Design methodology for a reactively loaded Yagi-Uda antenna

Diana Arceo, Constantine Balanis

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


To design reactively loaded antenna arrays, a basic design methodology is proposed that combines superimposing the electric field of each antenna element along with multiobjective optimization. The design methodology is demonstrated in a three-element, reactively loaded, symmetrical, compact Yagi-Uda antenna. Because the antenna is symmetrical, the reactive loads can be used to steer the maximum gain of the antenna in two directions. The antenna maintains a high absolute gain and low VSWR over a 10% fractional bandwidth with an element spacing of 0.053λ. The antenna requires a simple matching circuit to maximize the impedance match of the antenna.

Original languageEnglish (US)
Article number6235990
Pages (from-to)795-798
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
StatePublished - 2012


  • Antenna arrays
  • Yagi antennas
  • compact antennas
  • folded antennas
  • impedance matching
  • multiobjective optimization
  • superdirectivity

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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