Dielectric loaded dual-frequency resonant cavity antenna
A technology of dielectric loading and frequency resonance, which is applied in the directions of antenna grounding device, antenna grounding switch structure connection, radiation element structure, etc., can solve the problems of high processing cost, small selection range of processing materials, and large workload, etc., to reduce processing Effects of cost, broadening of options, reduction of requirements
Inactive Publication Date: 2017-09-15
NANJING UNIV OF SCI & TECH
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Problems solved by technology
The implementation schemes of the dual-frequency resonant cavity antenna cover mainly include two-dimensional dielectric rods and two-dimensional frequency selective surfaces, but the design and simulation of the antenna cover with these two structures requires a lot of work, and it is impossible to use low dielectric constant dielectrics. Board achieves high gain and good pattern, small selection range of processing materials, high processing cost
Method used
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Embodiment 1
[0040] like figure 1 The present invention shown is mainly composed of a metal ground plate 1 , a feed antenna 3 and a partially reflective cladding 4 .
[0041] Wherein the feed antenna 4 such as figure 2 As shown, it includes a dielectric substrate 3-1, a first patch 3-2, a second patch 3-3, and an upper dielectric plate 3-4 arranged in sequence from bottom to top. The first patch 3-2, the second patch The second patch 3-3 realizes the radiation of two frequencies, the first patch 3-2 is excited by the feed port 2, and the second patch 3-3 is passed through the air layer (foam material) by the first patch 3-2 excitation. The matching of the antenna is realized by moving the feed port 2 .
[0042] The partially reflective cladding 4 is composed of two layers of dielectric plates with different thicknesses and an air layer therein. The antenna enhances the directivity of the whole antenna through the continuous reflection and transmission of the radiated waves of the feed...
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The invention discloses a dielectric loaded dual-frequency resonant cavity antenna. The antenna comprises a metal ground plate, a feed port, a feed antenna, a partial reflection cladding plate, long screws, nylon columns and nuts used for fixing and supporting; the metal ground plate is tightly attached to the lower surface of the feed antenna; the partial reflection cladding plate is composed of two layers of dielectric plates with different thicknesses and loaded above the feed antenna; the partial reflection cladding plate and the metal ground plate are connected and supported by the long screws, the nylon columns and the nuts; the feed antenna comprises a dielectric substrate, a first patch, a second patch, and an upper dielectric plate which are orderly arranged from bottom to top; the first patch and the second patch realize radiation of two frequencies; and the first patch is excited by the feed port and the second patch is excited by the first patch through an air layer. The antenna of the invention has the characteristics of being simple in structure and convenient in processing, and capable of realizing high gain and multi-band.
Description
technical field [0001] The invention belongs to the technical field of wireless communication antennas, in particular to a medium-loaded dual-frequency resonant cavity antenna. Background technique [0002] At present, resonant cavity antennas have made great progress in terms of high gain, wide frequency band and low profile. The implementation schemes of the dual-frequency resonant cavity antenna cover mainly include two-dimensional dielectric rods and two-dimensional frequency selective surfaces, but the design and simulation of the antenna cover with these two structures requires a lot of work, and it is impossible to use low dielectric constant dielectrics. The board achieves high gain and good direction diagram, the choice of processing materials is small, and the processing cost is high. Contents of the invention [0003] The object of the present invention is to provide a medium-loaded dual-frequency resonant cavity antenna that is easy to design and process, and ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01Q1/36H01Q1/38H01Q1/50H01Q1/48
CPCH01Q1/36H01Q1/38H01Q1/48H01Q1/50
Inventor 宗志园钟高鹏赵鹏超于银华吴文
Owner NANJING UNIV OF SCI & TECH