Switchable planar antenna apparatus for quad-band GSM applications

• US 20070139280A1
• Filed: 02/17/2006
• Published: 06/21/2007
• Est. Priority Date: 12/16/2005
• Status: Abandoned Application

• Current Assignee: Sony Ericsson Mobile Communications USA Incorporated (Sony Group Corp.)
• Original Assignee: Sony Ericsson Mobile Communications USA Incorporated (Sony Group Corp.)
• Inventors: Vance, Scott
• Application Number:
  US11/359,896
• Publication Number:
  US 20070139280A1
• Time in Patent Office: Days
• US Class Current: 343/702
• CPC Class Codes: H01Q 1/242 specially adapted for hand-held use
• CPC Class Codes: H01Q 1/38 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 Class Codes: H01Q 21/30 Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
• CPC Class Codes: H01Q 5/371 Branching current paths
• CPC Class Codes: H01Q 5/378 Combination of fed elements with parasitic elements
• CPC Class Codes: H01Q 5/49 with parasitic elements used for purposes other than for dual-band or multi-band, e.g. imbricated Yagi antennas
• CPC Class Codes: H01Q 9/145 by varying the electrical length

Abstract

An antenna apparatus for a wireless electronic device includes an antenna radiation device that is operable to transmit and/or receive electromagnetic waves in one or more frequency bands concurrently, and an antenna feeding device which is operable to transmit and/or receive electrical data from and/or to the antenna radiation device. Furthermore, the antenna radiation device includes a joint antenna device, wherein the joint antenna device comprises a high-band antenna device and a low-band antenna device and is operable to transmit and/or receive electromagnetic waves in a low- and a high-frequency band concurrently and to switch to different predetermined frequency bands of the high-band antenna device and/or low-band antenna device. Furthermore, the antenna feeding device includes at least three contacts operable for connecting one radio frequency source, at least one ground contact and at least one impedance matching. Favorably this antenna apparatus is operable for quad-band GSM (Global Systems of Mobile Communications) applications.

Claims

1. An antenna apparatus for a wireless electronic device comprising:

an antenna radiation device operable to transmit and/or receive electromagnetic waves in one or more frequency bands concurrently, and

an antenna feeding device operable to transmit and/or receive electrical data from and/or to the antenna radiation device,

wherein the antenna radiation device comprises an joint antenna device,

wherein the joint antenna device comprises

a high-band antenna device and a low-band antenna device and is operable

to transmit and/or receive electromagnetic waves in a low- and a high-frequency band concurrently and to switch to different predetermined frequency bands of the high-band antenna device and/or low-band antenna device,

wherein the antenna feeding device comprises

at least one contact operable for connecting one radio frequency source, at least one ground contact and at least one contact for impedance matching.

2. An antenna apparatus for a wireless electronic device according to claim 1,

wherein the high-band antenna apparatus and low-band antenna apparatus is formed as a branch, respectively.

3. An antenna apparatus for a wireless electronic device according to claim 1,

wherein the joint antenna apparatus is formed as a loop,

wherein at least a part of the loop comprises a meander formed portion.

4. An antenna apparatus for a wireless electronic device according to claim 1,

wherein the joint antenna apparatus is formed as a loop,

wherein the low-band antenna apparatus is formed as a bulk portion and the high-band antenna apparatus as a branch.

5. An antenna apparatus for a wireless electronic device according to claim 4,

wherein the low-band antenna apparatus comprises an appendix operable to improve the impedance matching of the high-band antenna apparatus and low-band antenna apparatus.

6. An antenna apparatus for a wireless electronic device according to one of the above-mentioned claims,

6-1. An antenna apparatus for a wireless electronic device according to one of the above-mentioned claims,

wherein the antenna radiation device comprises a parasitic antenna device operable to couple with the joint antenna device to transmit and/or receive electromagnetic waves in an additional predetermined high-frequency band.

7. An antenna apparatus for a wireless electronic device according to the above-mentioned claims,

wherein the antenna apparatus is operable to transmit and/or receive electromagnetic waves in the frequency bands of the Global System of Mobile Communications (GSM).

8. An antenna apparatus for a wireless electronic device according to claim 7,

wherein the frequency bands comprises at least GSM850, GSM900, GSM1800 and GSM1900.

9. A transmission and/or reception apparatus comprising

an antenna apparatus according to the above-mentioned claims and an antenna feeding circuitry device operable to switch the impedance matching and to send and/or receive electrical data from and/or to the antenna apparatus.

10. A transmission and/or reception apparatus according to claim 9,

wherein the antenna feeding circuitry device comprises

an circuitry contact device operable to form a connection with the antenna contact device,

a radio frequency source device operable to send and/or receive electrical data from and/or to the antenna apparatus,

a ground contact operable to ground electrical devices of the antenna apparatus and/or the antenna feeding circuitry device and

an impedance matching device operable to change the impedance matching of the antenna apparatus and to select a desired frequency band thereby.

11. A transmission and/or reception apparatus according to claim 9,

wherein the impedance matching device comprises

a plurality of impedances, the ground contact and

a switching device operable to connect with the plurality of impedances.

12. A transmission and/or reception apparatus according to claim 10,

wherein the impedance matching device comprises

a plurality of impedances, the ground contact and

a switching device operable to connect with the plurality of impedances.

13. A wireless electronic device comprising a transmission and/or reception apparatus according to claim 9,

operable to execute a diverse number of different electronic tasks and to establish a connection via the transmission and/or reception apparatus to other wireless electronic devices having a transmission and/or reception apparatus.

14. A wireless electronic device comprising a transmission and/or reception apparatus according to claim 10,

operable to execute a diverse number of different electronic tasks and to establish a connection via the transmission and/or reception apparatus to other wireless electronic devices having a transmission and/or reception apparatus.

15. A wireless electronic device comprising a transmission and/or reception apparatus according to claim 11,

operable to execute a diverse number of different electronic tasks and to establish a connection via the transmission and/or reception apparatus to other wireless electronic devices having a transmission and/or reception apparatus.

16. A wireless electronic device comprising a transmission and/or reception apparatus according to claim 12,

operable to execute a diverse number of different electronic tasks and to establish a connection via the transmission and/or reception apparatus to other wireless electronic devices having a transmission and/or reception apparatus.