KR20080089658A - An antenna arrangement - Google Patents
An antenna arrangement Download PDFInfo
- Publication number
- KR20080089658A KR20080089658A KR1020087020506A KR20087020506A KR20080089658A KR 20080089658 A KR20080089658 A KR 20080089658A KR 1020087020506 A KR1020087020506 A KR 1020087020506A KR 20087020506 A KR20087020506 A KR 20087020506A KR 20080089658 A KR20080089658 A KR 20080089658A
- Authority
- KR
- South Korea
- Prior art keywords
- antenna
- switching mechanism
- electrical configuration
- antenna element
- impedance matching
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
- H01Q15/002—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective said selective devices being reconfigurable or tunable, e.g. using switches or diodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/335—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
Abstract
A first antenna element; A second antenna element; A connection element for electromagnetically connecting to the first antenna element and the second antenna element; And a switching mechanism coupled to the connecting element for switching between the first electrical configuration and the second electrical configuration, wherein the connecting element has a first impedance if the switching mechanism has a first electrical configuration, the switching mechanism With this second electrical configuration the connecting element has a second impedance.
Description
Embodiments of the present invention relate to an antenna device. In particular, embodiments of the present invention relate to an antenna device for a wireless transceiver device.
Recently, it is desirable to allow radio transceiver devices, such as cellular telephones, to communicate over multiple bands of the radio portion of the electromagnetic spectrum. This need arises because different countries tend to use different frequency bands for cellular networks. For example, US WCDMA operates at 850 MHz, while EU WCDMA operates at 2100 MHz. In addition, different services may be provided in different frequency bands in either country, for example, PCS operates at 1900 MHz, while PCN operates at 1800 MHz. As a result, cellular telephones need a multi-band antenna device that can allow them to communicate over multiple frequency bands of the radio portion of the electromagnetic spectrum.
Multi-band antenna devices increasingly use one or more antenna elements to transmit and receive electromagnetic waves. Recently, each 'active' antenna element in such an antenna device requires its tuning circuit and can therefore operate within the desired set of operating frequency bands. However, each tuning circuit requires space in the radio transmitter receiver device and incurs financial costs associated with it. As a result, multi-band antenna devices are becoming larger and more expensive.
Therefore, it is desirable to provide alternative antenna arrangements.
According to an embodiment of the present invention, there is provided a semiconductor device comprising: a first antenna element; A second antenna element; A connection element for electromagnetically connecting to the first antenna element and the second antenna element; And a switching mechanism coupled to the connection element for switching between a first electrical configuration and a second electrical configuration, wherein the connection element is provided if the switching mechanism has the first electrical configuration. An antenna arrangement is provided, having a first impedance, and wherein the connecting element has a second impedance if the switching mechanism has the second electrical configuration.
If the switching mechanism has the first electrical configuration, the first antenna element may operate in a first operating frequency band and the second antenna element may operate in a second operating frequency band.
If the switching mechanism has the second electrical configuration, the first antenna element may operate in a second operating frequency band, and the second antenna element may operate in a fourth operating frequency band.
The switching mechanism includes a first impedance matching circuit, a second impedance matching circuit and a switch. The switch may be for connecting the connection element to the first impedance matching circuit or the second impedance matching circuit.
If the switch connects the first impedance matching circuit to the connection element, the switching mechanism may have the first electrical configuration.
If the switch connects the second impedance matching circuit to the connection element, the switching mechanism may have the second electrical configuration.
The connecting element can have a first part and a second part. The first portion may be implemented to be electromagnetically connected to the first antenna element. The second portion may be implemented to be electromagnetically connected to the second antenna element.
The antenna device according to the invention may comprise a plurality of antenna elements. The connection element may be implemented to be electromagnetically connected to each of the plurality of antennas.
If the switching mechanism has the first electrical configuration, the plurality of antenna elements may operate in a first set of operating frequency bands.
If the switching mechanism has the second electrical configuration, the plurality of antenna elements may operate in a second set of operating frequency bands.
