Antenna for nomadic wireless modems
First Claim
Patent Images
1. An apparatus comprising:
- a monopole antenna coupled to a portable communications device;
a plurality of radiating elements mounted on said monopole antenna;
control circuitry to select a subset of said plurality of radiating elements;
switching circuitry to activate said selected radiating element subset; and
a plurality of feeds coupled to the switching circuitry, wherein each of said radiating elements is coupled to one of said feeds.
4 Assignments
0 Petitions
Accused Products
Abstract
An antenna utilizes multiple radiating elements placed at regular interval around a geometric structure. Each of the individual radiating elements are selectably activated in order to narrow the range of transmission and reception for the antenna. Larger antenna gain is achieved by narrowing the radiation pattern and each individual radiating element has significantly more gain than an omni-directional radiator while also reducing the power output requirements of the transmitter.
103 Citations
39 Claims
-
1. An apparatus comprising:
-
a monopole antenna coupled to a portable communications device;
a plurality of radiating elements mounted on said monopole antenna;
control circuitry to select a subset of said plurality of radiating elements;
switching circuitry to activate said selected radiating element subset; and
a plurality of feeds coupled to the switching circuitry, wherein each of said radiating elements is coupled to one of said feeds. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. An antenna, comprising:
-
a monopole antenna coupled to a portable communications device;
a plurality of radiating elements mounted around said rigid structure in a 360°
configuration;
control circuitry configured to select a subset of said plurality of radiating elements;
switching circuitry to activate said selected subset of radiating elements; and
a plurality of feeds coupled to the switching circuitry, wherein each of said radiating elements is coupled to one of said feeds. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
-
-
26. A method comprising:
-
acquiring a base station;
selecting a subset of a plurality of radiating elements by activating one or more feeds, wherein each of the radiating elements is coupled to one of said feeds; and
transmitting a signal from said selected radiating element subset to said acquired first base station. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33)
acquiring another base station;
selecting another subset of said plurality of radiating elements; and
transmitting a signal from said another selected radiating element subset to said acquired second base station.
-
-
32. The method of claim 31, wherein said wireless device is handed-off from said base station to said another second base station.
-
33. The method of claim 26, further comprising:
-
selecting another subset of said plurality of radiating elements when a relative orientation between said antenna and said base station changes; and
transmitting a signal from said another selected radiating element subset to said another base station.
-
-
34. An antenna comprising:
-
a rigid structure;
a plurality of radiating elements mounted to said rigid structure, each radiating element coupled to one of a plurality of feeds;
means for selecting a subset of said plurality of radiating elements; and
means for transmitting a signal from said selected radiating element subset to a first base station. - View Dependent Claims (35, 36, 37, 38, 39)
-
Specification