FI901888A - RADIOFREKVENSSKAERM. - Google Patents

RADIOFREKVENSSKAERM. Download PDF

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Publication number
FI901888A
FI901888A FI901888A FI901888A FI901888A FI 901888 A FI901888 A FI 901888A FI 901888 A FI901888 A FI 901888A FI 901888 A FI901888 A FI 901888A FI 901888 A FI901888 A FI 901888A
Authority
FI
Finland
Prior art keywords
circuit board
divider
small signal
power supply
signal part
Prior art date
Application number
FI901888A
Other languages
Finnish (fi)
Other versions
FI88243B (en
FI901888A0 (en
FI88243C (en
Inventor
Ari Leman
Original Assignee
Nokia Mobile Phones Ltd
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 Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Priority to FI901888A priority Critical patent/FI88243C/en
Publication of FI901888A0 publication Critical patent/FI901888A0/en
Publication of FI901888A publication Critical patent/FI901888A/en
Publication of FI88243B publication Critical patent/FI88243B/en
Application granted granted Critical
Publication of FI88243C publication Critical patent/FI88243C/en

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  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Structure Of Receivers (AREA)

Abstract

The invention concerns a radio frequency screen for electronic devices such as radio telephones which contains a small signal part which is to be screened on a circuit board 5 and a power supply part 15. The radio frequency screen consists of two construction elements, the first 1 of which is an approximately straight plate, metal frame or the like which runs parallel to and is the same size as the circuit board of the small signal part. The second construction element 2 consists of a first divider 3 running parallel with the circuit board between the power supply part and the small signal part, which divider continues from its edge 8 in the vicinity of the circuit board 5 as a channel-shaped second divider 4 which is open towards the circuit board, one edge 9 of which lies essentially in the same plane as the corresponding position 10 of the first divider. The first and the second construction elements 1, 2, are both in one piece which is electrically conductive. The power supply part 15 is placed against the adjacent dividers 3, 13 on the side facing away from the small signal part. <IMAGE>
FI901888A 1990-04-12 1990-04-12 RADIOFREKVENSSKAERM FI88243C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI901888A FI88243C (en) 1990-04-12 1990-04-12 RADIOFREKVENSSKAERM

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI901888A FI88243C (en) 1990-04-12 1990-04-12 RADIOFREKVENSSKAERM
FI901888 1990-04-12

Publications (4)

Publication Number Publication Date
FI901888A0 FI901888A0 (en) 1990-04-12
FI901888A true FI901888A (en) 1991-10-13
FI88243B FI88243B (en) 1992-12-31
FI88243C FI88243C (en) 1993-04-13

Family

ID=8530269

Family Applications (1)

Application Number Title Priority Date Filing Date
FI901888A FI88243C (en) 1990-04-12 1990-04-12 RADIOFREKVENSSKAERM

Country Status (1)

Country Link
FI (1) FI88243C (en)

Also Published As

Publication number Publication date
FI88243B (en) 1992-12-31
FI901888A0 (en) 1990-04-12
FI88243C (en) 1993-04-13

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: NOKIA MATKAPUHELIMET OY