System and method for a minimized antenna apparatus with selectable elements
First Claim
1. A selectable antenna element apparatus, comprising:
- a substrate having a first side and a second side substantially parallel to the first side;
a plurality of active antenna elements on the first side, each active antenna element configured to be selectively coupled to a communication device to form a first portion of a modified dipole; and
a ground component on the second side, the ground component configured to form a second portion of the modified dipole, each modified dipole having one or more loading structures configured to decrease a footprint and change the resonance of the modified dipole, the modified dipole producing an omnidirectional horizontally polarized radiation pattern with polarization substantially in the plane of the substrate.
14 Assignments
0 Petitions
Accused Products
Abstract
A system and method for a wireless link to a remote receiver includes a communication device for generating RF and an antenna apparatus for transmitting the RF. The antenna apparatus comprises a plurality of substantially coplanar modified dipoles. Each modified dipole provides gain with respect to isotropic and a horizontally polarized directional radiation pattern. Further, each modified dipole has one or more loading structures configured to decrease the footprint (i.e., the physical dimension) of the modified dipole and minimize the size of the antenna apparatus. The modified dipoles may be electrically switched to result in various radiation patterns. With multiple of the plurality of modified dipoles active, the antenna apparatus may form an omnidirectional horizontally polarized radiation pattern. One or more directors may be included to concentrate the radiation pattern. The antenna apparatus may be conformally mounted to a housing containing the communication device and the antenna apparatus.
163 Citations
24 Claims
-
1. A selectable antenna element apparatus, comprising:
-
a substrate having a first side and a second side substantially parallel to the first side; a plurality of active antenna elements on the first side, each active antenna element configured to be selectively coupled to a communication device to form a first portion of a modified dipole; and a ground component on the second side, the ground component configured to form a second portion of the modified dipole, each modified dipole having one or more loading structures configured to decrease a footprint and change the resonance of the modified dipole, the modified dipole producing an omnidirectional horizontally polarized radiation pattern with polarization substantially in the plane of the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A selectable antenna element apparatus comprising
a plurality of substantially coplanar modified dipoles, each modified dipole having one or more loading structures configured to decrease a footprint and change the resonance of the modified dipole, wherein the plurality of modified dipoles are configured to produce an omnidirectional horizontally polarized radiation pattern with polarization substantially m the plane of the coplanar modified dipoles; - and
one or more directors configured to concentrate the radiation pattern of one or more of the modified dipoles. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
- and
-
23. A method for receiving and transmitting a radio frequency signal, comprising:
-
generating a radio frequency signal in a communication device; radiating the radio frequency signal with an antenna apparatus comprising a plurality of modified dipoles, each modified dipole having one or more loading structures configured to decrease a footprint and change the resonance of the modified dipole; coupling two or more of the plurality of modified dipoles to the communication device to result in an omnidirectional horizontally polarized radiation pattern with polarization substantially in the plane of the two or more of the plurality of modified dipoles; and concentrating a radiation pattern of one or more of the modified dipoles with one or more directors. - View Dependent Claims (24)
-
Specification