AU4607593A - Mobile radiotelephone having asymmetric radiation pattern - Google Patents

Mobile radiotelephone having asymmetric radiation pattern

Info

Publication number
AU4607593A
AU4607593A AU46075/93A AU4607593A AU4607593A AU 4607593 A AU4607593 A AU 4607593A AU 46075/93 A AU46075/93 A AU 46075/93A AU 4607593 A AU4607593 A AU 4607593A AU 4607593 A AU4607593 A AU 4607593A
Authority
AU
Australia
Prior art keywords
user
irradiation
antenna
head
radiation pattern
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.)
Granted
Application number
AU46075/93A
Other versions
AU668748B2 (en
Inventor
Claudio Maggio
Luigi Panico
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.)
Alcatel Lucent NV
Original Assignee
Alcatel NV
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 Alcatel NV filed Critical Alcatel NV
Publication of AU4607593A publication Critical patent/AU4607593A/en
Application granted granted Critical
Publication of AU668748B2 publication Critical patent/AU668748B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • H01Q1/245—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 means for shaping the antenna pattern, e.g. in order to protect user against rf exposure

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)
  • Transceivers (AREA)
  • Transmitters (AREA)
  • Telephone Set Structure (AREA)
  • Adornments (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Medicinal Preparation (AREA)
  • Lock And Its Accessories (AREA)
  • Details Of Aerials (AREA)

Abstract

The present invention relates to a portable transceiver apparatus, in particular a radiomobile telephone set, with low irradiation of the user, comprising a handset and an antenna, having an asymmetric radiation pattern, applied to said handset. Since such apparatuses, when in use, are placed alongside the user's head, a great amount of electromagnetic waves pass through it, in particular with the continuous increase in the transmission frequency and the consequent decrease in the dimension of the antenna the irradiation of the user's head is and will become a serious problem. The aim of the invention is to provide a portable transceiver apparatus so as to minimize the irradiation of its user. By using an antenna having an asymmetric irradiation pattern such as to be extremely limited in the directions of the user's head, a greatly reduced irradiation can be obtained. <IMAGE>
AU46075/93A 1992-09-18 1993-09-03 Mobile radiotelephone having asymmetric radiation pattern Ceased AU668748B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI922146A IT1255602B (en) 1992-09-18 1992-09-18 PORTABLE LOW IRRADIANCE PORTABLE TRANSCEIVER, USING AN ANTENNA WITH ASYMMETRIC IRRADIATION DIAGRAM.
ITMI92A2146 1992-09-18

Publications (2)

Publication Number Publication Date
AU4607593A true AU4607593A (en) 1994-03-24
AU668748B2 AU668748B2 (en) 1996-05-16

Family

ID=11363964

Family Applications (1)

Application Number Title Priority Date Filing Date
AU46075/93A Ceased AU668748B2 (en) 1992-09-18 1993-09-03 Mobile radiotelephone having asymmetric radiation pattern

Country Status (8)

Country Link
EP (1) EP0588271B1 (en)
AT (1) ATE165942T1 (en)
AU (1) AU668748B2 (en)
DE (1) DE69318361T2 (en)
DK (1) DK0588271T3 (en)
ES (1) ES2116378T3 (en)
IT (1) IT1255602B (en)
NZ (1) NZ248624A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6034638A (en) * 1993-05-27 2000-03-07 Griffith University Antennas for use in portable communications devices
NL9302192A (en) * 1993-07-09 1995-02-01 Ericsson Business Mobile Netwo Cordless telephone
DE4326117A1 (en) * 1993-08-04 1995-02-09 Philips Patentverwaltung Two-way radio with an antenna
US5528254A (en) * 1994-05-31 1996-06-18 Motorola, Inc. Antenna and method for forming same
GB9417450D0 (en) 1994-08-25 1994-10-19 Symmetricom Inc An antenna
US6288682B1 (en) 1996-03-14 2001-09-11 Griffith University Directional antenna assembly
FI962091A0 (en) * 1996-05-17 1996-05-17 Heikki Ryhaenen Frequency and frequency of operation
FI104662B (en) * 1997-04-11 2000-04-14 Nokia Mobile Phones Ltd Antenna arrangement for small radio communication devices
SE9702660L (en) * 1997-07-09 1998-12-21 Allgon Ab Hand portable phone with radiation absorbing device
GB2327572B (en) * 1997-07-22 1999-06-02 Matsushita Communication Ind Telephone with multiple antenna configuration
GB9813002D0 (en) 1998-06-16 1998-08-12 Symmetricom Inc An antenna
GB9828768D0 (en) 1998-12-29 1999-02-17 Symmetricom Inc An antenna
GB9902765D0 (en) 1999-02-08 1999-03-31 Symmetricom Inc An antenna
GB9912441D0 (en) 1999-05-27 1999-07-28 Symmetricon Inc An antenna
CN110501614A (en) * 2019-08-31 2019-11-26 广东电网有限责任公司 Induction-motor load transient process calculation method suitable for electromagnetic transient simulation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2702109B2 (en) * 1985-08-29 1998-01-21 日本電気株式会社 Portable radio
US4876552A (en) * 1988-04-27 1989-10-24 Motorola, Inc. Internally mounted broadband antenna
US4876709A (en) * 1988-09-08 1989-10-24 Dynascan Corporation Antenna for cordless telephone system
FR2701613B1 (en) * 1993-02-11 1995-03-31 Alcatel Radiotelephone Portable radiotelephone transceiver.

Also Published As

Publication number Publication date
AU668748B2 (en) 1996-05-16
DE69318361T2 (en) 1999-04-01
NZ248624A (en) 1996-01-26
DK0588271T3 (en) 1998-10-07
EP0588271B1 (en) 1998-05-06
ITMI922146A0 (en) 1992-09-18
DE69318361D1 (en) 1998-06-10
IT1255602B (en) 1995-11-09
ITMI922146A1 (en) 1994-03-18
EP0588271A1 (en) 1994-03-23
ES2116378T3 (en) 1998-07-16
ATE165942T1 (en) 1998-05-15

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired