Fine-tuning on the effective patch radius expression of the circular microstrip patch antennas

YILMAZ A. E.

Radioengineering, cilt.19, sa.3, ss.386-391, 2010 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 19 Sayı: 3
  • Basım Tarihi: 2010
  • Dergi Adı: Radioengineering
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.386-391
  • Anahtar Kelimeler: Circular microstrip patch antenna, Closed-form expression, Effective patch radius, Particle swarm optimization, Resonant frequency
  • Ankara Üniversitesi Adresli: Evet

Özet

In this study, the effective patch radius expression for the circular microstrip antennas is improved by means of several manipulations. Departing from previously proposed equations in the literature, one of the most accurate equations is picked up, and this equation is fine-tuned by means of Particle Swarm Optimization technique. Throughout the study, impacts of other parameters (such as the definition of the fitness/objective function, the degree-of-freedom in the proposed effective patch radius expression, the number of measured resonant frequency values) are observed in a controlled manner. Finally, about 3% additional improvement is achieved over a very accurate formula, which was proposed earlier.