A Dual-Band Dual-Polarized Omnidirectional Antenna for 2G/3G/LTE Indoor System Applications
- Publication Type:
- Conference Proceeding
- 2018 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2018, 2018
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© 2018 IEEE. In this paper, we presented a dual-band dual-polarized (DP) omnidirectional antenna for 2G/3G/Long Term Evolution (LTE) indoor communication systems. Two modified cones compose the vertical polarized (VP) unit, which exhibits good omnidirectional radiation performance and achieves a wide impedance bandwidth. The loop antenna and the printed circular dipole arm arrays are arranged on the top end and middle end of the VP unit, respectively. They are connected by a commercial diplexer as the horizontal polarized (HP) units. Simulated results indicated that an impedance bandwidth of 790 MHz-1.14 GHz and 1.72-3.51GHz can be achieved for VP while another one of 806-980 MHz and 1.68-2.99 GHz is also obtained for HP. In the azimuth plane, omnidirectional radiation patterns for both VP and HP are achieved. For the lower and upper frequency bandsmore than 1 dBi and 3 dBi antenna gain are realized for both of the VP and HP radiations, respectively. Better port-to-port isolation, low cross polarization and little gain variation are also acquired.
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