Dual-frequency wide-beam microstrip antenna working in S wave band
A microstrip antenna and band technology, applied in the field of communication, can solve the problems of insufficient low-elevation-angle gain and narrow space-borne antenna beam, and achieve the effect of reducing volume and weight, improving low-elevation-angle gain, and ensuring radiation.
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[0026] combine figure 1 , the upper radiation patch 1 is located on the upper dielectric substrate 2, the lower radiation patch 4 is located on the lower dielectric substrate 5, the bottom surface of the upper dielectric substrate 2 is connected to the top surface of the lower dielectric substrate 5, and both dielectric substrates are F4BTM-1 / 2 plate, the thickness is 2mm, the loss tangent is 0.0015, the dielectric constant of the upper plate is 3.5, and the dielectric constant of the lower plate is 2.6. Both microstrips are fed by coaxial probes. The coaxial probes of the lower microstrip antenna pass through the lower dielectric substrate 5 and are connected to the lower metal radiation patch 4. The two feeding points are at a 90° angle to the center of the radiation patch. ° angle, the coaxial probe of the upper microstrip antenna passes through the upper dielectric substrate 2 and connects with the upper metal radiation patch 1, the two coaxial probes also form an angle o...
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