Subscriber Identity Module Card with Antenna
A technology of user identity module and antenna module, which is applied to record carriers used in machines, instruments, computer parts, etc., can solve the problems of high cost, scarce quantity, and special ordering of smart phones, so as to increase transmission power and increase The effect of sending and receiving data stability and amplification strength
Active Publication Date: 2017-11-03
巨熊微电子(深圳)有限公司
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Problems solved by technology
[0004] The second type is also equipped with an NFC antenna like a smart phone, but the smart chip is set in the user identity module card, and its disadvantage is that the smart phone needs to be specially ordered
[0005] The third is that both the NFC antenna and the smart chip are built into the smart phone. However, this mobile payment architecture also requires a custom-made smart phone, which is more expensive and scarce than the first and second types above. Promote public use
[0007] However, recently, a SIM card with a built-in NFC antenna and a smart chip has been launched on the market. Although it can be applied to any smart phone on the market, it cannot be used with a mobile phone that already has an NFC antenna.
In addition, since the 13.56MHz NFC antenna is difficult to make on the SIM card, the NFC antenna used in the above-mentioned SIM card can only be used at a frequency of 2.4GHz, or the 13.56MHz NFC antenna can be plugged into a general mobile phone Only on the back shell of the
In terms of practical performance, the transmission rate and power consumption of the NFC antenna are not good, and the metal back of the mobile phone is also easy to block the signal transmission. Usually, an additional signal amplifier is required for NFC signal transmission, which increases the user's needs. cost and inconvenience
Method used
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Embodiment Construction
[0022] Please refer to figure 1 , figure 1 It is a block diagram illustrating a subscriber identity module card with an antenna according to an embodiment of the present invention. The SIM card 100 with antenna includes a substrate 110, a first antenna module 120, a second antenna module 130, an antenna controller 140, a single-wire connection protocol interface 150, a resistive switch circuit 160, a security control Chip 170 and a memory 180 .
[0023] The substrate 110 is formed by stacking multiple layers of conductive layers electrically connected to each other (not shown). The substrate 110 is used as an electronic carrier, which is a known public technology in the field of electronic technology, and will not be repeated here.
[0024] The first antenna module 120 is disposed on the substrate 110 . The first antenna module 120 can be fabricated on the substrate 110 by two-dimensional printed circuit wiring, that is, the first antenna module 120 can be an antenna module...
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The invention provides a subscriber identity module card with an antenna, which includes a substrate, a first antenna module, a second antenna module, an antenna controller, a single wire connection protocol interface (Single Wire Protocol, SWP), a resistive A switch circuit and a safety control chip. The security control chip selectively controls the opening and closing of the single-wire connection protocol interface, a first antenna module and a second antenna module, so that the user identity module card can simultaneously transmit data at frequencies of 13.56MHz and 2.4GHz.
Description
technical field [0001] The invention relates to a subscriber identity module card, and in particular to a subscriber identity module card with an antenna applicable to an NFC mobile phone. Background technique [0002] Mobile payment refers to the use of smart phones for short-distance sensing transaction payments, and in order to achieve mobile payment functions, secure encryption technology and wireless transmission technology must be used. Among them, the security encryption technology is used to encrypt and decrypt personal data, which is usually achieved by a smart chip or a security chip. The wireless transmission technology uses Near Field Communication (NFC) as the main transmission method. [0003] Currently, the known mobile payment architectures in the market can be divided into four types, which are nothing more than a combination of a smart phone, a micro memory card or a Subscriber Identity Module (SIM). The first is that the smart phone has an NFC antenna, a...
Claims
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IPC IPC(8): G06K19/077
Inventor 杨名衡洪庆翔许仁宗
Owner 巨熊微电子(深圳)有限公司