Method and system for increasing antenna test accuracy
A technology for testing accuracy and antennas, applied in transmission systems, antenna radiation patterns, digital transmission systems, etc., it can solve the problems of poor grounding, small deterioration, and deterioration of antenna performance around the antenna, and achieve the effect of improving antenna testing accuracy.
Inactive Publication Date: 2017-03-15
杭州九爱科技有限公司
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Problems solved by technology
[0003] However, the existing single-coupling board test method has the following problems: if the antenna is off-positioned or the peripheral components of the antenna are not well grounded, or the metal battery cover is used as the antenna, sometimes only 2-3db of performance deterioration will result; for example: the metal battery cover of a mobile phone As the antenna of the whole machine, the ground shrapnel of the battery cover is not conductive or the ground impedance is greatly different, which will cause the performance of the antenna to deteriorate, but the degree of deterioration is small
[0009] Therefore, the existing single-coupling board test method is not enough to identify the above defects
Method used
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Embodiment 1
[0026] The embodiment discloses a system and a corresponding method for improving the test accuracy of an antenna. Such as figure 1 As shown, the system includes:
[0027] The computer as the measurement and control host is used to establish a communication connection with the tester and the antenna terminal product or gold machine to be tested to control radio frequency signal transmission and related data testing; and
[0028] At least two couplers deployed in the shielded signal fixture, each coupler is connected to the tester through a radio frequency cable (RF Cable), so as to collect gold in the treatment through multiple tests consistent with the number of couplers The test value of each coupler under different moving deviations in the fixture, and establish a simultaneous equation group to solve the weight of each coupling plate according to the test value, and then put the terminal product of the antenna to be tested into the fixture, according to the weight of each ...
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The invention relates to the technical field of communication, discloses a method and a system for increasing antenna test accuracy, and aims to increase the antenna test accuracy. The method disclosed by the invention comprises the following steps: deploying at least two couplers in a jig for shielding signals, and establishing connections between the couplers and a tester; determining a standard value of a golden sample, acquiring test values of the couplers of the golden sample under different moving deviations in the jig through a plurality of tests of which the quantity is consistent with the quantity of the couplers, and establishing simultaneous equations according to the test values to solve weights of coupled plates; and placing an antenna terminal product to be tested into the jig, and judging the antenna performance of the antenna terminal product according to the test values of the couplers and the corresponding weights. The method and the system disclosed by the invention can be applied to a wide variety of tests of mobile phones adopting the standards of WCDMA (Wideband Code Division Multiple Access), CDMA (Code Division Multiple Access), GSM (Global System for Mobile Communications), LTE (Long Term Evolution), WIFI (Wireless Fidelity) and Bluetooth, and relevant mobile equipment.
Description
technical field [0001] The invention relates to the technical fields of communication and antennas, in particular to a method and system for improving the testing accuracy of antennas. Background technique [0002] The existing assembly line antenna test station usually adopts the test method of single coupling board, because of factors such as the accuracy of the jig, the antenna directivity and the size of the coupling board, the standard requirements for antenna testing can only achieve + / -5db( dB---power relative value unit). Among them, when the shrapnel of the antenna is in poor contact, the shrapnel is damaged or the antenna is missing, the performance of the antenna will deteriorate by at least 15db, so the tolerance of + / -5db can effectively screen the above defects. [0003] However, the existing single-coupling board test method has the following problems: if the antenna is off-positioned or the peripheral components of the antenna are not well grounded, or the m...
Claims
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IPC IPC(8): H04M1/24H04L12/26G01R29/08G01R29/10
CPCH04M1/24G01R29/0878G01R29/10H04L43/50
Inventor 刘江峰
Owner 杭州九爱科技有限公司