Broadband double‐dipole microstrip antenna with symmetrical corner‐fed and planar antenna array on its basis

ABSTRACT The new interpretation of E‐shaped microstrip patch antenna is presented. E‐shaped antenna can be treated as a pair of symmetrically fed broadband diploes folded into compact structure with frequency band up to 25%. Proposed antenna was used as element to build pair of antenna arrays for 1.92–2.17 GHz and 1.5–1.75 GHz frequency bands. The electric size of proposed antenna arrays is about 1.3×1.3 wavelengths which is hardly reachable for air substrate single‐layer microstrip antennas operating in 15% bandwidth. The results of theoretical and experimental investigations of matching and gain properties of proposed antennas are presented. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:229–232, 2017