GB1354710A - Receiving antenna for miniature radio receiver - Google Patents

Receiving antenna for miniature radio receiver

Info

Publication number
GB1354710A
GB1354710A GB4891471A GB4891471A GB1354710A GB 1354710 A GB1354710 A GB 1354710A GB 4891471 A GB4891471 A GB 4891471A GB 4891471 A GB4891471 A GB 4891471A GB 1354710 A GB1354710 A GB 1354710A
Authority
GB
United Kingdom
Prior art keywords
receiver
clip
arms
oct
battery
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.)
Expired
Application number
GB4891471A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Solutions Inc
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 GB1354710A publication Critical patent/GB1354710A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)
  • Structure Of Receivers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Circuits Of Receivers In General (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

1354710 Radio receiving apparatus; aerials MOTOROLA Inc 21 Oct 1971 [30 Oct 1970 4 Oct 1971] 48914/71 Headings H3Q and H4A An aerial for a miniature radio receiver adapted to be carried on a person and having a housing with parallel sides extending vertically in the normal position of the receiver, and with one side therein in proximity to the person, comprises a flat conducting member 16 formed in a U-shaped configuration having first and second elongated substantially parallel arms, 18, 19 respectively, Fig. 2, forming parts of the parallel housing sides and a portion 20 connecting said arms: a reactance network is connected to the ends of the arms 18, 19 opposite to the connecting portion 20 for deriving signals therefrom. In the embodiment a clip 12 is attached to the arm 19 for clipping the receiver to a pocket (Fig 1, not shown): the member 16 forms a cover sliding over the moulded plastic member 14 which houses the receiver, contact being made with the lower ends of the arms 18, 19 being made by means of spring members 22, 23. In one arrangement the clip 22 is earthed and the clip 23 connects to a tap on a variable inductance, one end of which is also earthed: the inductance is shunted by a pair of capacitors connected in series, the common point of which is connected to the base of a transistor in the receiver (Fig. 3, not shown). In an alternative arrangement, the clip 22, Fig. 4, is connected to earth and the clip 23 is connected to a tuning circuit comprising variable inductor 32 in series with capacitor 33. This circuit is shunted by capacitor 35, a diode 36 which prevents overload of the receiver on strong signals and series-connected capacitors 38, 39, the junction between which is connected through choke 44 to battery 45. Battery 45 is connected through switch 48 to terminal 50 to energize the receiver terminal 43 can be used to apply charging current to the battery, and also forms a 50 ohm input to the receiver, for testing purposes.
GB4891471A 1970-10-30 1971-10-21 Receiving antenna for miniature radio receiver Expired GB1354710A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8542970A 1970-10-30 1970-10-30
US00186154A US3736591A (en) 1970-10-30 1971-10-04 Receiving antenna for miniature radio receiver

Publications (1)

Publication Number Publication Date
GB1354710A true GB1354710A (en) 1974-06-05

Family

ID=72138315

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4891471A Expired GB1354710A (en) 1970-10-30 1971-10-21 Receiving antenna for miniature radio receiver

Country Status (7)

Country Link
US (1) US3736591A (en)
JP (1) JPS5126215B1 (en)
AU (1) AU431888B2 (en)
CA (1) CA942392A (en)
DE (2) DE2153827B2 (en)
GB (1) GB1354710A (en)
HK (1) HK68376A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0163454A2 (en) * 1984-05-18 1985-12-04 Nec Corporation Microstrip antenna having unipole antenna
GB2217131A (en) * 1988-03-24 1989-10-18 Kokusai Electric Co Ltd Receiver for personal radio paging service
GB2219454A (en) * 1988-06-06 1989-12-06 Nec Corp Portable radio equipment having a display and aerial

