Feed network and antenna
A feeding network and a part of the technology, applied in the direction of antennas, antenna components, independent non-interactive antenna combinations, etc., can solve the problems of antenna PIM index instability, low reliability, deterioration, etc., to improve RTWP or RSSI index , Improve reliability and stability, and improve the effect of mobile communication quality
Active Publication Date: 2014-03-12
HUAWEI TECH CO LTD
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Problems solved by technology
[0006] However, the metal connection in the feed network of the above-mentioned prior art is complicated and there are many connections, which may easily cause unstable PIM indicators of the antenna and low reliability. RSSI, Received Signal Strength Indication) deterioration
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[0020] 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 making creative efforts belong to the protection scope of the present invention.
[0021] Please refer to the attached figure 2 , is a three-dimensional schematic diagram of the feed network structure provided by Embodiment 1 of the present invention, with image 3 is attached figure 2 A schematic diagram of a section 27 perpendicular to the direction of signal transmission in the exemplary feeding network.
[0022] in the attached figure 2 or attached image 3 In the illustrated embodiment, the feeding network includes at least two i...
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Embodiments of the present invention provide a feed network and an antenna, so as to reduce the passive intermodulation interference, and improve the reliability, stability, and mobile communication quality of the antenna. The feed network includes at least two separate radio frequency transmission areas. At least one of the radio frequency transmission areas includes at least two signal lines. The at least two separate radio frequency transmission areas are separated by a metal interlayer. One physical surface of the metal interlayer is exposed to one of the at le two separate radio frequency transmission areas, and the other physical surface of the metal interlayer is exposed to another one of the at least two separate radio frequency transmission areas. In the feed network of the present invention, the radio frequency transmission areas are separated by the metal interlayer without using any screw or rivet connection. Therefore, the passive intermodulation interference caused by the metal connection is reduced, which increases the reliability and stability of the antenna, enhances the RTWP or RSSI index of the system, and improves the mobile communication quality.
Description
technical field [0001] The invention relates to the field of wireless communication, in particular to a feeding network and an antenna. Background technique [0002] In a wireless communication system, as voice and data information need to pass within a fixed bandwidth increases day by day, passive intermodulation (Passive InterModulation, PIM) becomes an important factor restricting system capacity. PIM is a frequency interference caused by the nonlinear characteristics of various passive devices in the transmission system. For example, in high-power, multi-channel systems, the nonlinearity of passive devices will generate higher harmonics relative to the operating frequency , these harmonics mix with the operating frequency to create a new set of frequencies, just as two or more frequencies mixed together in an active device create spurious signals in a nonlinear device. When the spurious intermodulation signal falls within the receiving frequency band of the base station...
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IPC IPC(8): H01Q23/00
CPCH01Q21/28H01P3/08H01P3/088H01Q1/526
Inventor 李建平谢国庆肖伟宏段德钦
Owner HUAWEI TECH CO LTD