Built-in antenna

Details Built-in antenna Built-in antenna

1999-10-18

2001-01-02

Wong, Don (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S906000

Utility Patent

active

06169521

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to a built-in antenna to be mounted in a case for a portable radio device, in particular, it relates to that capable of providing a necessary contact without having a high elastic modulus in the metal of the tip part of the built-in antenna, utilizing an inclined part provided in the case.
Conventionally, configurations shown in
FIGS. 7 and 8
have been adopted for contacting a feeder part of a built-in antenna and a printed board. That is, in a first conventional configuration shown in
FIG. 7
, a feeder part of a built-in antenna
21
bonded with a lower case
22
and a printed board
24
are contacted by a pin connector
23
provided in the printed board
24
.
In a second conventional configuration shown in
FIG. 8
, a feeder part of a built-in antenna
31
bonded with a lower case
32
and a printed board
33
are contacted according to the tip part of the built-in antenna
31
having a spring property so as to allow the contact with the printed board
33
.
There is a problem in that a metal with a high elastic modulus needs to be used at a portion of the feeder part comprising the built-in antenna so as to contact with, for example, a pin connector provided in a printed board as well as the cost is increased for the need of mounting the pin connector to the printed board.
In the first conventional configuration shown in
FIG. 7
, a problem is involved in that the pin connector needs to be provided in the printed board so that the cost is increased for mounting the pin connector on the printed board.
Moreover, in the second conventional configuration shown in
FIG. 8
, a problem is involved in that a metal comprising the tip part to serve as the feeder part of the built-in antenna needs to have a high elastic modulus for contacting with the printed board with a predetermined pressure.
SUMMARY OF THE INVENTION
Accordingly, an object of the invention is to provide a built-in antenna with a simple configuration without the need of mounting a special part in a printed board for contact nor the need of having a high elastic modulus in the metal comprising the tip part of the built-in antenna at a low cost.
In order to solve the problems, the invention is a built-in antenna comprising a feeder part to be mounted in a case for a portable radio device for contacting with a land of a printed board, wherein the case is provided with an inclined part, with an elastic member having a rectangular cross-section placed on a V-shaped trough provided at the peak of the inclined part, and the feeder part is disposed on a ridge part of the elastic member having the rectangular cross-section.


REFERENCES:
patent: 5258892 (1993-11-01), Stanton et al.
patent: 5874920 (1999-02-01), Araki et al.
patent: 5986608 (1999-11-01), Korisch et al.
patent: 764 997 A1 (1997-03-01), None

Affiliated with

Also associated with

Rating

Built-in antenna does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Built-in antenna, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Built-in antenna will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2496912