Radio frequency antenna array with spacing element
First Claim
1. A wireless device, comprising:
- an antenna array comprising a vertically polarized antenna element and a horizontally polarized antenna element that cooperate to generate a substantially omnidirectional radiation pattern, wherein each of the vertically polarized and horizontally polarized antenna elements comprises a first antenna member and a second antenna member, wherein the horizontally polarized antenna element and the vertically polarized antenna element are mounted on a printed circuit board (PCB) by respective tabs;
a first spacer element, different from the PCB, comprising an upper surface and a lower surface and displaced between the first antenna member and the second antenna member of the horizontally polarized antenna element; and
a second spacer element, different from the PCB, comprising an upper surface and a lower surface and displaced between the first antenna member and the second antenna member of the vertically polarized antenna element,wherein the first antenna member and the second antenna member are connected at a radio frequency (RF) feed point,wherein an antenna transmission line is connected to the radio frequency (RF) feed point, andwherein the first spacer element has a thickness corresponding to a characteristic impedance of the antenna transmission line.
8 Assignments
0 Petitions
Accused Products
Abstract
A spacing member is positioned between a pair of antenna members. The two antenna members may be horizontally polarized or vertically polarized and positioned next to each other to provide an increased gain. The spacing element may be placed between the antenna members and have a thickness corresponding to the characteristic impedance of the antenna transmission line. The characteristic impedance may be determined based on the width of the transmission line. The spacing member may be radio-frequency (RF) transparent and may adhere to either or both of the antenna elements. The spacing member may be implemented as a plastic double sided tape or a uniform piece of plastic having one or more adhesive layers.
394 Citations
8 Claims
-
1. A wireless device, comprising:
-
an antenna array comprising a vertically polarized antenna element and a horizontally polarized antenna element that cooperate to generate a substantially omnidirectional radiation pattern, wherein each of the vertically polarized and horizontally polarized antenna elements comprises a first antenna member and a second antenna member, wherein the horizontally polarized antenna element and the vertically polarized antenna element are mounted on a printed circuit board (PCB) by respective tabs; a first spacer element, different from the PCB, comprising an upper surface and a lower surface and displaced between the first antenna member and the second antenna member of the horizontally polarized antenna element; and a second spacer element, different from the PCB, comprising an upper surface and a lower surface and displaced between the first antenna member and the second antenna member of the vertically polarized antenna element, wherein the first antenna member and the second antenna member are connected at a radio frequency (RF) feed point, wherein an antenna transmission line is connected to the radio frequency (RF) feed point, and wherein the first spacer element has a thickness corresponding to a characteristic impedance of the antenna transmission line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
Specification