Double-layer wideband rectangular microband paste antenna with non-radiant edged feeder
A microstrip patch antenna, non-radiative technology, applied in the structural form of radiating elements, antennas, electrical components, etc., can solve the problems of narrow bandwidth, shortening the length of feeding lines, etc., achieve large scanning angle, shortening feeding length, compression The effect of wiring space
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[0041] Example 1:
[0042] An X-band non-radiating edge-fed broadband double-layer microstrip patch antenna. The structure of the antenna is exactly the same as that shown in Fig. 1. The microstrip line 7 is used for power feeding, and the parasitic element 5 has 3 slots 8 on it. Among them, the plate parameters of the parasitic dielectric plate 1 are: the thickness is 0.254mm, and the relative dielectric constant is 4.36; the relative dielectric constant of the intermediate dielectric layer 2 is a foam plate with a relative dielectric constant of 1.07, and the thickness is h = 0.093λ 0 ; The plate parameters of the feed dielectric plate 3 are: the thickness is 0.508, and the relative dielectric constant is 2.94. The geometric parameters of the parasitic element 5 are: the length of the radiating side L 1 =0.36λ 0 , The ratio of the length of the radiating side to the non-radiating side L 1 / W 1 =1.22; The geometric parameter of the feeder 6 is: the length of the radiating side L ...
Example Embodiment
[0051] Example 2:
[0052] An S-band non-radiating edge-fed broadband double-layer microstrip patch antenna. The structure of the antenna is basically the same as that of FIG. 1, and it uses microstrip line feed. The difference is that the parasitic element 5 is located above the parasitic dielectric plate 1. There are 6 slots 8 on the parasitic element of the antenna. The parameters of the parasitic dielectric plate 1 are as follows: the thickness is 1.5mm, the relative dielectric constant is 2.55; the intermediate dielectric layer 2 is air with the relative dielectric constant of about 1.0, Thickness h = 0.056λ 0 ; The plate parameters of the feed dielectric plate 3 are: the thickness is 1.5, and the relative dielectric constant is 2.55. The geometric parameters of the parasitic element 5 are: the length of the radiating side L 1 = 0.32λ 0 , The ratio of the length of the radiating side to the non-radiating side L 1 / W 1 =1.1; the geometric parameter of the feeding element 6 is:...
Example Embodiment
[0055] Example 3
[0056] An L-band non-radiating edge-fed broadband double-layer microstrip patch antenna. The structure of the antenna is basically the same as that in Fig. 1, except that the coplanar feeding of the microstrip line 7 is changed to the coaxial probe feeding, and the parasitic element 5 has 3 slots. The parameters of the parasitic dielectric plate 1 are as follows: thickness is 1.524mm, relative dielectric constant is 3.48; intermediate dielectric layer 2 is a foam plate with relative dielectric constant of about 1.4, thickness h=0.045λ 0 ; The plate parameters of the feed dielectric plate 3 are: the thickness is 2, the relative dielectric constant is 4.5; the geometric parameters of the parasitic element 5 are: the length of the radiating side L 1 = 0.35λ 0 , The ratio of the length of the radiating side to the non-radiating side L 1 / W 1 =1.4; the geometric parameter of the feeder 6 is: the length of the radiating side L 2 =0.43λ 0 / ε r3 0.5 , The ratio of the ...
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