Resonant frequency of an inhomogeneous Rectangular Microstrip Antenna

Maity, Sudipta; Gangopadhyaya, Malay; Gupta, Bhaskar

doi:10.1109/iementech.2017.8076927

Cited by 1 publication

(3 citation statements)

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“…On the other hand, it is possible to find the resonant frequency

()(, f_{normalr})

for

m \geq 1, n = 0, p = 0

mode. Typical results are shown in [22] and are not repeated here for the sake of brevity. Therefore, radiation characteristics of the HIRMA cannot be investigated properly using cavity model analysis with the help of

T {normalE}^{x}

and

T {normalM}^{x}

modes.…”

Section: Theorymentioning

confidence: 99%

“…It is found that the solution using

T {normalE}^{x}

and

T {normalM}^{x}

modes is unable to predict the internal field patterns for some

HE {normalM}_{m n p}

modes having

m \geq 1, n = 0, p = 0

. As the internal field components become zero at different

HE {normalM}_{m n p}

modes for

m \geq 1, n = 0, p = 0

, we cannot predict its radiation characteristics for those modes, which limits the application of the theory as presented in [22]. This is shown in detail in the next section.…”

Section: Introductionmentioning

confidence: 99%

“…As the dielectric discontinuity of the HIRMA is along the x ‐axis (see Fig. 1), the combination of both

T {normalE}^{x}

and

T {normalM}^{x}

modes [19–21] is used to predict its radiation characteristics [22]. It is found that the solution using

T {normalE}^{x}

and

T {normalM}^{x}

modes is unable to predict the internal field patterns for some

HE {normalM}_{m n p}

modes having

m \geq 1, n = 0, p = 0

.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Theory and experiment on horizontally inhomogeneous rectangular microstrip antenna

Maity

Gangopadhyaya

Gupta

2019

IET Microwaves Antenna & Prop

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Theoretical investigation on horizontally inhomogeneous rectangular microstrip antenna is presented here. The dielectric inhomogeneity is introduced by adding two different substrate materials side by side to increase the degrees of freedom by 2 (arm ratio and relative permittivity of newly added material). TE and TM both modes are used here for theoretical investigations. The transcendental equation is derived here to predict the resonant frequency for different modes. Closed‐form analytical expressions are also given to predict the far‐zone electric fields for different HEM modes. Theoretical results are compared with published results as found in the open literature, data obtained using commercially available numerical three‐dimensional electromagnetic simulator high‐frequency structure simulator, and the authors’ own experimental data to show the accuracy of their theory. The additional horizontal dielectric segment gives more flexibility to the antenna designer, leading to wider tuning range over conventional homogeneous RMA. Advantages of this novel antenna structure are also discussed in detail. The authors’ theory can be used (or extended) to investigate log‐periodic antenna using RMAs, fractal‐shaped RMAs etc.

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“…On the other hand, it is possible to find the resonant frequency

()(, f_{normalr})

for

m \geq 1, n = 0, p = 0

T {normalE}^{x}

and

T {normalM}^{x}

modes.…”

Section: Theorymentioning

confidence: 99%

“…It is found that the solution using

T {normalE}^{x}

and

T {normalM}^{x}

modes is unable to predict the internal field patterns for some

HE {normalM}_{m n p}

modes having

m \geq 1, n = 0, p = 0

. As the internal field components become zero at different

HE {normalM}_{m n p}

modes for

m \geq 1, n = 0, p = 0

, we cannot predict its radiation characteristics for those modes, which limits the application of the theory as presented in [22]. This is shown in detail in the next section.…”

Section: Introductionmentioning

confidence: 99%

“…As the dielectric discontinuity of the HIRMA is along the x ‐axis (see Fig. 1), the combination of both