KR102013360B1 - Self calibration system and window antenna device having the same - Google Patents
Self calibration system and window antenna device having the same Download PDFInfo
- Publication number
- KR102013360B1 KR102013360B1 KR1020130015993A KR20130015993A KR102013360B1 KR 102013360 B1 KR102013360 B1 KR 102013360B1 KR 1020130015993 A KR1020130015993 A KR 1020130015993A KR 20130015993 A KR20130015993 A KR 20130015993A KR 102013360 B1 KR102013360 B1 KR 102013360B1
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- KR
- South Korea
- Prior art keywords
- reference signal
- decoding
- active matching
- switch
- application processor
- Prior art date
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/1271—Supports; Mounting means for mounting on windscreens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
The window antenna device includes an antenna for receiving an RF signal, a decoding integrated circuit for demodulating information transmitted from the received RF signal, and checking a quality or strength of the RF signal to generate a reference signal, and active matching based on the reference signal. An active matching block for generating a value, an active matching block and an application processor for controlling the decoding integrated circuit, and a switching block connected between the antenna and the decoding integrated circuit to change the path of the reference signal.
Description
The present invention relates to a window antenna device. More specifically, the present invention relates to a self-calibration system and a window antenna device having the same.
In a wireless communication system, a communication channel through which a communication signal is transmitted is a wireless channel. Radio channels are defined above the region of the electromagnetic spectrum. Wireless communication systems do not require a wired connection to establish a communication channel between a transmitting station and a receiving station.
The satellite reception antenna uses an active antenna that requires power supply, and the base station antenna uses a passive antenna.
In general, an active antenna used in a mobile communication system uses an antenna in which an active element such as a transmit / receive amplifier is embedded to improve performance of an existing antenna. However, unlike a passive antenna that does not require a power supply, an active antenna must be supplied with external power. At this time, the active antenna has a problem in that repair or replacement of the antenna is required if a defect occurs due to a change in signal reception performance or quality due to a change in the external environment or a change in the assembly state due to device aging.
An object of the present invention is to provide a self-calibration system capable of performing a self-calibration function for the window antenna device.
Another object of the present invention is to provide a window antenna device having the self-calibration system.
However, the problem to be solved by the present invention is not limited to the above-described problems, and may be variously expanded within a range without departing from the spirit and scope of the present invention.
In order to achieve the object of the present invention, the window antenna apparatus according to the embodiments of the present invention, an antenna for receiving an RF signal, demodulates the information transmitted from the received RF signal, the quality of the RF signal Or a decoding integrated circuit (IC) that checks for strength to generate a reference signal, and an active matching block that generates an active matching value based on the reference signal. And a switching block that is connected between the antenna and the decoding IC to control the active matching block and the decoding IC and changes a path of the reference signal.
In example embodiments, the decoding IC may transmit information about the quality or the strength of the RF signal to the application processor.
In example embodiments, the active matching block may transfer the RF signal to a decoding IC.
According to an embodiment, the application processor may change the path of the switching block to transmit the reference signal from the decoding IC when the quality or the strength of the RF signal transmitted from the decoding IC is less than or equal to a predetermined level. The components of the active matching block may be varied based on the quality of the reference signal received from the active matching block via an antenna.
According to an embodiment, the components of the active matching block may include non-volatile memory, a tunable capacitor, a tunable resistance, and a tunable inductor.
According to an embodiment, the application processor may store an active matching value in the nonvolatile memory when the decoding IC recognizes an optimal sensitivity or an optimal strength of the reference signal.
In example embodiments, the active matching value may be obtained by the application processor varying the variable capacitor, the variable resistor, and the variable inductor.
According to one embodiment, the switching block has a first switch and a second switch, the first switch is connected between the antenna and the second switch, and the second switch is the first switch and the decoding. Can be connected between the ICs.
In order to achieve another object of the present invention, an antenna for receiving an external reference signal according to embodiments of the present invention. A decoding integrated circuit (IC) that demodulates information transmitted in the received external reference signal and checks the quality or strength of the external reference signal, and an active matching block that connects the external reference signal to a decoding IC (active matching block), an application processor for controlling the active matching block and the decoding IC and a switching block connected between the antenna and the decoding IC to change the path of the external reference signal. It may include.
In example embodiments, the antenna may transmit the external reference signal to the active matching block.
In example embodiments, the decoding IC may transmit information about the quality or the strength of the external reference signal and the RF signal to the application processor.
In example embodiments, the active matching block may transfer the external reference signal and the RF signal to the decoding IC.
