Antenna assemblies with printed circuit parasitic antenna elements

Patent metadata

Field	Value
Publication number	US-2023411829-A1
Application number	US-202217807777-A
Country	US
Kind code	A1
Filing date	Jun 20, 2022
Priority date	Jun 20, 2022
Publication date	Dec 21, 2023
Grant date	—

Abstract

In some examples, an antenna assembly includes a driven antenna element to communicate a signal over an antenna feed line, and a printed circuit including an electrically conductive pattern that is placed adjacent the driven antenna element. The printed circuit including the electrically conductive pattern provides a parasitic antenna element for the driven antenna element.

First claim

What is claimed is:

1 . An antenna assembly comprising:
a driven antenna element to communicate a signal over an antenna feed line; and a printed circuit comprising an electrically conductive pattern that is placed adjacent the driven antenna element, the printed circuit comprising the electrically conductive pattern providing a parasitic antenna element for the driven antenna element.

2 . The antenna assembly of claim 1 , further comprising:
an electrically conductive portion of a housing of an electronic device, the electrically conductive portion of the housing providing a further parasitic element for the driven antenna element.

3 . The antenna assembly of claim 2 , further comprising a non-conductive slot adjacent the electrically conductive portion of the housing.

4 . The antenna assembly of claim 3 , wherein the non-conductive slot contains a layer of a non-conductive material inserted into the housing.

5 . The antenna assembly of claim 4 , wherein the non-conductive material is insert molded into an opening in the housing to form the non-conductive slot.

6 . The antenna assembly of claim 4 , wherein the non-conductive material comprises plastic.

7 . The antenna assembly of claim 1 , wherein the printed circuit comprises a flexible printed circuit.

8 . The antenna assembly of claim 1 , wherein the printed circuit comprises a circuit board.

9 . The antenna assembly of claim 1 , wherein the electrically conductive pattern on the printed circuit comprises a metal trace with a plurality of turns.

10 . The antenna assembly of claim 9 , wherein the printed circuit with the electrically conductive pattern is to attach to an inner surface of a housing of an electronic device.

11 . The antenna assembly of claim 10 , further comprising a dielectric adhesive layer to attach the printed circuit with the electrically conductive pattern to the inner surface of the housing.

12 . An electronic device comprising:
a housing defining an inner space; a signal transceiver in the inner space; and an antenna assembly in the inner space, the antenna assembly comprising:
a driven antenna element electrically connected to the signal transceiver, and
a printed circuit comprising an electrically conductive pattern that is placed adjacent the driven antenna element, the printed circuit comprising the electrically conductive pattern providing a parasitic antenna element for the driven antenna element.

13 . The electronic device of claim 12 , wherein the housing comprises an electrically conductive portion next to the antenna assembly, the electrically conductive portion of the housing providing a further parasitic antenna element for the driven antenna element.

14 . The electronic device of claim 13 , wherein the electrically conductive portion of the housing that provides the further parasitic antenna element is defined by a slot inserted with a non-conductive material in the housing, and wherein the slot comprises a turn.

15 . A method of forming an antenna assembly in an electronic device, comprising:
arranging, in an inner space of the electronic device, a driven antenna element to communicate a signal over an antenna feed line; and placing a printed circuit comprising an electrically conductive pattern adjacent the driven antenna element, the printed circuit comprising the electrically conductive pattern providing a parasitic antenna element for the driven antenna element.

Assignees

• Hewlett Packard Development Co

Inventors

• Wei Yung-Chang
• Ma Ching-Hung
• Chen ren-hao
• Wu Kun-Jung

Classifications

• H01Q1/24 Primary

  with receiving set · CPC title

• H01Q1/38

  formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface  H01Q15/142)} · CPC title

• H01Q5/378 Primary

  Combination of fed elements with parasitic elements · CPC title

• H01Q1/243

  with built-in antennas · CPC title

• H01Q13/10

  Resonant slot antennas · CPC title