Testing device and method for MicroSD wireless local area network card
A wireless network card and test device technology, applied in the field of communication, can solve the problems of system impedance influence, high integration, small MicroSD card, etc., and achieve the effect of improving test accuracy
Inactive Publication Date: 2011-10-05
LZEAL INFORMATION TECH +1
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- Application Information
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Problems solved by technology
However, due to the small size and high integration of the MicroSD card, there is not enough space to place the test socket, so the test socket cannot be used to isolate the antenna for testing the system. At the same time, the MicroSD card has a built-in antenna, and the RF input / output feeder Electrical point, will affect the impedance of the system, resulting in low test accuracy
Method used
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[0019] According to one embodiment of the present invention, the test device for MicroSD type wireless network card includes: a microstrip directional coupler, including two parallel first microstrip lines and second microstrip lines, wherein one end of the first microstrip line It is connected to the receiving / transmitting switch of the MicroSD wireless network card, the other end is connected to the antenna of the MicroSD wireless network card, one end of the second microstrip line is grounded through a resistor, and the other end is connected to the RF test feed point for The signal of the radio frequency link is drawn out through the first microstrip line and the second microstrip line or the input test signal is introduced into the receiving path of the radio frequency link; the test socket is used to test the MicroSD according to the signal of the radio frequency link or the input test signal respectively The performance parameters of the type wireless network card are te...
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The invention discloses a testing device and method for a MicroSD wireless local area network card, wherein the testing device comprises a micro-strip directional coupler and a test bench, wherein the micro-strip directional coupler comprises a first micro-strip line and a second micro-strip line which are parallel, wherein one end of the first micro-strip line is connected with a receiving / sending switch of the MicroSD wireless local area network card, and the other end of the first micro-strip line is connected with an antenna of the MicroSD wireless local area network card; one end of the second micro-strip line is grounded through a resistor, and the other end of the second micro-strip line is connected with a radio frequency testing feeding point. The micro-strip directional coupler is used for leading out signals of a radio frequency link through the first micro-strip line and the second micro-strip line and introducing input testing signals into a receiving passage way of the radio frequency link. The test bench is used for testing performance parameters of the MicroSD wireless local area network card according to the signals and the input testing signals of the radio frequency link.
Description
technical field [0001] The invention relates to the communication field, in particular to a testing device and method for a MicroSD wireless network card. Background technique [0002] MicroSD card is an extremely small flash memory card designed with SD (Secure Digital) architecture and is supported by most current mobile phones. Its volume is 15mm*11mm*0.7mm, almost equal to the size of a fingernail, and it is the smallest memory card currently available. It can also be connected to the SD card slot through an SD adapter card. [0003] MicroSD wireless network card is a SDIO (Secure Digital Input and Output, secure digital input and output) card with wireless LAN access function using the physical form of MicroSD. At present, most smart phones support SDIO devices, and the wireless network card based on MicroSD will Plug in the mobile phone, and install the corresponding driver and software in the mobile phone, then the access function of wireless local area network can ...
Claims
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Login to View More IPC IPC(8): H04L12/26
Inventor 杨延辉郭刚王峥
Owner LZEAL INFORMATION TECH