According to an embodiment, when the quality or strength of the external reference signal is less than or equal to a predetermined level, the application processor may vary a component of the active matching block with respect to the external reference signal received from the active matching block. can do.
According to an embodiment, when the decoding IC recognizes an optimal sensitivity or strength of the external reference signal, the application processor may store an active matching value in a non-volatile memory. Can be.
According to an embodiment, the external reference signal may be transmitted from a base station.
According to one embodiment, the external reference signal may be transmitted from a small reference signal generator.
The self-calibration system according to embodiments of the present invention generates a reference signal by checking the quality or strength of the RF signal, generates an active matching value based on the reference signal, and performs a self-calibration on the reference signal. In addition, the self-calibration function may be provided to the window antenna device.
The window antenna device according to the embodiments of the present invention includes the self-calibration system, thereby reducing the sensitivity or strength of signal reception from a change in the external environment, or overcoming a defect in a change in the assembly state due to device aging. Can be.
However, the effects of the present invention are not limited to the above-mentioned effects, and may be variously expanded within a range without departing from the spirit and scope of the present invention.
1 is a block diagram illustrating a window antenna apparatus according to embodiments of the present invention.
FIG. 2 is a block diagram illustrating a self-calibration system included in the window antenna device of FIG. 1.
FIG. 3 is a diagram illustrating a first path formed by the operation of the first switch and the second switch in the self-calibration system of FIG. 2.
4 is a diagram illustrating a second path formed by the operation of the first switch and the second switch in the self-calibration system of FIG. 2.
5 is a flowchart illustrating a self-calibration method according to embodiments of the present invention.
6 is a block diagram illustrating a window antenna device according to embodiments of the present invention.
7 is a block diagram illustrating a window antenna device according to embodiments of the present invention.
Hereinafter, a window antenna device according to exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the following embodiments, and has ordinary skill in the art. It will be apparent to those skilled in the art that the present invention may be embodied in various other forms without departing from the spirit of the invention.
In this specification, specific structural to functional descriptions are merely illustrated for the purpose of describing embodiments of the present invention, and embodiments of the present invention may be embodied in various forms and are limited to the embodiments described herein. It is not to be understood that the present invention is to be construed as including all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. When a component is described as being "connected" or "contacted" to another component, it is to be understood that it may be directly connected to or in contact with another component, but there may be another component in between. something to do. In addition, when a component is described as being "directly connected" or "directly contacted" with another component, it may be understood that there is no other component in between. Other expressions describing the relationship between the components, such as "between" and "directly between" or "adjacent to" and "directly adjacent to", may be interpreted as well.
The terminology used herein is for the purpose of describing exemplary embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. As used herein, the terms "comprise", "comprise" or "have" are intended to designate that there is a feature, number, step, action, component, part, or combination thereof that is practiced, and that one or the same. It is to be understood that the present invention does not exclude in advance the possibility of the presence or addition of other features, numbers, steps, operations, components, parts, or combinations thereof. Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Does not.
Terms such as first, second, and third may be used to describe various components, but such components are not limited by the terms. The terms are used to distinguish one component from another component. For example, without departing from the scope of the present invention, the first component may be referred to as the second or third component, and similarly, the second or third component may be alternatively named.
1 is a block diagram illustrating a window antenna apparatus according to embodiments of the present invention, FIG. 2 is a block diagram illustrating a self-calibration system provided in the window antenna apparatus of FIG. 1, and FIG. 3 is a self-calibration system of FIG. 2. Is a view showing a first path formed by the operation of the first switch and the second switch, Figure 4 shows a second path formed by the operation of the first switch and the second switch in the self-calibration system of FIG. Drawing.
1 to 4, the
As shown in FIG. 2, the switching blocks 141a and 141b may include a
The
The
The
As such, the self-
5 is a flowchart illustrating a self-calibration method according to embodiments of the present invention.
Referring to FIG. 5, in the self-calibration method of FIG. 5, the application processor monitors the quality or strength of the RF signal (Step S110), and when the quality or the strength of the RF signal falls below a preset level, the application processor performs self-calibration. Can be executed (Step S120). Accordingly, the decoding IC generates and transmits a reference signal, which is received by the active matching block. In addition, the application processor may vary the components of the active matching block to obtain an optimal sensitivity or optimal strength of the reference signal received from the active matching block. When the application processor varies the components of the active matching block, the self-calibration method of FIG. 5 stores the active matching value in a nonvolatile memory after recognizing the optimal sensitivity and the optimal strength of the reference signal from a decoding IC. (Step S130). Thereafter, the self-calibration method of FIG. 5 may end self-calibration (Step S140).
6 is a block diagram illustrating a window antenna device according to embodiments of the present invention.
