Optimizing the isolated antenna structure
A technology for isolating antennas and antennas, applied in the directions of antennas, antenna coupling, antenna arrays, etc., can solve the problems of reduced antenna isolation and inability to freely change areas, and achieve the effects of increased isolation and good radiation efficiency
Inactive Publication Date: 2019-01-04
SHANGHAI HUAZHANG INFORMATION TECH CO LTD
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Problems solved by technology
[0003] In the existing mobile terminal, combined with the multi-antenna design of the metal frame, the area of the radiator of the antenna cannot be changed freely. If the distance is too close, the isolation between the antennas will be greatly reduced.
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[0019] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.
[0020] refer to figure 1 , the present invention discloses an optimized isolation antenna structure 100, including an antenna, the antenna includes a monopole antenna 1 and a PIFA antenna 2, and the monopole antenna 1 includes a first feeding point 11, a first short-circuit point 12 and a second An antenna body 13, the PIFA antenna 2 includes a second feed point 21, a second short-circuit point 22 and a second antenna body 23, the radiator of the monopole antenna 1 adopts a half wavelength of 1800MHZ, the The radiator of the PIFA antenna 2 adopts a quarter wavelength of 1575MHZ, so that the radio frequency current between the front ends of the first antenna body 13 and the second antenna body 23 is zero.
[0021] Wherein, the ends of the ...
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The invention discloses an optimization isolation antenna structure. The optimization isolation antenna structure comprises an antenna, the antenna comprises a monopole antenna and a PIFA antenna, the monopole antenna comprises a first feed point, a first short circuit point and a first antenna body, the PIFA antenna comprises a second feed point, a second short circuit point and a second antenna body, a radiator of the monopole antenna employs a half wavelength of 1800MHZ and a radiator of the PIFA antenna employs a quarter wavelength of 1575MHZ such that radio frequency currents between the front end of the first antenna body and the front end of the second antenna body are enabled to be zero. According to the invention, through such two antenna structures in different forms and adoption of the PIFA antenna with the quarter wavelength of 1575MHZ for cooperating with the monopole antenna with the half wavelength of 1800MHZ, the radio frequency currents between the two antennas are enabled to be zero, the isolation can be effectively enhanced, the radiation efficiency is quite good, and the optimization isolation antenna structure can support a 4G down frequency band needed by all domestic networks and a three-in-one antenna frequency range.
Description
technical field [0001] The invention relates to an antenna structure, in particular to an antenna structure with high isolation. Background technique [0002] In some mobile terminals, such as smart phones and flat-panel antennas, it is often necessary to use systems with different frequency ranges, which often requires multi-antenna design, and as mobile terminals have higher requirements for metal appearance, the demand for metal appearance combined with antenna design is increasing. . [0003] However, in the existing mobile terminal, combined with the multi-antenna design of the metal frame, the area of the radiator of the antenna cannot be changed freely. If the distance is too short, the isolation between the antennas will be greatly reduced. Contents of the invention [0004] The purpose of the present invention is to provide an antenna structure with good isolation. [0005] In order to realize the purpose, the present invention discloses an optimized isolation...
Claims
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IPC IPC(8): H01Q1/36H01Q5/00H01Q1/44H01Q21/00H01Q1/52H01Q1/24
CPCH01Q1/242H01Q1/36H01Q1/44H01Q1/52H01Q1/521H01Q5/00H01Q21/00
Inventor 张南粘明源陈威谕林家正陈建勋
Owner SHANGHAI HUAZHANG INFORMATION TECH CO LTD