The Two-Port Transmission Method With Applications to Microstrip Phased Arrays

ADAŞ E., Alexopoulos N. G., De Flaviis F.

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, cilt.67, sa.9, ss.5900-5907, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 67 Sayı: 9
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1109/tap.2019.2922781
  • Dergi Adı: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.5900-5907
  • Anahtar Kelimeler: Leaky wave, microstrip antennas, mutual coupling, phased arrays, scan blindness, substrate wave, surface wave, SCAN BLINDNESS, ELIMINATION, ANTENNAS, PATCHES
  • Bursa Uludağ Üniversitesi Adresli: Hayır

Özet

A novel method is presented to investigate substrate leaky and/or surface wave mode effects within microstrip antenna arrays. The proposed methodology provides accurate modal analysis for the array elements, while including all metallic and different material inclusions, regardless of geometrical shape. Furthermore, the proposed methodology is very general because it accounts for all phenomena and design requirements including arbitrary excitation of the antenna elements in amplitude and phase, the effect of the substrate modes, mutual coupling, and scan blindness. Substrate waves can be studied directly from the same setup with an operating microstrip phased array. One additional significant advantage of this approach is that interelement antenna array spacing can be larger than half a wavelength in the design of phased arrays, thus, overcoming heretofore limitations in the study of scan blindness.