Referring to FIG. 6, the
The
As shown in FIG. 6, the self-
The switching block may include a first switch and a second switch. Specifically, the first switch may be connected between the
The application processor may be connected to the active matching block and the decoding IC. In one embodiment, the application processor continuously monitors the decoding IC receiving the pilot signal, and causes the first switch and the second switch to cause the second switch to become second when the quality or strength of the pilot signal falls below a preset level. You can provide a path. In addition, the application processor may vary the components of the active matching block based on the pilot signal received from the active matching block, and if the decoding IC recognizes the optimum sensitivity or the optimal strength of the active matching value (active matching value) can be stored in non-volatile memory.
The active matching block may be connected to the
Finally, the application processor may store the active matching value in the nonvolatile memory when the decoding IC recognizes the optimal sensitivity or the optimal strength of the pilot signal.
The decoding IC can be coupled to the active matching block, the application processor and the second switch. In one embodiment, the decoding IC may receive the pilot signal from an active matching block, and deliver the pilot signal to a second switch or an application processor.
7 is a block diagram illustrating a window antenna device according to embodiments of the present invention.
Referring to FIG. 7, the
The small
As shown in FIG. 7, the self-
The switching block may include a first switch and a second switch. Specifically, the first switch may be connected between the
The application processor may be connected to the active matching block and the decoding IC. In one embodiment, the application processor continuously monitors a decoding IC that receives the small reference signal and causes the first switch and the second switch to activate when the quality or strength of the small reference signal falls below a predetermined level. You can provide two paths. In addition, the application processor may vary the components of the active matching block based on the quality of the small reference signal received at the decoding IC via the active matching block, and the optimal sensitivity or optimal of the small reference signal at the decoding IC. Once the strength is recognized, the active matching value can be stored in non-volatile memory.
The active matching block may be connected to the
The decoding IC can be coupled to the active matching block, the application processor and the second switch. In one embodiment, the decoding IC may receive the small reference signal from an active matching block and may deliver the small reference signal to a second switch or application processor.
As mentioned above, although the self-calibration system and the window antenna device for implementing the same according to embodiments of the present invention have been described with reference to the drawings, the above description is illustrative and is not limited to the technical spirit of the present invention. Modifications and variations may be made by those skilled in the art.
The present invention can be applied to any system having a wireless communication device using a window antenna. For example, the present invention can be applied to a notebook, a mobile phone, a smartphone, a PDA, a navigation, a GPS, and the like.
Although the above has been described with reference to exemplary embodiments of the present invention, those skilled in the art may vary the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. It will be understood that modifications and changes can be made.
100: window antenna device
120: antenna
140: self-calibration system
141a: first switch
141b: second switch
142: application processor
143: active matching block
144: decoding IC
300: base station
400: small reference signal generator
Claims (16)
A decoding integrated circuit (IC) that demodulates information transmitted from the received RF signal and checks the quality or strength of the RF signal to generate a reference signal;
An active matching block to generate an active matching value based on the reference signal;
An application processor controlling the active matching block and the decoding IC; And
And a switching block connected between the antenna and the decoding IC to change a path of the reference signal.
And varying a component of the active matching block based on the reference signal received from the active matching block via an antenna.
A decoding integrated circuit (IC) for demodulating information transmitted from the received external reference signal and checking for quality or strength of the external reference signal;
An active matching block for coupling the external reference signal to a decoding IC;
An application processor controlling the active matching block and the decoding IC; And
And a switching block connected between the antenna and the decoding IC to change a path of the external reference signal.
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KR1020130015993A KR102013360B1 (en) | 2013-02-14 | 2013-02-14 | Self calibration system and window antenna device having the same |
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KR1020130015993A KR102013360B1 (en) | 2013-02-14 | 2013-02-14 | Self calibration system and window antenna device having the same |
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KR102013360B1 true KR102013360B1 (en) | 2019-08-23 |
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US20150333779A1 (en) | 2014-05-13 | 2015-11-19 | Intel IP Corporation | Systems and methods for enhancing probability of internal measurements in crowded environments |
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US7072620B2 (en) * | 2003-04-03 | 2006-07-04 | Kyocera Wireless Corp. | System and method for regulating antenna electrical length |
KR101054090B1 (en) * | 2009-11-04 | 2011-08-04 | 인하대학교 산학협력단 | Mean Internal Cyclic Antenna Calibration Method for Array Antenna System |
KR101365462B1 (en) * | 2012-06-26 | 2014-02-20 | 주식회사 기가레인 | Multi-path tunalble matching network and matching method using the same |
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