Multi-band monopole antennas for mobile communications devices
First Claim
1. An antenna for use in a mobile communication device, comprising:
- an antenna substrate with a front side and a back side;
a first spiral conductor located on the front side of the antenna substrate; and
a second spiral conductor located on the back side of the antenna substrate, wherein the first spiral conductor and the second spiral conductor are electrically connected.
1 Assignment
0 Petitions
Accused Products
Abstract
Antennas for use in mobile communication devices are disclosed. The antennas disclosed can include a substrate with a base, a top, a front side and a back side; a first conductor can be located on the first side of the antenna substrate; and a second conductor can be located on the second side of the antenna substrate. The conductors can have single or multiple branches. If a conductor is a single branch it can, for example, be a spiral conductor or a conducting plate. If a conductor has multiple branches, each branch can be set up to receive a different frequency band. A conductor with multiple branches can have a linear branch and a space-filling or grid dimension branch. A conducting plate can act as a parasitic reflector plane to tune or partially tune the resonant frequency of another conductor. The first and second conductors can be electrically connected.
-
Citations
20 Claims
-
1. An antenna for use in a mobile communication device, comprising:
-
an antenna substrate with a front side and a back side;
a first spiral conductor located on the front side of the antenna substrate; and
a second spiral conductor located on the back side of the antenna substrate, wherein the first spiral conductor and the second spiral conductor are electrically connected. - View Dependent Claims (2, 3, 4, 5)
-
-
6. An antenna for use in a mobile communication device, comprising:
-
an antenna substrate with a base, a top, a front side and a back side;
a first conductor located on the front side of the antenna substrate, said first conductor comprising a dual branched antenna with a space-filling or grid dimension branch and a linear branch; and
a second conductor located on the second side of the antenna substrate, said second conductor comprising a conducting plate. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A multi-band monopole antenna for external use in a mobile communication device, comprising:
-
an antenna substrate with a base, a top, a front side and a back side;
a first conductor located on the front side of the antenna substrate, said first conductor comprising a dual branched antenna with a space-filling or grid dimension branch for receiving frequencies in the GSM900 band and a linear branch for receiving frequencies in the GSM1800 band; and
a second conductor located on the second side of the antenna substrate, said second conductor comprising a conducting plate that is positioned behind the space-filling or grid dimension branch of the dual branched antenna, wherein the first conductor and the second conductor are electrically connected at the top of the antenna substrate through holes in the antenna substrate.
-
Specification