Antenna, antenna array and communication equipment
A technology of antenna and band-pass characteristics, which is applied to antenna arrays, antennas, resonant antennas, etc., can solve the problems of high-frequency antenna gain stability and polarization rejection ratio, etc.
Active Publication Date: 2022-03-11
HUAWEI MACHINERY
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Problems solved by technology
[0003] In existing communication equipment, since the size of the radiating part of the low-frequency antenna is usually larger than that of the high-frequency antenna, the high-frequency radio frequency signal radiated by the high-frequency antenna will excite a high-frequency induced current on the radiating part of the low-frequency antenna , and the induced current will further excite high-frequency electromagnetic waves, which will interact with the electromagnetic waves directly radiated by the high-frequency antenna, resulting in deterioration of the pattern parameters such as gain stability and polarization rejection ratio of the high-frequency antenna
Method used
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Embodiment Construction
[0046] In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that the term "coupled" hereinafter refers to "directly connected or indirectly connected".
[0047] In order to facilitate the understanding of the antenna array provided by the embodiment of the present application, its application scenario is described below. The antenna array provided by the embodiment of the present application is applied to communication equipment such as base stations. The antenna array includes high-frequency antennas and antennas located on the same antenna array. low frequency antenna. In the traditional common-aperture antenna array, the electromagnetic wave radiated by the high-frequency antenna will excite a high-frequency induced current in the radiation part of the low-frequency antenna, and the high-frequency induced current ...
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The present application provides an antenna, an antenna array and a communication device, wherein the antenna includes a radiation part and a feeding part, and the feeding part is coupled to the radiation part and is used to feed power to the radiation part, so that the radiation part radiates a low-frequency signal outward ; and the radiating part includes one or more frequency selective units with band-pass characteristics, and the radiating part is a structure that can excite pairs of canceling coupling currents when high-frequency signals pass through. Because when the high-frequency signal passes through the radiation part, each pair of coupling currents excited on the radiation part appears in pairs and can cancel each other, which can reduce or even completely eliminate the high frequency of the same frequency as the high-frequency signal on the radiation part. Induced current. In this way, when the high-frequency signal passes through, the radiating part can only radiate less or no electromagnetic waves with the same frequency as the high-frequency signal, which is beneficial to improve the gain stability and stability of the high-frequency antenna for transmitting high-frequency signals. Polarization suppression ratio and other pattern parameters.
Description
technical field [0001] The present application relates to the technical field of communication, and in particular to an antenna, an antenna array and communication equipment. Background technique [0002] In communication equipment such as base stations, high-frequency antennas and low-frequency antennas are usually configured at the same time. It is configured in the same antenna array as the low-frequency antenna to form a common-aperture antenna array. [0003] In existing communication equipment, since the size of the radiating part of the low-frequency antenna is usually larger than that of the high-frequency antenna, the high-frequency radio frequency signal radiated by the high-frequency antenna will excite a high-frequency induced current on the radiating part of the low-frequency antenna , and the induced current will further excite high-frequency electromagnetic waves, which will interact with the electromagnetic waves directly radiated by the high-frequency anten...
Claims
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IPC IPC(8): H01Q1/38H01Q1/50H01Q1/52H01Q9/28H01Q19/10H01Q21/24H01Q21/30H01Q1/24H01Q1/22
CPCH01Q1/38H01Q1/50H01Q1/521H01Q9/285H01Q19/104H01Q21/24H01Q21/30H01Q1/22H01Q1/246H01Q5/42H01Q1/523H01Q21/062
Inventor 罗兵李建平覃雯斐
Owner HUAWEI MACHINERY