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Communication card and communication device

A communication card and machine technology, applied in the direction of instruments, electrical digital data processing, electrical components, etc., can solve the problems of communication function deterioration, communication card 1102 manufacturing cost increase, damage, etc.

Inactive Publication Date: 2003-12-03
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, when the communication card 1102 is carried as it is in the state installed in the information equipment 1101, the antenna unit 1106 protruding from the frame is in a state of easy contact, which may be damaged, and also hinders the transportation.
[0009] Therefore, in order to keep the protruding part out of the way, it has been studied to reduce the size of the antenna unit 1106 as a part of the card unit 1105 and reduce the protruding part from the housing. In the case where the protruding portion from the housing is reduced, there is a problem that due to electromagnetic coupling between the metal housing of the information device 1101 and the antenna, the characteristics of the antenna will deteriorate and the communication function will deteriorate.
In addition, in general, the communication card 1102 is used interchangeably with a plurality of information devices 1101, and the degree of the above-mentioned electromagnetic coupling between the information device 1101 and the communication card 1102 is different for each information device 1101 used, and such coupling cannot be predicted in advance. to the extent that problem solving becomes difficult
[0010] In addition, in order to prevent the antenna unit 1106 from being easily damaged, the method of firmly connecting the antenna unit 1106 and the card unit 1105 and the problem of using a high-frequency connector so that the antenna unit 1106 can be pulled out have been studied. method, there is the problem that the manufacturing cost of communication card 1102 rises

Method used

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  • Communication card and communication device
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  • Communication card and communication device

Examples

Experimental program
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Embodiment approach 1

[0081] First, a communication card described in claims 1 to 8, 15 to 18, 23 and 24 of the present invention will be described as Embodiment 1 with reference to the drawings.

[0082] In the information equipment having the card slot of the present embodiment, the configuration of the communication card as a card-shaped communication device used in the card slot is as follows: figure 1 As shown in the block diagram of the communication card according to Embodiment 1, it includes an antenna 101 for receiving or transmitting communication waves; An antenna matching device S that performs conjugate matching in a manner; the above-mentioned antenna 101 is configured to be electromagnetically coupled to the metal frame that constitutes the above-mentioned information device through the inner wall of the card slot, and the above-mentioned circuit parameters determined by the antenna matching device S make it possible to transmit The reflected signal from the antenna 101 is detected ...

Embodiment approach 2

[0136] Next, a communication card described in claims 9 to 10 and claims 19 to 20 of the present invention will be described as Embodiment 2 with reference to the drawings.

[0137] In describing the communication card according to Embodiment 2, the same members as those of the above-mentioned communication card A are given the same reference numerals, and the description thereof will be omitted. Since the communication card of the second embodiment differs from the communication card of the first embodiment described above only in the configuration of the variable matching means, the variable matching means 102b of the communication card of the second embodiment will be described below.

[0138] The variable matching device 102b of the communication card in Embodiment 2, such as Figure 9 As shown in the circuit diagram of , its composition includes an arbitrarily long microstrip line 705 (assumed to have a wavelength of 1 / 8 in the figure); 2 varactor diodes 710, 711; generat...

Embodiment approach 3

[0154] Next, a communication card described in claims 11 to 14 and claims 21 to 22 of the present invention will be described as a third embodiment with reference to the drawings.

[0155] In describing the communication card according to Embodiment 3, the same members as those of the above-mentioned communication card A are given the same reference numerals, and the description thereof will be omitted. Since the communication card according to the third embodiment differs from the communication card according to the first embodiment only in the configuration of the variable matching means, the variable matching means 102c of the communication card according to the third embodiment will be described below.

[0156] The variable matching device 102c of the communication card, such as Figure 12 As shown, it is characterized in that two variable phase shifting devices that change the phase amount of the signal transmitted through itself are used, and one of the above variable ph...

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Abstract

A communication card or a communication device comprises an antenna (101) for transmitting / receiving a communication wave, a variable matching unit (102a) having a variable circuit parameter, a directional coupler (103) for extracting a reflected signal fed from the antenna (101), a sensor (110) for measuring the intensity of the reflected signal, a controller (109) for outputting a control signal, an amplifier (104) for amplifying a high-frequency sinal in an RF band, a frequency converter (105) for converting a signal in the IF band to a signal in the RF band and vise versa, a modulator / demodulator (106) for modulating an IF signal with a baseband signal in transmission and demodulating the IF signal to a baseband signal in reception, a baseband processor (107) for processing the baseband signal, and a card interface (108) for communicating data with an information device. The projecting part projecting from the case of a communication device is reduced in size, the antenna characteristics do not degrade, and the antenna portion hardly breaks.

Description

technical field [0001] The present invention relates to a communication card and a communication device, in particular to a communication card and a communication device installed in an information device for wireless information transmission. Background technique [0002] In recent years, interest in personal mobile communications has rapidly increased along with the spread of cellular phones. Correspondingly, it is proposed to install and use a card-shaped communication card in an information device with a card slot such as a notebook computer, a portable information terminal (PDA) and a digital camera (digital camera) that have become popular, and provide a form for this purpose. various communication cards. [0003] Figure 16 A communication card 1102 is composed of a connector unit 1104 , a card unit 1105 and an antenna unit 1106 to show a schematic diagram of a conventional communication card usage. [0004] exist Figure 16 In this example, a communication card 110...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/16H04B1/04H04B1/18
CPCH04B1/0458H04B1/18H03J2200/10H04B1/40
Inventor 小野泰司桐野秀树品部宗博
Owner PANASONIC CORP
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