ANALYSIS OF CIRCULARLY POLARIZED DIELECTRIC RESONATOR ANTENNA EXCITED BY A SPIRAL SLOT | Zendy

Z. H. Qian | Zendy; Kwok Wa Leung | Zendy; Rushan Chen | Zendy

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ANALYSIS OF CIRCULARLY POLARIZED DIELECTRIC RESONATOR ANTENNA EXCITED BY A SPIRAL SLOT

Author(s) -

Z. H. Qian,

Kwok Wa Leung,

Rushan Chen

Publication year - 2004

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 89

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier03102501

Subject(s) - dielectric resonator antenna , excited state , spiral antenna , spiral (railway) , dielectric resonator , circular polarization , slot antenna , antenna (radio) , dielectric , optics , turnstile antenna , physics , resonator , coaxial antenna , telecommunications , optoelectronics , microstrip antenna , engineering , microstrip , atomic physics , mechanical engineering

—The hemispherical dielectric resonator antenna (DRA) excited by a single-arm spiral slot is studied theoretically in this paper. The Green’s function technique is employed to formulate an integral equation for the spiral slot current. The moment,method with piecewise sinusoidal (PWS) basis and testing functions is used to convert the integral equation into a matrix equation by using a delta- gap exciting source. The input impedance, return loss, axial ratio and radiation pattern are calculated. Numerical results demonstrate that the analysis is efficient.

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