Antenna system

Patent metadata

Field	Value
Publication number	US-2016285159-A1
Application number	US-201514671470-A
Country	US
Kind code	A1
Filing date	Mar 27, 2015
Priority date	Mar 27, 2015
Publication date	Sep 29, 2016
Grant date	—

Abstract

Antenna systems that can include first and second radiators and an electromagnetic coupler disposed adjacent to the first and the second radiators. The radiators can be tunable to one or more frequencies. The electromagnetic coupler can be, for example, an inductive coupler or a capacitive coupler. One or more of the antenna systems can be configured to use carrier aggregation by tuning the first and/or the second radiators. For example, one or more of the antenna systems can be configured to use inter-band aggregation, intra-band contiguous aggregation, and intra-band non-contiguous aggregation.

First claim

What is claimed is:

1 . An antenna system of a communication device, comprising:
a first radiator; a second radiator being spaced from the first radiator; and an electromagnetic coupler disposed adjacent to the first radiator, the second radiator, and the first and the second radiators being separated by a space, the electromagnetic coupler being configured to couple the first and the second radiators to the communication device.

2 . The antenna system of claim 1 ,
wherein the first radiator comprises a first tunable capacitor and a first radiation portion coupled to the first tunable capacitor; and wherein the second radiator comprises a second tunable capacitor and a second radiation portion coupled to the second tunable capacitor.

3 . The antenna system of claim 2 ,
wherein the first radiator further comprises a first inductor, the first radiation portion being coupled to the first tunable capacitor via the first inductor; and wherein the second radiator comprises a second inductor, the second radiation portion being coupled to the second tunable capacitor via the second inductor.

4 . The antenna system of claim 3 , wherein:
a first end of the first radiation portion is floating; a second end of the first radiation portion is coupled to the first tunable capacitor, the first tunable capacitor being coupled to ground via the first tunable capacitor, the second end of the first radiation portion being opposite the first end of the first radiation portion; a first end of the second radiation portion is coupled to the ground; and a second end of the second radiation portion is coupled to the ground via the second tunable capacitor, the second end of the second radiation portion being opposite the first end of the second radiation portion.

5 . The antenna system of claim 2 , wherein:
a first end of the first radiation portion is coupled to ground; a second end of the first radiation portion is coupled to the ground via the first tunable capacitor, the second end of the first radiation portion being opposite the first end of the first radiation portion; a first end of the second radiation portion is coupled to the ground; and a second end of the second radiation portion is coupled to the ground via the second tunable capacitor, the second end of the second radiation portion being opposite the first end of the second radiation portion.

6 . The antenna system of claim 5 , wherein the first end of the first radiation portion is coupled to ground via one or more capacitors, one or more inductors, or a combination thereof.

7 . The antenna system of claim 5 , wherein the second end of the first radiation portion is adjacent to the second end of the second radiation portion, the space formed between the first and the second radiators being defined by the second end of the first radiation portion and the second end of the second radiation portion.

8 . The antenna system of claim 1 , wherein the first radiator has a first length and the second radiator has a second length shorter than the first length.

9 . The antenna system of claim 1 , wherein the electromagnetic coupler is an inductive coupler configured to inductively couple the first and the second radiators to the communication device.

10 . The antenna system of claim 1 , wherein the electromagnetic coupler is a capacitive coupler configured to capacitively couple the first and the second radiators to the communication device.

11 . The antenna system of claim 1 , wherein the first radiator and the second radiator are included in a single antenna having the spaced formed therein.

12 . The antenna system of claim 1 , wherein the first radiator and the second radiator are tunable radiators, the first radiator being tunable to a first resonance and the second radiator being tunable to a second resonance different from the first resonance.

13 . The antenna system of claim 1 , wherein the electromagnetic coupler comprises:
a coupling portion having a first end coupled to ground; a first tunable capacitor coupled between the ground and a second end of the coupling portion; and a second tunable capacitor coupled between a feed and the second end of the coupling portion.

14 . The antenna system of claim 1 , wherein the electromagnetic coupler comprises:
a coupling portion having a first end that is floating; an inductor coupled between a second end of the coupling portion and a feed; and a capacitor coupled between ground and the inductor and the feed.

15 . The antenna system of claim 14 , wherein the capacitor is a tunable capacitor.

16 . An antenna system of a communication device, comprising:
a first radiator; a second radiator being spaced from the first radiator; and an electromagnetic coupler disposed between and spaced from the first radiator and the second radiator, the electromagnetic coupler being configured to couple the first and the second radiators to the communication device.

17 . The antenna system of claim 16 ,
wherein the first radiator comprises a first radiation portion, a first inductor, and a first tunable capacitor connected in series and coupled to ground; and wherein the second radiator comprises a second radiation portion, a second inductor, and a second tunable capacitor connected in series and coupled to the ground.

18 . The antenna system of claim 17 , wherein:
a first end of the first radiation portion is floating and a second end of the first radiation portion that is opposite the first end of the first radiation portion is connected to the first inductor; a first end of the second radiation portion is floating and a second end of the second radiation portion that is opposite the first end of the second radiation portion is connected to the second inductor; and the first end of the first radiation portion is adjacent to the first end of the second radiation portion, the space formed between the first and the second radiators being defined by the first end of the first radiation portion and the first end of the second radiation portion.

19 . The antenna system of claim 16 , wherein the first radiator and the second radiator are tunable radiators, the first radiator being tunable to a first resonance and the second radiator being tunable to a second resonance different from the first resonance.

20 . The antenna system of claim 16 , wherein the electromagnetic coupler comprises:
a coupling portion having a first end that is floating; an inductor coupled between a second end of the coupling portion and a feed; and a capacitor coupled between ground and the inductor and the feed.

21 . An antenna system of a communication device, comprising:
a first tunable radiator including a first radiation portion and a first tunable capacitor, the first radiation portion having a first end coupled to ground via the first tunable capacitor; a second tunable radiator being spaced from the first tunable radiator, the second tunable radiator including a second radiation portion and a second tunable capacitor, wherein the second radiation portion has a first end coupled to the ground via the second tunable capacitor; and an electromagnetic coupler disposed adjacent to the first radiator and the second radiator.

22 . The antenna system of claim 21 , wherein the electromagnetic coupler comprises:
a coupling portion; first and second capacitors connected in series and connected to the coupling portion; and a third capacitor and an indu

Assignees

• Intel Corp

Inventors

• Caporal Del Barrio Samantha
• Bahramzy Pevand
• Olesen Poul
• Bundgaard Peter
• Tatomirescu Alexandru Daniel
• Buskgaard Emil
• Pedersen Gert F
• Svendsen Simon
• Jagielski Ole
• Yanakiev Boyan

Classifications

• H01Q1/50 Primary

  Structural association of antennas with earthing switches, lead-in devices or lightning protectors · CPC title

• H01Q5/314

  using frequency dependent circuits or components, e.g. trap circuits or capacitors · 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

• H01Q1/242 Primary

  specially adapted for hand-held use · CPC title

• H01Q1/36 Primary

  Structural form of radiating elements, e.g. cone, spiral, umbrella; {Particular materials used therewith}(H01Q1/08, H01Q1/14 take precedence) · CPC title