Polarization agile microstrip array antenna element

A. J. Sangster

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


A new microstrip antenna element is described which exhibits polarization agility. This is achieved by employing a T-slot radiator which is driven by the edge fields of a balanced microstrip line. The balanced line can support two propagating modes, namely, an even mode and an odd mode, and by switching between these modes, the orthogonal arms of the T-slot radiator are separately excited thus forming orthogonally polarized radiated fields. A microstrip patch antenna, which displays polarization agility using the same mechanism, is also described.

Original languageEnglish
Pages (from-to)419-421
Number of pages3
JournalMicrowave and Optical Technology Letters
Issue number10
Publication statusPublished - Sept 1991


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