Dual band trace antenna for WLAN frequencies in a mobile phone
First Claim
Patent Images
1. A dual band antenna, comprising;
- a circuit board having a plurality of layers;
a first antenna element formed on a first layer and having a ground connection;
a second antenna element formed on a second layer and having a ground connection; and
a common feed circuit connected to the first antenna element and second antenna element.
1 Assignment
0 Petitions
Accused Products
Abstract
An antenna for use in mobile electronic devices at more than one frequency. A circuit board contains a first antenna element at a first layer and a second antenna element at a second layer. The antenna elements have a common feed connection and ground connection. The antenna elements are arranged substantially parallel to each other on their respective layers in the circuit board. The first antenna element has a length that differs from that of the second antenna element to provide each with a different resonant frequency.
98 Citations
27 Claims
-
1. A dual band antenna, comprising;
-
a circuit board having a plurality of layers; a first antenna element formed on a first layer and having a ground connection; a second antenna element formed on a second layer and having a ground connection; and a common feed circuit connected to the first antenna element and second antenna element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A portable radio device, comprising;
-
a circuit board for mounting components and having a plurality of layers; a first antenna element formed on a first layer of the circuit board and having a ground connection; a second antenna element formed on a second layer of the circuit board and having a ground connection; and a common feed circuit connected to the first antenna element and the second antenna element; wherein the first and second antenna elements are positioned-adjacent to an edge of the circuit board. - View Dependent Claims (13, 14, 15, 16, 17)
-
-
18. A method for dual band communication, comprising:
-
positioning a first antenna element on a first layer of a circuit board element substantially at an edge of the first layer of the circuit board, the first antenna element having a ground connection, a feed connection and a first length; positioning a second antenna element on a second layer of a circuit board substantially at an edge of the second layer of the circuit board, the second antenna. positioned substantially parallel to the first antenna element and sharing the ground connection and the feed connection with the first antenna element, the second antenna element having a second length; wherein the first length and the second length are different. - View Dependent Claims (19, 20, 21, 22, 23)
-
-
24. A communications device, comprising;
-
a circuit board for mounting components and having a plurality of layers; a first antenna element formed on a first layer of the circuit board and having a ground connection, a second antenna element formed on a second layer of the circuit board and having a ground connection, and a common feed circuit connected to the first antenna element and the second antenna element, wherein the first and second antenna elements are positioned adjacent to an edge of the circuit board.
-
-
25. A module for a communications device, comprising:
-
a first layer and a second layer; a first antenna element formed on the first layer and having a ground connection, a second antenna element formed on the second layer and having a ground connection, and a common feed circuit connected to the first antenna element and the second antenna element. - View Dependent Claims (26, 27)
-
Specification