Printed multi-band patch antenna
First Claim
1. A communication device for use in a radio communication system, said device comprising:
- a microphone opening for allowing the communication device to receive auditory information from a user;
a speaker opening for allowing the communication device to transmit auditory information to said user;
a keypad; and
a built-in multiple band patch antenna comprising;
a feeding pin;
a ground pin;
a matching bridge, positioned between the feeding pin and ground pin;
a first patch part tuned to a first frequency band, a second patch part connected to said first patch part only by said matching bridge and tuned to a second different frequency band, and at least one slot formed in each of said first and second patch parts.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention provides a miniature, built-in multi-band antenna which is suitable for use in future compact mobile terminals. According to exemplary embodiments, a built-in patch antenna is provided which includes patch elements of different sizes and capable of being tuned to different frequency bands. On each patch element is formed a slot which divides the patch element into sub-parts. Each sub-part of a patch element is structured so as to be resonant at a frequency in the same frequency band to which the patch element is tuned. As a result, a high efficiency, broad band, multi-band, and surface mountable low profile antenna can be realized.
-
Citations
29 Claims
-
1. A communication device for use in a radio communication system, said device comprising:
-
a microphone opening for allowing the communication device to receive auditory information from a user;
a speaker opening for allowing the communication device to transmit auditory information to said user;
a keypad; and
a built-in multiple band patch antenna comprising;
a feeding pin;
a ground pin;
a matching bridge, positioned between the feeding pin and ground pin;
a first patch part tuned to a first frequency band, a second patch part connected to said first patch part only by said matching bridge and tuned to a second different frequency band, and at least one slot formed in each of said first and second patch parts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
a printed circuit board; and
a substrate onto which said built-in multiple band patch antenna is mounted, said substrate is mounted on said printed circuit board.
-
-
12. The communication device of claim 1 wherein sizes of the patch parts are selected to be approximately ¼
- wavelength of the different frequency bands to which the patch parts are to be tuned.
-
13. A communication device for use in a radio communication system, said device comprising:
-
a printed circuit board mounted on a chassis of said communication device;
a substrate attached to said printed circuit board and having a predetermined thickness; and
a patch antenna mounted on said substrate and comprising a plurality of patch parts, each having at least one slot formed therein, which are tuned to different frequency bands;
a matching bridge by which the patch parts are separated;
wherein a first of said plurality of patch parts is tuned to a lower band and a second of said plurality of patch parts is tuned to a higher band; and
wherein said at least one slot separates each patch part into a plurality of sub-parts, the sub-parts for each patch part are resonant at different frequencies within a same frequency band. - View Dependent Claims (14, 15, 16, 17, 18, 19)
-
-
20. An antenna for a radio communication device, said antenna comprising:
-
a plurality of patch parts, each of which is tuned to a different frequency band; and
at least one slot formed on each of said plurality of patch parts for dividing the patch parts into sub-parts, each sub-part of a patch part is resonant at a different frequency within a frequency band to which the patch part is tuned;
a matching bridge by which the patch parts are separated, wherein said antenna is a built-in antenna. - View Dependent Claims (21, 22, 23, 24, 25)
-
-
26. A method for forming a multiple band, patch antenna comprising a patch and a matching bridge, said method comprising the steps of:
-
forming a slot in said patch so that said patch is divided into multiple parts, each patch part is connected to each other only at said matching bridge and each of said multiple parts is of a size so as to be resonant at a different frequency; and
forming at least one slot in each patch part so as to divide each patch part into a plurality of sub-parts, each sub-part of a patch part is resonant at a different frequency within a same frequency band to which the patch part is tuned. - View Dependent Claims (27)
-
-
28. A system for producing a multiple band, patch antenna comprising a patch and a matching bridge, said system comprising:
-
means for forming a slot in said patch so that said patch is divided into multiple parts, each patch part is connected to each other only at said matching bridge and each of said multiple parts is of a size so as to be resonant at a different frequency; and
means for forming at least one slot in each patch part so as to divide each patch part into a plurality of sub-parts, each sub-part of a patch part is resonant at a different frequency within a same frequency band to which the patch part is tuned. - View Dependent Claims (29)
-
Specification