Apparatus and method for reducing effect of mobile telephone radiation

• US 20010027115A1
• Filed: 02/02/2001
• Published: 10/04/2001
• Est. Priority Date: 08/05/1998
• Status: Active Grant

• Current Assignee: David Zilberberg, Jacob Gavan
• Original Assignee: David Zilberberg, Jacob Gavan
• Inventors: Zilberberg, David, Gavan, Jacob
• Granted Patent: US 6,505,036 B2
• Time in Patent Office: Days
• US Class Current: 455/575.5
• CPC Class Codes: H01Q 1/245 with means for shaping the antenna pattern, e.g. in order to protect user against rf exposure
• CPC Class Codes: H01Q 1/526 Electromagnetic shields
• CPC Class Codes: H04M 1/0214 Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position combined with translation movement H04M1/0235

Abstract

A compact mobile telephone apparatus comprising a two part fold-over mobile phone wherein one part, the lower part, is a hand set containing a keyboard, microphone, and earphone, and the other upper part, is a cover for said handset pivotally connected thereto, characterized in that said cover contains a monopole antenna extendable through the cover, at the opposite end of the pivotal connection to the handset, to a distance of 8-16 cm. from the earphone when the cover is in the unfolded position, raising the locus of radiation laterally and vertically above the head, thereby significantly reducing radiation to the head and increasing antenna efficiency.

Claims

1. A compact mobile telephone apparatus comprising a two part fold-over mobile phone wherein one part, the lower part, is a hand set containing a keyboard, microphone, and earphone, and the other upper part, is a cover for said handset pivotally connected thereto, characterized in that said cover contains a monopole antenna extendable through the cover, at the opposite end of the pivotal connection to the handset, to a distance of 8-16 cm. from the earphone when the cover is in the unfolded position raising the locus of radiation laterally and vertically above the head, thereby significantly reducing radiation to the head and increasing antenna efficiency.

2. A mobile telephone apparatus as in

claim 1

, wherein the antenna is a λ

/4 monopole antenna and is substantially retractable into the cover.

3. A mobile telephone apparatus as in

claim 1

, wherein a battery is attached to the mobile phone.

4. A mobile telephone apparatus as in

claim 3

, wherein the battery is on the back of the handset.

5. A mobile telephone apparatus as in

claims 1

to

4

, wherein when the phone is in the unfolded position the angle between the handset and cover is about 180°

.

6. A mobile phone apparatus according to

claims 1

to

5

, wherein the radiation level in proximity to said earphone is reduced by at least ten percent.

7. A mobile phone apparatus according to

claims 1

to

5

, wherein the radiation level in proximity to said earphone is reduced by at least twenty percent.

8. A mobile phone apparatus according to

claims 1

to

5

, wherein the radiation level in proximity to said earphone is reduced by at least fifty percent.

9. A mobile phone apparatus according to

claims 1

to

5

, wherein the radiation level in proximity to said earpiece is reduced by at least ninety percent.