A new MDAS-DR antenna structure designed to efficiently shape a flat-topped radiation pattern (FTRP) is proposed. The antenna structure is composed of a stacked microstrip patch exciter and a multilayered disk array structure (MDAS) surrounded by a dielectric ring (DR) with a relative permittivity of 2.05. The MDAS-DR antenna designed at the band of 9.6-10.4 GHz was shown to be capable of shaping a good FTRP with a beam width of about 40°, at least within a fractional bandwidth of 8.0%.
Bibliographical noteFunding Information:
Manuscript received May 14, 2008; revised June 10, 2008. Current version published November 12, 2008. This work was supported by the IT R&D program of MKE/IITA (2007-F-041-02, Intelligent Antenna Technology Development), for which the authors are grateful.
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering