A Dual-Polarized 1-D Tightly Coupled Dipole Array Antenna

作者：Lee Hakjune; Nam Sangwook^*

来源：IEEE Transactions on Antennas and Propagation, 2017, 65(9): 4511-4518.

DOI：10.1109/TAP.2017.2723262

• Array antennas
• base station
• dual-polarized antenna
• phased array

A dual-polarized 1-D tightly coupled dipole array (TCDA) antenna is proposed in this paper. To apply the TCDA design concept to a 1-D array, we place a conducting wall with slits and ferrite sheets along the 1-D dipole array. The simulated dual-polarized 1-D infinite TCDA antenna has a wide overlapped bandwidth of 2.83:1 (from 1 to 2.83 GHz) with VSWR < 2, high isolation (> 25 dB) between the horizontal and vertical polarizations (VPs), and low height of 1/5 lambda at the lowest operating frequency. A prototype of the proposed array is fabricated and measured, which consists of nine horizontal polarization (HP) dipoles and eight VP dipoles interleaved between the HP dipoles. The measured results show high gains > 7.2 dB when scanning up to 30 degrees and a wide half-power beamwidth in the yz plane > 61 degrees over the operating frequency band for both polarizations, consistent with the simulation result.

• 出版日期2017-9