High-Isolation XX-Polar Antenna

作者：Kaboli Mohsen^*; Abrishamian Mohammad Sadegh; Mirtaheri Seyed Abdullah; Aboutorab Seyed Mohsen

来源：IEEE Transactions on Antennas and Propagation, 2012, 60(9): 4046-4055.

DOI：10.1109/TAP.2012.2207059

• Aperture coupled
• DCS/UMTS (DU)
• dual linear slant polarization
• dual-band
• GSM

A new configuration of the dual-band and dual-polarized antenna is presented, which is fed by aperture coupling for the existing mobile communication systems working over 870-960 MHz (GSM) and 1710-2180 MHz (DCS/UMTS) frequency band. XX-Polar antenna stands for an antenna with dual-band and dual linear slant polarization. In this paper DU band stands for DCS/UMTS band. Measurement results show that the proposed antenna yields good broadside radiation characteristics including symmetric radiation patterns, low cross-polarization level (< -14 dB), low backlobe level (F/B >20 dB) and high isolation (>30 dB) at both bands. The designed antenna has an impedance bandwidth of 20.4% (790-970 MHz) for VSWR <1.5 in the lower band and 29.3% for VSWR <1.6 (1630-2190 MHz) in the upper band. The measured average gains are about 9.3-10.2 and 8.6-10 dBi in the lower and upper band, respectively. It is also promising for array antenna in various wireless systems.

• 出版日期2012-9