Each antenna element may be connected to a feed through a feed point. Each antenna element may be connected to a ground plane through a ground point.
According to another embodiment of the present invention, there is provided a tuning device for tuning at least two operating frequency bands, the tuning device comprising: a connecting element for electromagnetically connecting to a first antenna element and a second antenna element; And a switching mechanism coupled to the connection element for switching between a first electrical configuration and a second electrical configuration, wherein if the switching mechanism has the first electrical configuration, the connection element has a first impedance and the switching If the mechanism has said second electrical configuration, said connecting element has a second impedance.
According to another embodiment of the invention, a module is provided comprising an antenna device as described above.
According to another embodiment of the present invention, there is provided a module comprising a tuning device as described above.
According to another embodiment of the present invention, there is provided a portable electronic device comprising the antenna device as described above.
According to another embodiment of the present invention, there is provided a portable electronic device including the tuning device as described above.
For a better understanding of the invention, the following accompanying drawings will be referred to by way of example.
1 shows a conceptual block diagram of a wireless transceiver device including an antenna device.
2 shows a conceptual block diagram of an antenna device according to a first embodiment of the present invention.
3 shows a conceptual view from above of an antenna device according to a second embodiment of the present invention.
4 illustrates a conceptual perspective view of the antenna device described in FIG. 3.
5 shows a conceptual block diagram of a switching mechanism according to an embodiment of the present invention.
6A shows a graph of the first and third operating frequency bands of the
6B shows a graph of the second and fourth operating frequency bands of the
7 shows a conceptual block diagram of a switching mechanism according to another embodiment of the present invention.
8 shows a conceptual block diagram of a switching mechanism according to another embodiment of the present invention.
The figures show a
In more detail, FIG. 1 shows a conceptual block diagram of a
2 shows a very conceptual block diagram of an
Each of the plurality of
As described above, the connecting
The
In one embodiment, if the switching mechanism has a first electrical configuration, the page of the reflection coefficient of the interface may be substantially equal to +1 (connecting
If the
The first and second sets of operating frequency bands may include any of the following operating frequency bands: US-GSM 850 (824-894 MHz),
The connecting
3 to 5 show a more detailed embodiment of the antenna device according to the invention. FIG. 3 shows a conceptual view from above of an
The
To facilitate the description of the structure of the
The
The
The connecting
To aid in visual description of the
5 shows a schematic diagram of a
In the illustrated embodiment, the
The first impedance matching circuit 62 has a higher impedance than the connecting
The second
In the illustrated embodiment, each of the first impedance matching circuit 62 and the second
7 shows a schematic diagram of a
The SPST switch 76 has a first electrical configuration (FIG. 7) in which the SPST switch 76 is opened and the connecting
If the switch 76 has a first electrical configuration, the first
If the switch 76 has a second electrical configuration, the first
The first
8 illustrates a schematic diagram of a
The
The first
The second
The first
The first
Although embodiments of the present invention have been described with reference to various embodiments in the foregoing detailed description, it should be understood that modifications may be made to these embodiments without departing from the spirit of the invention described in the claims. do. For example, at least some of the one or
Although the foregoing detailed description has been provided primarily to describe features of the invention, which are considered to be particularly important, the applicant is entitled to all patents of the foregoing features, which are referred to the drawings and / or shown in the drawings, whether or not specifically emphasized. It should be understood that protection is requested for a possible feature or combination of features.
The present invention can be applied to an antenna device, and in particular, to an antenna device for a radio transceiver device.
Claims (16)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020087020506A KR20080089658A (en) | 2008-08-21 | 2006-02-22 | An antenna arrangement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020087020506A KR20080089658A (en) | 2008-08-21 | 2006-02-22 | An antenna arrangement |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20080089658A true KR20080089658A (en) | 2008-10-07 |
Family
ID=40151130
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020087020506A KR20080089658A (en) | 2008-08-21 | 2006-02-22 | An antenna arrangement |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20080089658A (en) |
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2006
- 2006-02-22 KR KR1020087020506A patent/KR20080089658A/en active IP Right Grant
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