A kind of cmmb antenna and mobile multimedia broadcasting device
A technology for mobile multimedia and broadcasting devices, which is applied to the connection of the antenna grounding switch structure, suitable for the antenna on movable objects, and the structure of the radiating element. and other problems to achieve the effect of simple structure design
Active Publication Date: 2015-10-07
江苏迅辰信息科技有限公司
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Problems solved by technology
The installation of the antenna not only needs to consider the shape of the antenna itself, but also needs to consider more electromagnetic radiation generated by the device where the antenna is located, especially the high-frequency work of the central processing unit. The signal will cause adverse effects, and even cause the antenna to fail to work normally. Therefore, the placement of the antenna in the electronic system needs to spend a lot of time to consider and verify
[0004] The CMMB antenna is usually placed outside the device to receive enough signals, which will take up a lot of space and affect the aesthetics of the CMMB device. Therefore, it is necessary to design an antenna that is placed inside the CMMB device and also able to meet its communication requirements
Method used
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[0022] Reference will now be made in detail to the embodiments depicted in the accompanying drawings. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods are not described in detail. procedures, components and circuits so as not to unnecessarily obscure the embodiments.
[0023] see Figure 1-4 Shown are respectively the structure of the first copper clad layer 1, the second copper clad layer 2, the dielectric substrate 3 and the copper strip 4 and the distribution of the metallized holes 8 of the resonant unit of the CMMB antenna 10. The resonant unit of the CMMB antenna 10 includes the first A copper clad layer 1, a second copper clad layer 2, a dielectric substrate 3, a copper strip 4 and a metallized ho...
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The invention provides a CMMB antenna. The CMMB antenna comprises a resonator unit, wherein the resonator unit comprises a dielectric substrate, a first copper coating and a second copper coating respectively coated on the dielectric substrate, a copper belt arranged inside the dielectric substrate, and a plurality of plated through holes which are arranged on the edge of the dielectric substrate and distributed at the two sides of the copper belt, wherein a plurality of micro flutes are arranged on the first copper coating; a feeder interface getting through the dielectric substrate is arranged at one end of the copper belt; and the first copper coating and the second copper coating are electrically connected by the plated through holes. The invention further provides a multimedia mobile broadcasting device using the CMMB antenna. With the adoption of the CMMB antenna provided by the invention, the performance requirements of the CMMB antenna are satisfied by simple structural design; moreover, the effect when the CMMB antenna is arranged inside the mobile multimedia broadcasting device is almost the same as that of a current external CMMB antenna by combining the used low-loss antenna dielectric substrate.
Description
technical field [0001] The invention belongs to the field of communication equipment, and in particular relates to a CMMB antenna and a mobile multimedia broadcasting device using the antenna. Background technique [0002] With the development of wireless communication technology, wireless communication equipment has higher and higher requirements. In order to meet the communication requirements, the existing wireless routers basically use external antennas, which greatly limits the industrial design and mechanism design of products. In addition, the external antenna also needs to design adaptive impedance matching connectors and mechanical modules, which account for more than 90% of the cost of the entire antenna. [0003] As the radiating unit and receiving device of the final radio frequency signal, the working characteristics of the antenna will directly affect the working performance of the entire electronic system. The installation of the antenna not only needs to con...
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IPC IPC(8): H01Q1/38H01Q1/50H01Q1/32H04B1/48
Inventor 刘若鹏徐冠雄邓存喜尹柳中
Owner 江苏迅辰信息科技有限公司