Families Citing this family (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2311861C2 (en) * 1973-03-09 1982-07-01 Gerhard Prof. Dr.-Ing. 8012 Ottobrunn Flachenecker Active receiving antenna with a passive antenna part in the form of a conductor loop
JPS5441192B2 (en) * 1973-08-01 1979-12-07
JPS5142310U (en) * 1974-09-25 1976-03-29
JPS5342543U (en) * 1976-09-17 1978-04-12
JPS583405B2 (en) * 1976-09-24 1983-01-21 日本電気株式会社 Antenna for small radio equipment
JPS5419809U (en) * 1977-07-13 1979-02-08
JPS618644Y2 (en) * 1977-08-26 1986-03-18
FI800865A (en) * 1979-03-21 1980-09-22 Autophon Ag FODRAL FOER TILLFAELLIG FASTHAOLLNING AV EN BAERBAR RADIOAPPARAT OCH RADIOAPPARAT
JPS55163432U (en) * 1979-05-15 1980-11-25
DE3011160A1 (en) * 1980-03-22 1981-10-01 Robert Bosch Gmbh, 7000 Stuttgart ANTENNA
DE3101198A1 (en) * 1981-01-16 1982-09-02 Robert Bosch Gmbh, 7000 Stuttgart Radio receiver which can be attached to the clothing and has a built-in antenna
FR2498819B1 (en) * 1981-01-23 1985-05-31 Thomson Csf SMALL ANTENNA
EP0122485B1 (en) * 1983-03-19 1987-09-02 Nec Corporation Double loop antenna
US4536925A (en) * 1983-10-11 1985-08-27 Motorola, Inc. Belt clip assembly with a controlled failure mode
US4626862A (en) * 1984-08-08 1986-12-02 John Ma Antenna having coaxial driven element with grounded center conductor
US4686499A (en) * 1984-09-28 1987-08-11 Cincinnati Microwave, Inc. Police radar warning receiver with cantilevered PC board structure
US4613989A (en) * 1984-09-28 1986-09-23 Cincinnati Microwave, Inc. Police radar warning receiver
US4679233A (en) * 1985-08-30 1987-07-07 Motorola, Inc. Microphone
US4740794A (en) * 1986-01-03 1988-04-26 Motorola, Inc. Connectorless antenna coupler
US4723305A (en) * 1986-01-03 1988-02-02 Motorola, Inc. Dual band notch antenna for portable radiotelephones
US4725845A (en) * 1986-03-03 1988-02-16 Motorola, Inc. Retractable helical antenna
JPS62262502A (en) * 1986-05-09 1987-11-14 Yuniden Kk Antenna for radio communication equipment
JPH0693635B2 (en) * 1986-12-19 1994-11-16 日本電気株式会社 Small radio
US4821040A (en) * 1986-12-23 1989-04-11 Ball Corporation Circular microstrip vehicular rf antenna
US4835541A (en) * 1986-12-29 1989-05-30 Ball Corporation Near-isotropic low-profile microstrip radiator especially suited for use as a mobile vehicle antenna
US4817196A (en) * 1987-01-02 1989-03-28 Motorola, Inc. Apparatus for tuning the antenna of a miniature personal communications device
US4805232A (en) * 1987-01-15 1989-02-14 Ma John Y Ferrite-core antenna
JPH0650840B2 (en) * 1987-02-27 1994-06-29 日本電気株式会社 Wireless selective calling system
JP2624257B2 (en) * 1987-06-29 1997-06-25 日本電気株式会社 Radio antenna
US4814776A (en) * 1987-09-10 1989-03-21 Motorola, Inc. Optimally grounded small loop antenna
US4894663A (en) * 1987-11-16 1990-01-16 Motorola, Inc. Ultra thin radio housing with integral antenna
JPH01246904A (en) * 1988-03-28 1989-10-02 Kokusai Electric Co Ltd Small-sized antenna
US4940992A (en) * 1988-04-11 1990-07-10 Nguyen Tuan K Balanced low profile hybrid antenna
US4876552A (en) * 1988-04-27 1989-10-24 Motorola, Inc. Internally mounted broadband antenna
US5227804A (en) * 1988-07-05 1993-07-13 Nec Corporation Antenna structure used in portable radio device
US5243356A (en) * 1988-08-05 1993-09-07 Seiko Epson Corporation Antenna circuit and wrist radio instrument
JPH0546113Y2 (en) * 1989-03-20 1993-12-01
WO1990013951A1 (en) * 1989-05-01 1990-11-15 Motorola, Inc. Thin articulated pager
US5300937A (en) * 1989-10-02 1994-04-05 Motorola, Inc. Loop antenna
US5227805A (en) * 1989-10-26 1993-07-13 Motorola, Inc. Antenna loop/battery spring
US5203022A (en) * 1991-03-05 1993-04-13 Motorola, Inc. Clamping assembly for interlocking a radio and battery housing
US5280296A (en) * 1992-04-29 1994-01-18 Motorola, Inc. Antenna system for a wrist carried selective call receiver
US5268699A (en) * 1992-09-24 1993-12-07 Motorola, Inc. Data communication receiver utilizing a loop antenna having a hinged connection
US5485166A (en) * 1993-05-27 1996-01-16 Savi Technology, Inc. Efficient electrically small loop antenna with a planar base element
US5659325A (en) * 1994-12-02 1997-08-19 Harris Corporation Low impedance loop antenna and drive circuitry
DE19504577A1 (en) * 1995-02-11 1996-08-14 Fuba Automotive Gmbh Flat aerial for GHz frequency range for vehicle mobile radio or quasi-stationary aerial
DE19510236A1 (en) * 1995-03-21 1996-09-26 Lindenmeier Heinz Flat antenna with low overall height
US5971552A (en) * 1995-12-08 1999-10-26 Donnelly Corporation Vehicle global positioning system
JPH09232990A (en) * 1996-02-20 1997-09-05 S I I R D Center:Kk Small sized radio equipment
US6052093A (en) * 1996-12-18 2000-04-18 Savi Technology, Inc. Small omni-directional, slot antenna
DE19828122A1 (en) * 1998-06-25 1999-12-30 Fuba Automotive Gmbh Flat antenna, especially for frequencies in GHz range
US6414637B2 (en) * 2000-02-04 2002-07-02 Rangestar Wireless Inc. Dual frequency wideband radiator
US6660948B2 (en) 2001-02-28 2003-12-09 Vip Investments Ltd. Switch matrix
US6727856B1 (en) * 2002-06-06 2004-04-27 Good Technology, Inc. Antenna system for a wireless device
WO2005011051A2 (en) * 2003-07-21 2005-02-03 Ipr Licensing, Inc. Multi-band antenna for wireless applications
US7755506B1 (en) 2003-09-03 2010-07-13 Legrand Home Systems, Inc. Automation and theater control system
US7307542B1 (en) 2003-09-03 2007-12-11 Vantage Controls, Inc. System and method for commissioning addressable lighting systems
US7394451B1 (en) 2003-09-03 2008-07-01 Vantage Controls, Inc. Backlit display with motion sensor
FI20031262A (en) * 2003-09-05 2005-03-06 Filtronic Lk Oy Antenna design for listening to public radio broadcasts with a mobile terminal and mobile terminal
US7778262B2 (en) 2005-09-07 2010-08-17 Vantage Controls, Inc. Radio frequency multiple protocol bridge
JP4772602B2 (en) * 2006-06-29 2011-09-14 京セラ株式会社 Antenna device and portable terminal device equipped with the antenna device
US7215600B1 (en) * 2006-09-12 2007-05-08 Timex Group B.V. Antenna arrangement for an electronic device and an electronic device including same
DE102007036207B4 (en) * 2007-08-02 2010-08-12 Texas Instruments Deutschland Gmbh Large dynamic range ASK demodulator for use in 13 MHz RFID transponders
DE202008011254U1 (en) 2008-08-22 2008-12-24 Delphi Delco Electronics Europe Gmbh Flat antenna of "U" type
US8471768B2 (en) * 2009-12-22 2013-06-25 Nokia Corporation Method and apparatus for an antenna
US9166279B2 (en) 2011-03-07 2015-10-20 Apple Inc. Tunable antenna system with receiver diversity
US9246221B2 (en) * 2011-03-07 2016-01-26 Apple Inc. Tunable loop antennas
US9350069B2 (en) 2012-01-04 2016-05-24 Apple Inc. Antenna with switchable inductor low-band tuning
US9190712B2 (en) 2012-02-03 2015-11-17 Apple Inc. Tunable antenna system
JP5655959B2 (en) * 2012-06-28 2015-01-21 株式会社村田製作所 ANTENNA DEVICE, FEEDING ELEMENT AND COMMUNICATION TERMINAL DEVICE
WO2014003163A1 (en) 2012-06-28 2014-01-03 株式会社村田製作所 Antenna device and communication terminal device
US9065169B2 (en) * 2013-06-25 2015-06-23 University Of New Hampshire High frequency magnetic field antenna
JP6438146B2 (en) 2015-01-29 2018-12-12 サトーホールディングス株式会社 RFID infinite antenna

