A method for improving the handset antenna radiation efficiency
A mobile phone antenna, radiation efficiency technology, applied in the direction of antenna coupling, radiating element structure, antenna support/installation device, etc., can solve the difficulty of optimizing the antenna radiation pattern of the antenna radiation area, difficult to apply mobile phone antenna, antenna radiation efficiency It is not easy to achieve high problems, so as to achieve the effect of improving the performance of the mobile phone and improving the radiation efficiency and gain of the antenna
Inactive Publication Date: 2012-01-04
ALIBABA (CHINA) CO LTD
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Problems solved by technology
[0004] Second, the currently known simulations of Planar Inverted-F Antenna (PIFA) are generally only for the spatial structure formed by laying antenna radiation strips on a simple PCB plane, and the obtained results are difficult to apply to the actual mobile phone antenna design
[0005] Third, the radiation efficiency of existing antennas is not easy to reach a high value
Therefore, it is very difficult to realize the minimization of the antenna radiation area and the optimization of the antenna radiation pattern at the same time.
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[0018] When applying the method of the present invention to improve the radiation performance of the antenna, it is first necessary to obtain the ferromagnetic material in the horn near the antenna and the iron ring, the camera medium, the metal ring near the antenna area, and the radio frequency under the antenna coverage area through actual debugging and testing. The electrical performance parameters of interface parts and audio interface parts, and use these parameters to model the above-mentioned components through simulation software.
[0019] Next you need to model the antenna. Such as figure 1 As shown, since the ferromagnetic material in the horn will absorb the electromagnetic wave energy emitted by the antenna, and the iron ring on the horn will affect the resonant frequency point of the antenna, the main radiation strip 1 of the antenna should be arranged away from the horn 4 of the mobile phone . On the other hand, the dielectric constant of the camera medium (no...
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The invention relates to a method of increasing mobile telephone antenna radiant efficiency that mainly includes steps as following: (1) relative elements which are near the antenna are modeled; (2) the antenna is modeled, the main radicalization bar is set conformably in position of the ferromagnetic matter which is far from the mobile telephone loudspeaker and hoop and surrounds the cam medium cutting hole, the assistant radicalization bar is set in position of the ferromagnetic matter which is near the mobile telephone loudspeaker and hoop and definite interval from said main radicalization bar; (3) The simulated debugging confirms the antenna figure which can fulfill the area of antenna is minimized and the radiant efficiency is a lowest value. Said method resolves the contradiction of high antenna radiant efficiency and small antenna size, minimized antenna radiant area and optimized antenna radiant direction graph, and the antenna radiant efficiency is increased, the property ofmobile telephone is improved.
Description
technical field [0001] The invention relates to a method for improving the radiation efficiency of a mobile phone antenna. Background technique [0002] With the rapid development of communication technology, the volume of mobile phones has become smaller and smaller, and the antenna, one of the key components of mobile phones, is also developing towards miniaturization. Existing mobile phone antennas cannot provide sufficiently high radiation efficiency to meet communication requirements while ensuring a small antenna distribution area. The reasons for the above situation mainly include the following points: [0003] First, there are more and more components configured in mobile phones, and most of these components are placed near the antenna, which has a significant impact on the performance of the antenna. In particular, ferromagnets and iron rings in mobile phone speakers have a great impact on parameters such as antenna energy radiation efficiency, antenna resonance fr...
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IPC IPC(8): H01Q1/52H01Q1/36H01Q1/24
Inventor 罗贤梁胡新荣
Owner ALIBABA (CHINA) CO LTD