Multi-frequency antenna feed matching device, multi-frequency antennas and wireless communications equipment
A multi-frequency antenna and feed matching technology, which is applied to antenna grounding devices, devices that make antennas work in different bands at the same time, antennas, etc., can solve the effect of antenna operating bandwidth and efficiency, insertion loss, deterioration of high-frequency broadband and efficiency And other issues
Active Publication Date: 2015-06-17
HONOR DEVICE CO LTD
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Problems solved by technology
In the prior art, the LTE antenna design scheme can adopt, for example, a structure such as IFA (Inverted F Antenna, Inverted F Antenna). The long ground wire is connected in parallel on the feed point. Although the ground wire can realize the matching of the low frequency band and increase the low frequency bandwidth and efficiency, it will deteriorate the high frequency broadband and efficiency; there is also a switch antenna in the prior art. A variety of different matching circuits are printed on the PCB. Each matching circuit matches a frequency band. By switching the switch, the antenna can work in different frequency bands. However, due to the impedance effect of the switch itself, and the introduction of the switch will cause insertion Loss, which affects the bandwidth and efficiency of the antenna when it works in the low frequency band
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[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0034] First aspect, such as figure 1 Shown is an embodiment of the multi-frequency antenna feeding matching device of the present invention. The multi-frequency antenna feed matching device includes:
[0035] ground part 1;
[0036] The power feeding part 2 is connected to the signal source, and the signal of the signal source is input to the power feeding part 2;
[0037] More than two ground wire branches with different lengths, one end of each ground wire br...
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The present invention relates to the field of antenna technologies and discloses a feeding matching apparatus of a multiband antenna, a multiband antenna, and a radio communication device to improve a bandwidth and efficiency of a lower frequency band and further improve a bandwidth and efficiency of a higher frequency band. The feeding matching apparatus of a multiband antenna includes: a grounding portion; a feeding portion connected to a signal source, where a signal of the signal source is input into the feeding portion; and two or more ground cable branches with different lengths, where one end of each ground cable branch is electrically connected to the feeding portion, the other end is electrically connected to the grounding portion, at least one ground cable branch is connected in series to a signal filtering component, and the signal filtering component is capable of preventing a signal lower than a frequency point corresponding to the signal filtering component from passing through it. The present invention is mainly applied to a multiband antenna.
Description
technical field [0001] The invention relates to the technical field of antennas, in particular to a multi-frequency antenna feeding matching device, a multi-frequency antenna and wireless communication equipment. Background technique [0002] LTE (Long Term Evolution, Long Term Evolution) is the evolution of 3GPP (The 3rd Generation Partnership Project), it is a transition between 3G (The 3rd Generation) and 4G (The 4th Generation) technology, and it is 3.9G (The 3.9Generation ), it also improves and enhances the 3G air access technology, using OFDM (Orthogonal Frequency Division Multiplexing) and MIMO (Multiple-Input Multiple-Output) as its The standard for the evolution of wireless networks, LTE has gradually been regarded as the mainstream technology for the evolution to 4G. [0003] Nowadays, in the field of mobile communication terminal products, in order to realize LTE technology, especially in the spectrum range of low frequency band, it is necessary to provide a min...
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IPC IPC(8): H01Q1/50H01Q1/48H01Q1/36H01Q5/00H01Q5/314H01Q5/328H01Q5/335
CPCH01Q5/328H01P1/2039H01P1/2135H01P5/12H01Q1/241H01Q1/48H01Q5/314H01Q5/335H01Q9/04H01Q13/08H04B1/0057H04B1/0458H04B1/18
Inventor 王汉阳李元鹏于亚芳侯猛
Owner HONOR DEVICE CO LTD