Signal source device
A signal source and signal output technology, applied in the field of communication, can solve the problems of difficult shielding effectiveness test, can not be put into the socket and box equipment with height less than 6U, etc.
Inactive Publication Date: 2010-09-22
HUAWEI TECH CO LTD
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Problems solved by technology
The antenna of the existing signal source is a sphere, and the feed circuit is inside the sphere. The minimum diameter of the sphere is 15 cm. There is generally no limit to the length and width of box-type equipment such as sub-boxes or cabinets. Therefore, the existing signal source can only Put it into a box-type device such as a subrack or a cabinet with a height greater than 6U (1U=44.5 mm), and cannot put a sub-box or box-type device with a height less than 6U, so for box-type devices such as a subrack or cabinet with a height less than 6U Difficult to test shielding effectiveness
Method used
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[0014] Such as image 3 As shown, it is a schematic side view of the signal source device provided by the embodiment of the present invention. The signal source device includes an insulating plate 301, and a conductive sheet 302 is attached to one side of the insulating plate 301. It can be considered that the conductive sheet 302 is attached to the insulating plate 301. On the conductive layer, the insulating plate and the conductive sheet are provided with opposite through holes 303; a feed circuit 304 is attached to the conductive sheet, and the ground terminal of the feed circuit is electrically connected to the conductive sheet; the other side of the insulating plate A metal wire 305 is attached, and the metal wire is connected to the signal output end of the feeding circuit through the through hole.
[0015] From image 3 It can be seen that the signal output end of the feed circuit 304 is connected with a metal wire 305, and the metal wire 305 is attached to the insula...
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Abstract
The embodiment of the invention discloses a signal source device, belonging to the communication field. The signal source device comprises an insulating board, a conducting strip is attached on one face of the insulating board, and opposite through holes are arranged on the insulating board and the conducting strip. A feed circuit is attached on the conducting strip, and the grounding end of the feed circuit is connected to the conducting strip. A metal wire is attached to the other face of the insulating board, and passes through the through holes to be connected to the signal output end of the feed circuit. The signal source device provided by the embodiment of the invention can be directly placed into box type equipment with the height less than 6U for a shielding efficiency test. The technical scheme provided by the embodiment of the invention is suitable for a communication system needing the shielding efficiency test.
Description
technical field [0001] The present invention relates to the communication field, in particular to a signal source device. Background technique [0002] There are clear requirements for external electromagnetic interference of communication equipment. For example, it is clearly defined in CISPR (International Special Committee on Radio Interference) 22 that within the range of 230MHz-1000MHz, the radiation field strength of CLASS (level) A equipment must be less than 57dBuV / m ( dBuV is the voltage value expressed in decibels, dBuV / m is the corresponding voltage value per meter). Box-type equipment such as subracks or cabinets are containers for communication equipment. In order to effectively suppress the external electromagnetic interference of communication equipment, when designing subracks or cabinets, it is necessary to consider that the external interference of communication equipment can be reduced to the limit required by the standard. the following. [0003] Such a...
Claims
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Login to View More IPC IPC(8): G01R1/28G01R31/00
Inventor 任华胜许帅
Owner HUAWEI TECH CO LTD