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- Title
Performance optimisation of high-gain antennas using partially reflective cavity resonance.
- Authors
Dongho Kim; Oh-Jin Kwon; Hee-Suk Pang; Eun-Hee Kim
- Abstract
The authors propose a new method to optimise the geometry of partially reflective superstrates (PRSs) of resonant-type antennas, which is suggested to enhance both antenna gain and bandwidth at the same time. Specifically, their approach is about finding optimum arrangement of unit cells printed on PRSs. To construct an optimised PRS, they introduce some defected cells that are not covered with ordinary metallic patterns. By determining optimised arrangement of the defected and ordinary cells, they show that they can further improve impedance matching and radiation bandwidths, total efficiency, and antenna gain all at once. They use a real-value hybrid genetic algorithm for the optimisation. All experimental data show excellent agreement with predicted ones, which proves the validity of their approach.
- Subjects
GRAY codes; CAVITY resonator filters; BANDWIDTHS; WIRELESS communications equipment; ANTENNA design
- Publication
IET Microwaves, Antennas & Propagation (Wiley-Blackwell), 2016, Vol 10, Issue 2, p237
- ISSN
1751-8725
- Publication type
Article
- DOI
10.1049/iet-map.2015.0507