TY - JOUR T1 - Gain enhancement for circularly polarized double layered printed hemispherical helical antenna arrays JO - Journal of Electromagnetic Waves and Applications PY - 2015/05/23 AU - Latef TA AU - Khamas S AU - Reza AW ED - DO - DOI: 10.1080/09205071.2015.1044126 VL - 29 IS - 10 SP - 1342 EP - 1353 Y2 - 2024/12/22 ER -