-08 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Uhfバンドパスにおけるスイッチ |
US7095454B2 (en) * | 2003-07-30 | 2006-08-22 | Maxim Integrated Products, Inc. | Broadband single conversion tuner integrated circuits |
US7347134B2 (en) * | 2004-09-29 | 2008-03-25 | Kimberly-Clark Worldwide, Inc. | No touch dispenser for sheet material with automatic advance |
US20160304066A1 (en) * | 2015-03-27 | 2016-10-20 | Lippert Components, Inc. | Leveling jack with direct actuation |
US10167178B2 (en) | 2015-03-27 | 2019-01-01 | Lippert Components, Inc. | Leveling jack with direct actuation |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1110784A (en) * | 1964-06-13 | 1968-04-24 | Emi Ltd | Improvements relating to wide band radio transmitters |
US4165493A (en) * | 1978-04-17 | 1979-08-21 | Rockwell International Corporation | Protected amplifier apparatus |
US4234965A (en) * | 1978-06-28 | 1980-11-18 | Motorola, Inc. | Communication tuning system utilizing local oscillator frequency selection for maximum RF filter bandwidth and method thereof |
DE3127566C2 (de) * | 1981-07-11 | 1984-03-08 | Rohde & Schwarz GmbH & Co KG, 8000 München | Antennenanpasseinrichtung für einen nach dem Frequenzsprung-Verfahren arbeitenden Hochfrequenzsender |
DE3203961A1 (de) * | 1982-02-05 | 1983-08-18 | Siemens AG, 1000 Berlin und 8000 München | Elektronischer sende-empfangsumschalter |
US4486722A (en) * | 1982-02-18 | 1984-12-04 | Rockwell International Corporation | Pin diode switched impedance matching network having diode driver circuits transparent to RF potential |
DE3310389A1 (de) * | 1983-03-22 | 1984-10-11 | Siemens AG, 1000 Berlin und 8000 München | Breitbandiger sender fuer kurze elektromagnetische wellen |
-
1986
- 1986-05-01 IN IN344/CAL/86A patent/IN165870B/en unknown
- 1986-05-22 US US06/865,629 patent/US4723306A/en not_active Expired - Fee Related
- 1986-06-20 EP EP86108422A patent/EP0208182B1/de not_active Expired
- 1986-06-20 DE DE8686108422T patent/DE3666908D1/de not_active Expired
- 1986-06-20 AT AT86108422T patent/ATE47943T1/de not_active IP Right Cessation
- 1986-06-23 NO NO862515A patent/NO168980C/no unknown
- 1986-06-24 ZA ZA864700A patent/ZA864700B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
US4723306A (en) | 1988-02-02 |
EP0208182B1 (de) | 1989-11-08 |
NO862515D0 (no) | 1986-06-23 |
ATE47943T1 (de) | 1989-11-15 |
EP0208182A1 (de) | 1987-01-14 |
NO168980B (no) | 1992-01-13 |
NO168980C (no) | 1992-04-22 |
DE3666908D1 (en) | 1989-12-14 |
IN165870B (xx) | 1990-02-03 |
NO862515L (no) | 1986-12-29 |
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