Antenna frequency deviation compensating device
A technology of frequency offset and compensation device, which is applied in the direction of telephone structure, telephone communication, communication between multiple stations, etc. It can solve the problems of reduced battery life, inability to accurately compensate frequency offset, increase, etc., and achieve the best performance Effect
Inactive Publication Date: 2013-01-02
INVENTEC APPLIANCES CORP
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the method of increasing the transmission power reduces the battery life of the wireless communication device 10 and increases the Specific Absorption Rate (SAR) value of the electromagnetic wave energy, while the conductive parasitic resonance component 103 is often unable to accurately compensate the frequency offset, making the compensation benefit bad
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0030] In order to have a further understanding of the content of the present invention, a detailed description will be given in conjunction with relevant embodiments and accompanying drawings:
[0031] Please refer to Figure 2 and image 3 , FIG. 2 is a block diagram of an embodiment of the antenna frequency offset compensation device of the present invention, image 3 It is a schematic diagram of an embodiment of the antenna frequency offset compensation device of the present invention. As shown in Figure 2, the antenna frequency offset compensation device 20 is suitable for wireless communication devices 30 such as mobile phones or personal digital assistant mobile phones (PDA Phones). Taking two sets of tuning and matching circuits as an example, the antenna frequency offset compensation device 20 is mainly composed of The antenna assembly 201 , the first tuning and matching circuit 202 , the second tuning and matching circuit 203 and the inductive switching module 204 ar...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an antenna frequency deviation compensating device, which is applicable to a radio communication device and comprises an antenna assembly, a plurality of tunable matching circuits and an induction switching module. The antenna frequency deviation compensating device is automatically switched to different tunable matching circuits and is electrically connected with the antenna assembly by the induction switching module when a human body contacts with an outer cover of the radio communication device so that the antenna assembly can be collocated with the different tunable matching circuits to achieve frequency deviation. The antenna frequency deviation compensating device improves the situation that the reception quality of the radio communication device is reduced because the antenna assembly is influenced by the human body contact.
Description
technical field [0001] The invention relates to an antenna frequency offset compensating device, in particular to a device for compensating the antenna frequency offset caused by human body contact of a wireless communication device by a tuning and matching circuit. Background technique [0002] With the vigorous development of communication technology in recent years, wireless communication devices 10 such as mobile phones have become an indispensable part of communication between people in modern life due to their advantages of high mobility. In order to meet the requirements of high communication quality, the signal reception strength of the antenna 101 of the wireless communication device 10 must be maintained at a certain level, so as to take into account the characteristics of high performance (see figure 1 ). [0003] However, the human body is a good conductor of electromagnetic waves, so when the user holds the wireless communication device 10 and speaks, the human...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/40H04B7/26H04M1/725H04M1/02H04M1/72448H04M1/72454
Inventor 黄麒成郑伟哲
Owner INVENTEC APPLIANCES CORP