FI913520A0 - Reaktansbuffrad ramantenn och foerfarande foer framstaellning daerav. - Google Patents

Reaktansbuffrad ramantenn och foerfarande foer framstaellning daerav.

Info

Publication number
FI913520A0
FI913520A0 FI913520A FI913520A FI913520A0 FI 913520 A0 FI913520 A0 FI 913520A0 FI 913520 A FI913520 A FI 913520A FI 913520 A FI913520 A FI 913520A FI 913520 A0 FI913520 A0 FI 913520A0
Authority
FI
Finland
Prior art keywords
reactance
taps
antenna
reaktansbuffrad
ramantenn
Prior art date
Application number
FI913520A
Other languages
English (en)
Inventor
William Tan
Robert Kurcbart
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 FI913520A0 publication Critical patent/FI913520A0/fi

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/02—Collapsible antennas; Retractable antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/273—Adaptation for carrying or wearing by persons or animals

Landscapes

  • Details Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Support Of Aerials (AREA)
  • Aerials With Secondary Devices (AREA)
  • Luminescent Compositions (AREA)
  • Microscoopes, Condenser (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
FI913520A 1989-01-23 1991-07-23 Reaktansbuffrad ramantenn och foerfarande foer framstaellning daerav. FI913520A0 (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US29927689A 1989-01-23 1989-01-23
PCT/US1989/005684 WO1990008404A1 (en) 1989-01-23 1989-12-20 Reactance buffered loop antenna and method for making the same

Publications (1)

Publication Number Publication Date
FI913520A0 true FI913520A0 (fi) 1991-07-23

Family

ID=23154095

Family Applications (1)

Application Number Title Priority Date Filing Date
FI913520A FI913520A0 (fi) 1989-01-23 1991-07-23 Reaktansbuffrad ramantenn och foerfarande foer framstaellning daerav.

Country Status (11)

Country Link
EP (1) EP0454694B1 (fi)
JP (1) JP2588063B2 (fi)
KR (1) KR930008833B1 (fi)
AT (1) ATE121225T1 (fi)
CA (1) CA2004365C (fi)
DE (1) DE68922221T2 (fi)
DK (1) DK136291D0 (fi)
ES (1) ES2070311T3 (fi)
FI (1) FI913520A0 (fi)
MY (1) MY104488A (fi)
WO (1) WO1990008404A1 (fi)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2908248B2 (ja) * 1993-07-16 1999-06-21 日本電気株式会社 腕時計型の選択呼出受信機
GB2280065B (en) * 1993-07-16 1997-05-14 Nec Corp Wristwatch-type selective calling receiver
JP3586929B2 (ja) * 1995-05-10 2004-11-10 カシオ計算機株式会社 携帯無線機器用アンテナおよび携帯無線機器
CN112993534B (zh) * 2019-12-16 2023-04-07 RealMe重庆移动通信有限公司 穿戴式电子设备
DE102022134855A1 (de) 2022-12-27 2024-06-27 microsynetics GmbH Befestigungsband für eine tragbare Computervorrichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57142002A (en) * 1981-02-27 1982-09-02 Toshiba Corp Small-sized loop antenna
US4713808A (en) * 1985-11-27 1987-12-15 A T & E Corporation Watch pager system and communication protocol

Also Published As

Publication number Publication date
KR930008833B1 (ko) 1993-09-15
DE68922221T2 (de) 1995-11-09
ES2070311T3 (es) 1995-06-01
DK136291A (da) 1991-07-16
DE68922221D1 (de) 1995-05-18
WO1990008404A1 (en) 1990-07-26
ATE121225T1 (de) 1995-04-15
EP0454694A4 (en) 1992-06-03
DK136291D0 (da) 1991-07-16
JPH04504491A (ja) 1992-08-06
JP2588063B2 (ja) 1997-03-05
KR910700550A (ko) 1991-03-15
CA2004365A1 (en) 1990-07-23
CA2004365C (en) 1994-05-03
EP0454694A1 (en) 1991-11-06
EP0454694B1 (en) 1995-04-12
MY104488A (en) 1994-04-30

Similar Documents

Publication Publication Date Title
ATE260514T1 (de) Multifrequenzstreifenleitungsantenne und gerät mit einer derartigen antenne
JPS57142002A (en) Small-sized loop antenna
ATE339018T1 (de) Funkkommunikationseinrichtung und eine schlitz- schleifenantenne
SE8900547D0 (sv) Radiofrekvent saendtagaranordning
DE69119275D1 (de) Streifenleitungsantenne für mehrere Frequenzen
ATE258721T1 (de) Koaxiale dielektrische stabantenne
IL72895A0 (en) Inductively coupled multi-section radio frequency field coil for nmr
NO905055L (no) Framgangsmaate og anordning for frekvensstyring for en digital radiomottaker.
GR920300064T1 (en) A metal fibre for reinforcing concrete and equipment for its manufacture
GB9009510D0 (en) Radio frequency distance measurement technique
FI913520A0 (fi) Reaktansbuffrad ramantenn och foerfarande foer framstaellning daerav.
DE69530163D1 (de) Frequenzsynthetisierer für einen VHF-UHF Breitbandempfänger
IL94923A0 (en) Frequency domain integrating resonant superconducting transmission line detector
SE9503758D0 (sv) Magnetlåsning
EP0556398A4 (en) BROADBAND FREQUENCY ALLOCATION TYPE SIGNAL SELECTION DEVICE USING ELECTROMAGNETIC COUPLING.
JPS6427301A (en) High frequency polarizer
EP0534790A3 (en) Waveguide converter for transmitting input radio waves
GB9013762D0 (en) Voltage-controlled oscillator
SE8402435L (sv) Utdragbar slingantenn
FR2632124B1 (fr) Dispositif plan d'emission ou reception d'ondes electromagnetiques tres larges bandes a resonance variable par accord capacitif
ES8601572A1 (es) Mejoras en la construccion de antenas emisoras-receptoras
KR910021347U (ko) 전자레인지의 고주파 분산 장치
周文表 PROPAGATION CONSTANTS AND COUPLING PROPERTIES OF COUPLED TRAPPED IMAGE WAVEGUIDE
HUT49240A (en) Monopol coupling element for producing matched coupling between coaxial waveguide and microwave field
JPS57118276A (en) Fixing device

Legal Events

Date Code Title Description
FD Application lapsed