Research Article
Analysis and Design of Gap-Coupled Annular Ring Microstrip Antenna
Table 1
Designing specification of annular ring microstripantenna.
| Parameters | Value |
| Substrate material used | RT Duroid 5870 | Effective relative
permittivity | ε eff = 2.1936 | Relative permittivity of
the substrate | ε r = 2.32 | Thickness of dielectric
substrate | h = 0.159 cm | Inner radius of the
inner ring | a1 = 3 cm | Outer radius of the
inner ring | b1 = 6 cm | Feed point of the inner
ring | c = 3.35 cm | Inner radius of outer
ring | a2 = 6.05 cm. | Outer radius of outer
ring | b2 = 9.05 cm. |
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