Title :
Frequency tunning of a singly-fed rectangular dielectric resonator antenna with a wideband circular polarization
Author :
Sulaiman, Mohamad I. ; Khamas, Salam K.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. of Sheffield, Sheffield, UK
Abstract :
A rectangular dielectric resonator antenna (DRA) that is excited using an outer-fed square spiral strip has been studied theoretically and experimentally, where a circular polarization over a broad bandwidth of ~6.7% has been attained. Furthermore, it has been demonstrated that that the operating frequency can be tuned by shifting the spiral position along the DRA surface. The structure has been rigorously modeled using a method of moments (MoM) model.
Keywords :
antenna feeds; dielectric resonator antennas; method of moments; spiral antennas; frequency tuning; method of moments model; outer-fed square spiral strip antenna; singly-fed rectangular dielectric resonator antenna; wideband circular polarization; Bandwidth; Dielectric resonator antennas; Dielectrics; Frequency measurement; Spirals; Strips;
Conference_Titel :
Antennas and Propagation Conference (LAPC), 2011 Loughborough
Conference_Location :
Loughborough
Print_ISBN :
978-1-4577-1014-8
Electronic_ISBN :
978-1-4577-1015-5
DOI :
10.1109/LAPC.2011.6114113
