A Planar Monopole Antenna Loaded with a Semicircular Comb Nested Structural Element Array

Abstract

The invention relates to a planar printed monopole antenna loading a novel open resonant unit array of a semicircular comb-like nested structure, wherein the novel open resonant unit array is an openresonant unit array which is directly loaded on a lower ground plane and has the 3*2 novel semicircular comb-like nested structure, and belongs to a planar printed structure. With existence of the comb-like nested structure in the open resonant unit structure and a central gap, integral structure of the antenna is compact, and coupling with a printed monopole structure at an upper layer of the antenna to form a plurality of different resonant modes is facilitated, and different resonant frequencies are obtained correspondingly for widening antenna frequency band. Meanwhile, the open resonant unit array with the semicircular comb-like nested structure mainly cannot influence own radiation characteristics of the antenna. After simulation and actual test analysis, actual measured frequency band of the antenna is 3.43-4.54GHz and 5.36-5.73GHz, and frequency bandwidth of the antenna covers TDD-LTE B42 / 43, WLAN 802.11a (5.470-5.725GHz).

Description

technical field [0001] The invention provides a low-frequency planar printed monopole antenna loaded with a new semicircular comb-like nesting structure of an aperture resonant unit array, which belongs to the technical field of electromagnetic waves and reception. Background technique [0002] With the improvement of social science and technology and production technology, some mobile terminal equipment began to pursue the characteristics of smaller and smaller physical volume, higher and higher frequency band coverage and more and more diversified functions. For example, PIFA antennas (Planar Inverted F Antenna, Planar Inverted F Antenna) are often used in mobile phones to meet actual requirements, but the radiation characteristics of PIFA antennas are greatly affected by the height of the antenna, which often leads to narrowing of the antenna frequency band and reduction of radiation efficiency. . [0003] Monopole antennas are another wideband antenna type that is widel...

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Problems solved by technology

However, the existing parasitic unit structures are all simple polygons, such as rectangles or curved strips, most of which can only produce a specific resonant frequency.

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