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO55309A (en) *
US2828413A (en) * 1956-06-21 1958-03-25 Bell Telephone Labor Inc Self-contained antenna-radio system in which a split conductive container forms a dipole antenna
JPS438648Y1 (en) * 1965-03-20 1968-04-17
US3573628A (en) * 1968-07-15 1971-04-06 Motorola Inc Antenna for miniature radio receiver including portions of receiver housing and chassis
US3702604A (en) * 1971-05-20 1972-11-14 Silicon Technology Work mounting mechanism in slicing machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0163454A2 (en) * 1984-05-18 1985-12-04 Nec Corporation Microstrip antenna having unipole antenna
EP0163454A3 (en) * 1984-05-18 1989-05-31 Nec Corporation Microstrip antenna having unipole antenna
GB2217131A (en) * 1988-03-24 1989-10-18 Kokusai Electric Co Ltd Receiver for personal radio paging service
GB2217131B (en) * 1988-03-24 1992-06-17 Kokusai Electric Co Ltd Receiver for personal radio paging service
GB2219454A (en) * 1988-06-06 1989-12-06 Nec Corp Portable radio equipment having a display and aerial
GB2219454B (en) * 1988-06-06 1992-11-18 Nec Corp Portable radio equipment having a display
AU632485B2 (en) * 1988-06-06 1993-01-07 Nec Corporation Portable radio equipment having a display

