IT1255602B - PORTABLE LOW IRRADIANCE PORTABLE TRANSCEIVER, USING AN ANTENNA WITH ASYMMETRIC IRRADIATION DIAGRAM. - Google Patents

PORTABLE LOW IRRADIANCE PORTABLE TRANSCEIVER, USING AN ANTENNA WITH ASYMMETRIC IRRADIATION DIAGRAM.

Info

Publication number
IT1255602B
IT1255602B ITMI922146A ITMI922146A IT1255602B IT 1255602 B IT1255602 B IT 1255602B IT MI922146 A ITMI922146 A IT MI922146A IT MI922146 A ITMI922146 A IT MI922146A IT 1255602 B IT1255602 B IT 1255602B
Authority
IT
Italy
Prior art keywords
user
antenna
irradiation
portable
head
Prior art date
Application number
ITMI922146A
Other languages
Italian (it)
Inventor
Luigi Panico
Original Assignee
Alcatel Italia
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 Italia filed Critical Alcatel Italia
Publication of ITMI922146A0 publication Critical patent/ITMI922146A0/en
Priority to ITMI922146A priority Critical patent/IT1255602B/en
Priority to AU46075/93A priority patent/AU668748B2/en
Priority to NZ248624A priority patent/NZ248624A/en
Priority to AT93114643T priority patent/ATE165942T1/en
Priority to EP93114643A priority patent/EP0588271B1/en
Priority to DK93114643T priority patent/DK0588271T3/en
Priority to ES93114643T priority patent/ES2116378T3/en
Priority to DE69318361T priority patent/DE69318361T2/en
Publication of ITMI922146A1 publication Critical patent/ITMI922146A1/en
Application granted granted Critical
Publication of IT1255602B publication Critical patent/IT1255602B/en

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

Abstract

La presente invenzione si riferisce ad un apparecchio ricetrasmettitore portatile, in particolare ad un apparecchio telefonico radiomobile, a bassa irradiazione dell'utente, comprendente un contenitore ed una antenna, avente un diagramma di irradiazione asimmetrico, applicata a detto contenitore.Dato che tali apparecchi, durante il loro impiego da parte di un utente, vengono posti vicino al capo dell'utente stesso, una forte quantità di onde elettromagnetiche lo attraversa; in particolare con il continuo incremento della frequenza di trasmissione ed il conseguente decremento delle dimensioni della antenna l'irradiazione del capo dell'utente è e diventerà un problema molto serio.Scopo della presente invenzione è quello di provvedere un apparecchio ricetrasmettitore portatile tale da minimizzare l'irradiazione del suo utente.Utilizzando una antenna avente un opportuno diagramma di irradiazione asimmetrico, tale da essere estremamente limitato nelle direzioni del capo dell'utente, si può ottenere una forte riduzione dell'irradiazione.The present invention relates to a portable transceiver apparatus, in particular to a mobile radio telephone, with low user irradiation, comprising a container and an antenna, having an asymmetrical irradiation diagram, applied to said container. during their use by a user, they are placed near the user's head, a strong quantity of electromagnetic waves passes through it; in particular, with the continuous increase in the transmission frequency and the consequent decrease in the size of the antenna, the irradiation of the user's head is and will become a very serious problem. The object of the present invention is to provide a portable transceiver device such as to minimize the irradiation of its user. By using an antenna having a suitable asymmetric irradiation diagram, such as to be extremely limited in the user's head directions, a strong reduction in irradiation can be obtained.

ITMI922146A 1992-09-18 1992-09-18 PORTABLE LOW IRRADIANCE PORTABLE TRANSCEIVER, USING AN ANTENNA WITH ASYMMETRIC IRRADIATION DIAGRAM. IT1255602B (en)

Priority Applications (8)

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.
AU46075/93A AU668748B2 (en) 1992-09-18 1993-09-03 Mobile radiotelephone having asymmetric radiation pattern
NZ248624A NZ248624A (en) 1992-09-18 1993-09-09 Radiophone handset: radiation directed away from user's head
EP93114643A EP0588271B1 (en) 1992-09-18 1993-09-11 Portable transceiver apparatus with low irradiation of the user, employing an antenna having an asymmetric radiation pattern
AT93114643T ATE165942T1 (en) 1992-09-18 1993-09-11 PORTABLE RADIO DEVICE WITH LOW RADIATION TO THE USER WITH AN ASYMMETRIC ANTENNA RADIATION DIAGRAM
DK93114643T DK0588271T3 (en) 1992-09-18 1993-09-11 Low radiation portable transmitter / receiving device using an antenna with asymmetric radiation diagram
ES93114643T ES2116378T3 (en) 1992-09-18 1993-09-11 PORTABLE TRANSCEIVER DEVICE WITH LOW IRRADIATION OF THE USER, USING AN ANTENNA WITH AN ASYMMETRICAL RADIATION DIAGRAM.
DE69318361T DE69318361T2 (en) 1992-09-18 1993-09-11 Portable radio with little radiation to the user with an asymmetrical antenna radiation pattern

Applications Claiming Priority (1)

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.

Publications (3)

Publication Number Publication Date
ITMI922146A0 ITMI922146A0 (en) 1992-09-18
ITMI922146A1 ITMI922146A1 (en) 1994-03-18
IT1255602B true IT1255602B (en) 1995-11-09

Family

ID=11363964

Family Applications (1)

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

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
WO1994028595A1 (en) * 1993-05-27 1994-12-08 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
EP0588271B1 (en) 1998-05-06
NZ248624A (en) 1996-01-26
AU4607593A (en) 1994-03-24
ES2116378T3 (en) 1998-07-16
ITMI922146A1 (en) 1994-03-18
ITMI922146A0 (en) 1992-09-18
ATE165942T1 (en) 1998-05-15
AU668748B2 (en) 1996-05-16
EP0588271A1 (en) 1994-03-23
DE69318361D1 (en) 1998-06-10
DK0588271T3 (en) 1998-10-07
DE69318361T2 (en) 1999-04-01

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19980831