Photon crystal patch antenna
A patch antenna and photonic crystal technology, applied in the field of communication, can solve the problems of insufficient reflective photonic crystal antenna substrate energy, large return loss, etc., to achieve the effects of reducing absorption, increasing antenna gain, and increasing reflected energy
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Embodiment 1
[0014] Such as figure 1 , 2 , the length of the antenna substrate 1 is set to 200mm, the width is 100mm, and the thickness is 8mm. On the front of the antenna substrate 1, circular holes 2 arranged vertically and horizontally with a diameter of 20mm are drilled to form a photonic crystal structure. The distance between the centers of the circular holes 2 Both are 30mm. On the edge of the back side of the antenna base 1, add a length of 70mm and a rectangular metal frame 6 of 20mm in width, and embed the photonic crystal structure in the rectangular metal frame 6. The relative dielectric constant of the antenna base 1 medium is 6 (polytetrafluoroethylene material) ), add a 26×16mm patch antenna 3 above the dielectric layer, and the excitation source adopts a microstrip feeder 4 with a width of 4.7mm to feed the patch antenna 3 at the feed port 5, as image 3 As shown, the return loss S11 characteristic is obtained, and the minimum return loss S11 is about -41dB at a frequency...
Embodiment 2
[0016] Such as figure 1 , 2 , the length of the antenna substrate 1 is set to 300mm, the width is 50mm, and the thickness is 10mm. On the front of the antenna substrate 1, circular holes 2 arranged vertically and horizontally with a diameter of 32mm are drilled to form a photonic crystal structure. The distance between the centers of the circular holes 2 Both are 40mm. On the edge of the back side of the antenna base 1, add a length of 80mm and a rectangular metal frame 6 of 50mm in width, and embed the photonic crystal structure in the rectangular metal frame 6. The relative dielectric constant of the antenna base 1 medium is 10.2 (polytetrafluoroethylene material ), add a 26×16mm patch antenna 3 above the dielectric layer, and the excitation source adopts a microstrip feeder 4 with a width of 4.7mm to feed the patch antenna 3 at the feed port 5, as image 3 As shown, the return loss S11 characteristic is obtained, and the minimum return loss S11 is about -41dB at a frequen...
Embodiment 3
[0018] Such as figure 1 , 2 , the length of the antenna substrate 1 is set to 52mm, the width is 50mm, and the thickness is 4mm. On the front of the antenna substrate 1, circular holes 2 arranged vertically and horizontally with a diameter of 16mm are drilled to form a photonic crystal structure. The distance between the centers of the circular holes 2 Both are 20mm. On the edge of the back side of the antenna substrate 1, the length is 30mm, and the rectangular metal frame 6 with a width of 26mm is embedded in the rectangular metal frame 6. The photonic crystal structure is embedded, and the relative dielectric constant of the antenna substrate 1 medium is 2.2 (polytetrafluoroethylene material ), add a 26×16mm patch antenna 3 above the dielectric layer, and the excitation source adopts a microstrip feeder 4 with a width of 4.7mm to feed the patch antenna 3 at the feed port 5, as image 3 As shown, the return loss S11 characteristic is obtained, and the minimum return loss S...
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Abstract
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