Also Published As

Publication number Publication date
JPS5126215B1 (en) 1976-08-05
AU3494971A (en) 1973-02-08
JPS479165A (en) 1972-05-12
US3736591A (en) 1973-05-29
HK68376A (en) 1976-11-05
DE7140871U (en) 1972-03-02
DE2153827A1 (en) 1972-08-03
CA942392A (en) 1974-02-19
DE2153827B2 (en) 1977-12-15
AU431888B2 (en) 1973-02-08

Similar Documents

Publication Publication Date Title
GB1354710A (en) Receiving antenna for miniature radio receiver
US3821647A (en) Radio receiving means
SE9200554L (en) CONTACT SOLUTION, DIGITAL POWER TRANSMISSION AND POWER RECEPTION SYSTEM IN A RADIO PHONE
DE68923598D1 (en) Extendable antenna for portable, cellular radiotelephones.
KR890001218A (en) Antenna for Portable Wireless Communication Device
EP0984510A4 (en) Antenna device and mobile communication unit
GB464443A (en) Improvements in or relating to aerial systems
FR2254915A1 (en) Combined radio transmitter-receiver - has contactless switch connecting dual purpose antenna
GB803186A (en) Negative-impedance transistor oscillator
GB921950A (en) Broad band loop antenna
CA1276992C (en) Electronically controlled matching circuit
US3009057A (en) Indicating device for alignment of radio transmitters
US3360730A (en) Apparatus providing a-m radio reception of f-m
US2632105A (en) Indoor television receiving antenna
JP2579095B2 (en) Antenna device for mobile communication equipment
GB1338305A (en) Conductor testing or identifying method for telecommunication cable conductors
US1622335A (en) Babio beceitek attachment fob telephomes
GB1008210A (en) Improvements in and connected with television receiving antennae
ES370990A1 (en) Circuit arrangement for regulating the transmission and reception reference equivalent of a subscriber station in a telephone system
GB724926A (en) Improvements in or relating to variable tuning circuits
KR920001901Y1 (en) Wrist belt type antenna of small radio communication apparatus
GB346299A (en) Improvements in or relating to alternating current frequency selective arrangements
GB768088A (en) Improvements in or relating to sound reproducing or recording apparatus
ES244572A3 (en) Single antenna circuit (Machine-translation by Google Translate, not legally binding)
GB906636A (en) Improvements in wireless aerials

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee