Design Of Low Profile Dipole Antenna Based On Artificial Magnetic Conductor

Wireless communication has been developing rapidly in recent years. Antenna as the indispensable part of wireless communication equipment, is designed for miniaturization, broadband and multi-band. Based on the characteristics of the artificial magnetic conductor (AMC), the design of low-profile antenna elements for base station, dipole antenna and antenna arrays has been presented in this paper.A low-profile antenna consisting of two open-loop rectangle is designed based on AMC reflector with open-loop rectangular structure. The measured results indicated that the antenna has the relative bandwidth over 40% and the gain in range of 7.3-8.5dBi.Through simulating and comparing in terms of VSWR of antenna with 4 kinds of typical AMC reflctor structure, the performance of dipole antenna loaded loop AMC reflector is better than the others. On the basis of the above, a low-profile dipole antenna and dipole antenna arrays based on loop AMC structure is proposed. The measured results showed that the dipole antenna has the relative bandwidth of 39.2% and the gain in range of 7.5-9.5dBi,1×2 dipole array has the relative bandwidth of 44.1% and the gain in range of 7.6-11.8dBi,2×2 dipole array has the relative bandwidth was 45.8% and the gain in range of 7.5-12.5dBi. The above index meets the design requirements.